Re: Kernel Oops while disconnecting USB peripheral (always)

From: Sarbojit Ganguly
Date: Mon Jul 23 2012 - 02:04:39 EST

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In reply to: Daniel Mack: "Re: Kernel Oops while disconnecting USB peripheral (always)"
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Hello Daniel,

That is why I provided two stacks,

1st one is when I tried to remove the USB hub (which connects a webcam
+ microphone)
2nd one is when I tried to remove an USB powered external HDD.

Just to make sure whether the problem is with USB sound or the USB subsystem.

On 23 July 2012 11:20, Daniel Mack <zonque@xxxxxxxxx> wrote:
> On 23.07.2012 05:42, Sarbojit Ganguly wrote:
>> Dear all,
>>
>> Problem description:
>>
>> A 4 port USB hub which when disconnected yields an Oops.
>> The USB hub connects the following peripherals:
>> 1. USB keyboard
>> 2. USB mouse
>> 3. USB webcam + microphone built-in
>>
>> The details of lsusb are provided.
>>
>> This problem occurs when any USB device is removed (mass storage/usb
>> input devices etc.)
>
> Are you sure about this? The stack trace clearly blames the audio
> driver. Can you provide one that happens without the webcam in the game?
>
>
> Daniel
>
>
>>
>> Kernel version:
>> Linux version 3.5.0 (sarbojit@Phrozen) (gcc version 4.6.3
>> (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #2 SMP Sun Jul 22 23:41:08 IST 2012
>>
>> CONFIG_DEBUG_PAGEALLOC=y has been turned on along with other kernel debug flags.
>>
>> Output of ver_linux script:
>>
>> If some fields are empty or look unusual you may have an old version.
>> Compare to the current minimal requirements in Documentation/Changes.
>>
>> Linux Phrozen 3.5.0 #2 SMP Sun Jul 22 23:41:08 IST 2012 x86_64 x86_64
>> x86_64 GNU/Linux
>>
>> Gnu C 4.6
>> Gnu make 3.81
>> binutils 2.22
>> util-linux 2.20.1
>> mount support
>> module-init-tools 3.16
>> e2fsprogs 1.42
>> PPP 2.4.5
>> Linux C Library 2.15
>> Dynamic linker (ldd) 2.15
>> Procps 3.2.8
>> Net-tools 1.60
>> Kbd 1.15.2
>> Sh-utils 8.13
>> wireless-tools 30
>> Modules Loaded arc4 rt2800pci rt2800lib crc_ccitt rt2x00pci
>> rt2x00lib mac80211 snd_hda_codec_realtek i915 snd_hda_intel
>> snd_hda_codec snd_usb_audio snd_pcm snd_hwdep snd_usbmidi_lib
>> snd_seq_midi snd_rawmidi drm_kms_helper uvcvideo drm
>> snd_seq_midi_event joydev snd_seq videobuf2_core cfg80211 snd_timer
>> videodev jmb38x_ms videobuf2_vmalloc videobuf2_memops psmouse
>> snd_seq_device snd snd_page_alloc serio_raw soundcore bnep parport_pc
>> memstick eeprom_93cx6 ppdev i2c_algo_bit hid_generic rfcomm bluetooth
>> lp parport mxm_wmi acer_wmi sparse_keymap wmi mac_hid video usbhid hid
>> sdhci_pci sdhci r8169
>>
>>
>> Here is the syslog:
>>
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.529418] usb 2-3: USB
>> disconnect, device number 2
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.529427] usb 2-3.1: USB
>> disconnect, device number 3
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.538766] usb 2-3.2: USB
>> disconnect, device number 4
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.552751] BUG: unable to handle
>> kernel paging request at ffff880135366ac8
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.552827] IP:
>> [<ffffffffa02a9648>] snd_usb_audio_disconnect.isra.2+0x128/0x1b0
>> [snd_usb_audio]
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.552912] PGD 1c0c063 PUD
>> baf6e067 PMD bb118067 PTE 8000000135366160
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.552984] Oops: 0000 [#1] SMP
>> DEBUG_PAGEALLOC
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.553038] CPU 1
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.553057] Modules linked in: arc4
>> rt2800pci rt2800lib crc_ccitt rt2x00pci rt2x00lib mac80211 i915
>> snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_usb_audio joydev
>> snd_pcm snd_hwdep snd_usbmidi_lib snd_seq_midi snd_rawmidi uvcvideo
>> snd_seq_midi_event drm_kms_helper drm cfg80211 videobuf2_core videodev
>> snd_seq snd_timer snd_seq_device snd videobuf2_vmalloc psmouse
>> snd_page_alloc jmb38x_ms soundcore memstick videobuf2_memops serio_raw
>> i2c_algo_bit hid_generic eeprom_93cx6 parport_pc bnep ppdev rfcomm
>> bluetooth lp parport acer_wmi mxm_wmi sparse_keymap mac_hid video wmi
>> usbhid hid sdhci_pci sdhci r8169
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.553773]
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.553780] Pid: 21, comm: khubd
>> Not tainted 3.5.0 #2 Acer Aspire 4730Z /Aspire 4730Z
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.553862] RIP:
>> 0010:[<ffffffffa02a9648>] [<ffffffffa02a9648>]
>> snd_usb_audio_disconnect.isra.2+0x128/0x1b0 [snd_usb_audio]
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.553966] RSP:
>> 0018:ffff880139547b50 EFLAGS: 00010282
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.554012] RAX: 0000000000000001
>> RBX: ffff880135277800 RCX: 0000000000016f88
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.554068] RDX: 000000000000e62b
>> RSI: 0000000000000000 RDI: 0000000000000202
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.554125] RBP: ffff880139547b80
>> R08: 0000000000000364 R09: ffff88013fbfafd0
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.554180] R10: 000000000000007b
>> R11: 0000000000000001 R12: ffff880135277870
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.554238] R13: ffff88013450ac00
>> R14: ffff880135366ac8 R15: ffff8801352778d8
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.554294] FS:
>> 0000000000000000(0000) GS:ffff88013fc80000(0000)
>> knlGS:0000000000000000
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.554362] CS: 0010 DS: 0000 ES:
>> 0000 CR0: 000000008005003b
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.554407] CR2: ffff880135366ac8
>> CR3: 00000001366a6000 CR4: 00000000000407e0
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.554464] DR0: 0000000000000000
>> DR1: 0000000000000000 DR2: 0000000000000000
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.554519] DR3: 0000000000000000
>> DR6: 00000000ffff0ff0 DR7: 0000000000000400
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.554577] Process khubd (pid: 21,
>> threadinfo ffff880139546000, task ffff880139badcc0)
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.554637] Stack:
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.554657] ffff88013271a000
>> ffff880132478c30 ffff880132478c00 ffff88013271a000
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.554736] ffffffffa02bd718
>> 00000000ffffffea ffff880139547b90 ffffffffa02a96ea
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.554814] ffff880139547be0
>> ffffffff814b069d ffff880139547be0 0000000081414108
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.554889] Call Trace:
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.554926] [<ffffffffa02a96ea>]
>> usb_audio_disconnect+0x1a/0x20 [snd_usb_audio]
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.554994] [<ffffffff814b069d>]
>> usb_unbind_interface+0x5d/0x1b0
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.555050] [<ffffffff814097cc>]
>> __device_release_driver+0x7c/0xe0
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.555102] [<ffffffff8140985c>]
>> device_release_driver+0x2c/0x40
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.555155] [<ffffffff81409264>]
>> bus_remove_device+0xe4/0x120
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.555206] [<ffffffff81406a03>]
>> device_del+0x123/0x1b0
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.555256] [<ffffffff814ae1af>]
>> usb_disable_device+0xaf/0x1f0
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.555306] [<ffffffff814a6d20>]
>> usb_disconnect+0x90/0x120
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.555353] [<ffffffff814a6d09>]
>> usb_disconnect+0x79/0x120
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.555399] [<ffffffff814a7d88>]
>> hub_port_connect_change+0xa8/0x6c0
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.555453] [<ffffffff814a8733>]
>> hub_events+0x393/0x5b0
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.555500] [<ffffffff814a8985>]
>> hub_thread+0x35/0x1a0
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.555545] [<ffffffff81076d70>] ?
>> __init_waitqueue_head+0x40/0x40
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.555598] [<ffffffff814a8950>] ?
>> hub_events+0x5b0/0x5b0
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.555646] [<ffffffff810762d3>]
>> kthread+0x93/0xa0
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.555692] [<ffffffff8166f864>]
>> kernel_thread_helper+0x4/0x10
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.555744] [<ffffffff81076240>] ?
>> __init_kthread_worker+0x40/0x40
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.555795] [<ffffffff8166f860>] ?
>> gs_change+0x13/0x13
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.555839] Code: 00 48 39 c2 75 ad
>> 4c 8b b3 d8 00 00 00 4c 8d bb d8 00 00 00 4d 39 fe 74 1a 66 2e 0f 1f
>> 84 00 00 00 00 00 4c 89 f7 e8 18 24 00 00 <4d> 8b 36 4d 39 fe 75 f0 4c
>> 8b b3 f0 00 00 00 4c 8d bb f0 00 00
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.556149] RIP
>> [<ffffffffa02a9648>] snd_usb_audio_disconnect.isra.2+0x128/0x1b0
>> [snd_usb_audio]
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.556149] RSP <ffff880139547b50>
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.556149] CR2: ffff880135366ac8
>> Jul 23 07:38:22 Phrozen kernel: [ 1691.585993] ---[ end trace
>> 5c54ad131247c0a7 ]---
>> Jul 23 07:39:47 Phrozen kernel: imklog 5.8.6, log source = /proc/kmsg started.
>> Jul 23 07:39:47 Phrozen rsyslogd: [origin software="rsyslogd"
>> swVersion="5.8.6" x-pid="563" x-info="http://www.rsyslog.com";] start
>> Jul 23 07:39:47 Phrozen rsyslogd: rsyslogd's groupid changed to 103
>> Jul 23 07:39:47 Phrozen rsyslogd: rsyslogd's userid changed to 101
>> Jul 23 07:39:47 Phrozen rsyslogd-2039: Could not open output pipe
>> '/dev/xconsole' [try http://www.rsyslog.com/e/2039 ]
>> Jul 23 07:39:47 Phrozen bluetoothd[556]: Failed to init alert plugin
>> Jul 23 07:39:47 Phrozen bluetoothd[556]: Failed to init time plugin
>> Jul 23 07:39:47 Phrozen bluetoothd[556]: Failed to init proximity plugin
>> Jul 23 07:39:47 Phrozen bluetoothd[556]: Failed to init gatt_example plugin
>>
>>
>> One more:
>>
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.550604] VFS: Busy inodes after
>> unmount of sdb1. Self-destruct in 5 seconds. Have a nice day...
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.551053] BUG: unable to handle
>> kernel NULL pointer dereference at 00000000000001e8
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.551178] IP:
>> [<ffffffff811fdb16>] ext3_evict_inode+0x46/0x2c0
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.551275] PGD bb57e067 PUD bb4a2067 PMD 0
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.551346] Oops: 0000 [#1] SMP
>> DEBUG_PAGEALLOC
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.551438] CPU 1
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.551470] Modules linked in: uas
>> usb_storage snd_usb_audio snd_usbmidi_lib hid_generic usbhid hid arc4
>> rt2800pci rt2800lib crc_ccitt rt2x00pci rt2x00lib mac80211
>> snd_hda_codec_realtek i915 snd_hda_intel snd_hda_codec snd_hwdep
>> snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event drm_kms_helper
>> joydev snd_seq cfg80211 snd_timer snd_seq_device snd drm uvcvideo
>> jmb38x_ms videobuf2_core soundcore snd_page_alloc memstick videodev
>> psmouse eeprom_93cx6 videobuf2_vmalloc i2c_algo_bit videobuf2_memops
>> serio_raw rfcomm parport_pc bnep ppdev bluetooth lp parport mxm_wmi
>> acer_wmi sparse_keymap video mac_hid wmi sdhci_pci sdhci r8169
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029]
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] Pid: 13148, comm:
>> gvfsd-trash Not tainted 3.5.0 #2 Acer Aspire 4730Z /Aspire
>> 4730Z
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] RIP:
>> 0010:[<ffffffff811fdb16>] [<ffffffff811fdb16>]
>> ext3_evict_inode+0x46/0x2c0
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] RSP:
>> 0000:ffff8800bb517e48 EFLAGS: 00010287
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] RAX: 0000000000004000
>> RBX: ffff880132d288b0 RCX: ffff88013ff83000
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] RDX: 0000000000000000
>> RSI: 3e772dc354865807 RDI: ffff880132d288b0
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] RBP: ffff8800bb517e68
>> R08: e000000000000000 R09: c038000000000000
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] R10: feaf2dc354865807
>> R11: 7fffffffffffffff R12: 0000000000000000
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] R13: 0000000000000005
>> R14: ffff8801324189a0 R15: ffff8801347336a0
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] FS:
>> 00007f0d9e5247c0(0000) GS:ffff88013fc80000(0000)
>> knlGS:0000000000000000
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] CS: 0010 DS: 0000 ES:
>> 0000 CR0: 0000000080050033
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] CR2: 00000000000001e8
>> CR3: 00000000bb426000 CR4: 00000000000407e0
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] DR0: 0000000000000000
>> DR1: 0000000000000000 DR2: 0000000000000000
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] DR3: 0000000000000000
>> DR6: 00000000ffff0ff0 DR7: 0000000000000400
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] Process gvfsd-trash
>> (pid: 13148, threadinfo ffff8800bb516000, task ffff88013189dcc0)
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] Stack:
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] ffff880132d288b0
>> ffff880132d289e8 ffffffff81824ca0 ffff8801324189a0
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] ffff8800bb517e98
>> ffffffff8119a268 ffff880132d288b0 ffff880132d288b0
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] ffff880132d28938
>> ffffffff81824ca0 ffff8800bb517ec8 ffffffff8119a452
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] Call Trace:
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] [<ffffffff8119a268>]
>> evict+0xb8/0x1c0
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] [<ffffffff8119a452>]
>> iput_final+0xe2/0x1f0
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] [<ffffffff8119a59e>]
>> iput+0x3e/0x50
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] [<ffffffff811c0630>]
>> fsnotify_destroy_mark+0x170/0x180
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] [<ffffffff811c2738>]
>> sys_inotify_rm_watch+0x78/0xd0
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] [<ffffffff8166e569>]
>> system_call_fastpath+0x16/0x1b
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] Code: 48 45 31 e4 45 85
>> ed 0f 84 66 01 00 00 0f b7 03 48 8b 53 28 48 8b 92 70 03 00 00 25 00
>> f0 00 00 3d 00 80 00 00 0f 84 ea 01 00 00 <4c> 8b b2 e8 01 00 00 4c 8d
>> ab 80 01 00 00 4d 85 f6 74 17 3d 00
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] RIP
>> [<ffffffff811fdb16>] ext3_evict_inode+0x46/0x2c0
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] RSP <ffff8800bb517e48>
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.552029] CR2: 00000000000001e8
>> Jul 23 08:45:43 Phrozen kernel: [ 3878.590676] ---[ end trace
>> 3128f11f8290fec4 ]---
>> Jul 23 08:47:11 Phrozen kernel: imklog 5.8.6, log source = /proc/kmsg started.
>> Jul 23 08:47:11 Phrozen rsyslogd: [origin software="rsyslogd"
>> swVersion="5.8.6" x-pid="592" x-info="http://www.rsyslog.com";] start
>> Jul 23 08:47:11 Phrozen rsyslogd: rsyslogd's groupid changed to 103
>> Jul 23 08:47:11 Phrozen rsyslogd: rsyslogd's userid changed to 101
>> Jul 23 08:47:11 Phrozen rsyslogd-2039: Could not open output pipe
>> '/dev/xconsole' [try http://www.rsyslog.com/e/2039 ]
>>
>>
>> CPU-Info
>> processor : 0
>> vendor_id : GenuineIntel
>> cpu family : 6
>> model : 23
>> model name : Pentium(R) Dual-Core CPU T4200 @ 2.00GHz
>> stepping : 10
>> microcode : 0xa07
>> cpu MHz : 2000.000
>> cache size : 1024 KB
>> physical id : 0
>> siblings : 2
>> core id : 0
>> cpu cores : 2
>> apicid : 0
>> initial apicid : 0
>> fpu : yes
>> fpu_exception : yes
>> cpuid level : 13
>> wp : yes
>> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
>> pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
>> lm constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni
>> dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm xsave lahf_lm
>> dtherm
>> bogomips : 3989.98
>> clflush size : 64
>> cache_alignment : 64
>> address sizes : 36 bits physical, 48 bits virtual
>> power management:
>>
>> processor : 1
>> vendor_id : GenuineIntel
>> cpu family : 6
>> model : 23
>> model name : Pentium(R) Dual-Core CPU T4200 @ 2.00GHz
>> stepping : 10
>> microcode : 0xa07
>> cpu MHz : 2000.000
>> cache size : 1024 KB
>> physical id : 0
>> siblings : 2
>> core id : 1
>> cpu cores : 2
>> apicid : 1
>> initial apicid : 1
>> fpu : yes
>> fpu_exception : yes
>> cpuid level : 13
>> wp : yes
>> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
>> pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
>> lm constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni
>> dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm xsave lahf_lm
>> dtherm
>> bogomips : 3989.98
>> clflush size : 64
>> cache_alignment : 64
>> address sizes : 36 bits physical, 48 bits virtual
>> power management:
>>
>>
>> lsusb -vvv output
>>
>>
>> Bus 001 Device 002: ID 064e:a103 Suyin Corp. Acer/HP Integrated Webcam [CN0314]
>> Device Descriptor:
>> bLength 18
>> bDescriptorType 1
>> bcdUSB 2.00
>> bDeviceClass 239 Miscellaneous Device
>> bDeviceSubClass 2 ?
>> bDeviceProtocol 1 Interface Association
>> bMaxPacketSize0 64
>> idVendor 0x064e Suyin Corp.
>> idProduct 0xa103 Acer/HP Integrated Webcam [CN0314]
>> bcdDevice 1.00
>> iManufacturer 2 SuYin
>> iProduct 1 Acer Crystal Eye webcam
>> iSerial 3 CN0314-SN30-OV03-VA-R02.03.02
>> bNumConfigurations 1
>> Configuration Descriptor:
>> bLength 9
>> bDescriptorType 2
>> wTotalLength 544
>> bNumInterfaces 2
>> bConfigurationValue 1
>> iConfiguration 0
>> bmAttributes 0x80
>> (Bus Powered)
>> MaxPower 500mA
>> Interface Association:
>> bLength 8
>> bDescriptorType 11
>> bFirstInterface 0
>> bInterfaceCount 2
>> bFunctionClass 14 Video
>> bFunctionSubClass 3 Video Interface Collection
>> bFunctionProtocol 0
>> iFunction 5 Acer Crystal Eye webcam
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 0
>> bAlternateSetting 0
>> bNumEndpoints 1
>> bInterfaceClass 14 Video
>> bInterfaceSubClass 1 Video Control
>> bInterfaceProtocol 0
>> iInterface 5 Acer Crystal Eye webcam
>> VideoControl Interface Descriptor:
>> bLength 13
>> bDescriptorType 36
>> bDescriptorSubtype 1 (HEADER)
>> bcdUVC 1.00
>> wTotalLength 104
>> dwClockFrequency 15.000000MHz
>> bInCollection 1
>> baInterfaceNr( 0) 1
>> VideoControl Interface Descriptor:
>> bLength 9
>> bDescriptorType 36
>> bDescriptorSubtype 3 (OUTPUT_TERMINAL)
>> bTerminalID 2
>> wTerminalType 0x0101 USB Streaming
>> bAssocTerminal 0
>> bSourceID 5
>> iTerminal 0
>> VideoControl Interface Descriptor:
>> bLength 26
>> bDescriptorType 36
>> bDescriptorSubtype 6 (EXTENSION_UNIT)
>> bUnitID 4
>> guidExtensionCode {7033f028-1163-2e4a-ba2c-6890eb334016}
>> bNumControl 8
>> bNrPins 1
>> baSourceID( 0) 3
>> bControlSize 1
>> bmControls( 0) 0x0f
>> iExtension 0
>> VideoControl Interface Descriptor:
>> bLength 26
>> bDescriptorType 36
>> bDescriptorSubtype 6 (EXTENSION_UNIT)
>> bUnitID 5
>> guidExtensionCode {3fae1228-d7bc-114e-a357-6f1edef7d61d}
>> bNumControl 8
>> bNrPins 1
>> baSourceID( 0) 4
>> bControlSize 1
>> bmControls( 0) 0xff
>> iExtension 0
>> VideoControl Interface Descriptor:
>> bLength 18
>> bDescriptorType 36
>> bDescriptorSubtype 2 (INPUT_TERMINAL)
>> bTerminalID 1
>> wTerminalType 0x0201 Camera Sensor
>> bAssocTerminal 0
>> iTerminal 0
>> wObjectiveFocalLengthMin 0
>> wObjectiveFocalLengthMax 0
>> wOcularFocalLength 0
>> bControlSize 3
>> bmControls 0x00000000
>> VideoControl Interface Descriptor:
>> bLength 12
>> bDescriptorType 36
>> bDescriptorSubtype 5 (PROCESSING_UNIT)
>> Warning: Descriptor too short
>> bUnitID 3
>> bSourceID 1
>> wMaxMultiplier 0
>> bControlSize 3
>> bmControls 0x000025bf
>> Brightness
>> Contrast
>> Hue
>> Saturation
>> Sharpness
>> Gamma
>> White Balance Component
>> Backlight Compensation
>> Power Line Frequency
>> White Balance Component, Auto
>> iProcessing 0
>> bmVideoStandards 0x31
>> None
>> NTSC - 625/50
>> PAL - 525/60
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x83 EP 3 IN
>> bmAttributes 3
>> Transfer Type Interrupt
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0010 1x 16 bytes
>> bInterval 6
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 1
>> bAlternateSetting 0
>> bNumEndpoints 0
>> bInterfaceClass 14 Video
>> bInterfaceSubClass 2 Video Streaming
>> bInterfaceProtocol 0
>> iInterface 0
>> VideoStreaming Interface Descriptor:
>> bLength 14
>> bDescriptorType 36
>> bDescriptorSubtype 1 (INPUT_HEADER)
>> bNumFormats 1
>> wTotalLength 297
>> bEndPointAddress 129
>> bmInfo 0
>> bTerminalLink 2
>> bStillCaptureMethod 0
>> bTriggerSupport 1
>> bTriggerUsage 1
>> bControlSize 1
>> bmaControls( 0) 27
>> VideoStreaming Interface Descriptor:
>> bLength 27
>> bDescriptorType 36
>> bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
>> bFormatIndex 1
>> bNumFrameDescriptors 5
>> guidFormat
>> {59555932-0000-1000-8000-00aa00389b71}
>> bBitsPerPixel 16
>> bDefaultFrameIndex 1
>> bAspectRatioX 0
>> bAspectRatioY 0
>> bmInterlaceFlags 0x00
>> Interlaced stream or variable: No
>> Fields per frame: 2 fields
>> Field 1 first: No
>> Field pattern: Field 1 only
>> bCopyProtect 0
>> VideoStreaming Interface Descriptor:
>> bLength 50
>> bDescriptorType 36
>> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
>> bFrameIndex 1
>> bmCapabilities 0x00
>> Still image unsupported
>> wWidth 640
>> wHeight 480
>> dwMinBitRate 3072000
>> dwMaxBitRate 18432000
>> dwMaxVideoFrameBufferSize 614400
>> dwDefaultFrameInterval 333333
>> bFrameIntervalType 6
>> dwFrameInterval( 0) 333333
>> dwFrameInterval( 1) 400000
>> dwFrameInterval( 2) 500000
>> dwFrameInterval( 3) 666666
>> dwFrameInterval( 4) 1000000
>> dwFrameInterval( 5) 2000000
>> VideoStreaming Interface Descriptor:
>> bLength 50
>> bDescriptorType 36
>> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
>> bFrameIndex 2
>> bmCapabilities 0x00
>> Still image unsupported
>> wWidth 352
>> wHeight 288
>> dwMinBitRate 1013760
>> dwMaxBitRate 6082560
>> dwMaxVideoFrameBufferSize 202752
>> dwDefaultFrameInterval 333333
>> bFrameIntervalType 6
>> dwFrameInterval( 0) 333333
>> dwFrameInterval( 1) 400000
>> dwFrameInterval( 2) 500000
>> dwFrameInterval( 3) 666666
>> dwFrameInterval( 4) 1000000
>> dwFrameInterval( 5) 2000000
>> VideoStreaming Interface Descriptor:
>> bLength 50
>> bDescriptorType 36
>> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
>> bFrameIndex 3
>> bmCapabilities 0x00
>> Still image unsupported
>> wWidth 320
>> wHeight 240
>> dwMinBitRate 768000
>> dwMaxBitRate 4608000
>> dwMaxVideoFrameBufferSize 153600
>> dwDefaultFrameInterval 333333
>> bFrameIntervalType 6
>> dwFrameInterval( 0) 333333
>> dwFrameInterval( 1) 400000
>> dwFrameInterval( 2) 500000
>> dwFrameInterval( 3) 666666
>> dwFrameInterval( 4) 1000000
>> dwFrameInterval( 5) 2000000
>> VideoStreaming Interface Descriptor:
>> bLength 50
>> bDescriptorType 36
>> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
>> bFrameIndex 4
>> bmCapabilities 0x00
>> Still image unsupported
>> wWidth 176
>> wHeight 144
>> dwMinBitRate 253440
>> dwMaxBitRate 1520640
>> dwMaxVideoFrameBufferSize 50688
>> dwDefaultFrameInterval 333333
>> bFrameIntervalType 6
>> dwFrameInterval( 0) 333333
>> dwFrameInterval( 1) 400000
>> dwFrameInterval( 2) 500000
>> dwFrameInterval( 3) 666666
>> dwFrameInterval( 4) 1000000
>> dwFrameInterval( 5) 2000000
>> VideoStreaming Interface Descriptor:
>> bLength 50
>> bDescriptorType 36
>> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
>> bFrameIndex 5
>> bmCapabilities 0x00
>> Still image unsupported
>> wWidth 160
>> wHeight 120
>> dwMinBitRate 192000
>> dwMaxBitRate 1152000
>> dwMaxVideoFrameBufferSize 38400
>> dwDefaultFrameInterval 333333
>> bFrameIntervalType 6
>> dwFrameInterval( 0) 333333
>> dwFrameInterval( 1) 400000
>> dwFrameInterval( 2) 500000
>> dwFrameInterval( 3) 666666
>> dwFrameInterval( 4) 1000000
>> dwFrameInterval( 5) 2000000
>> VideoStreaming Interface Descriptor:
>> bLength 6
>> bDescriptorType 36
>> bDescriptorSubtype 13 (COLORFORMAT)
>> bColorPrimaries 1 (BT.709,sRGB)
>> bTransferCharacteristics 1 (BT.709)
>> bMatrixCoefficients 4 (SMPTE 170M (BT.601))
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 1
>> bAlternateSetting 1
>> bNumEndpoints 1
>> bInterfaceClass 14 Video
>> bInterfaceSubClass 2 Video Streaming
>> bInterfaceProtocol 0
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 5
>> Transfer Type Isochronous
>> Synch Type Asynchronous
>> Usage Type Data
>> wMaxPacketSize 0x0080 1x 128 bytes
>> bInterval 1
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 1
>> bAlternateSetting 2
>> bNumEndpoints 1
>> bInterfaceClass 14 Video
>> bInterfaceSubClass 2 Video Streaming
>> bInterfaceProtocol 0
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 5
>> Transfer Type Isochronous
>> Synch Type Asynchronous
>> Usage Type Data
>> wMaxPacketSize 0x0100 1x 256 bytes
>> bInterval 1
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 1
>> bAlternateSetting 3
>> bNumEndpoints 1
>> bInterfaceClass 14 Video
>> bInterfaceSubClass 2 Video Streaming
>> bInterfaceProtocol 0
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 5
>> Transfer Type Isochronous
>> Synch Type Asynchronous
>> Usage Type Data
>> wMaxPacketSize 0x0320 1x 800 bytes
>> bInterval 1
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 1
>> bAlternateSetting 4
>> bNumEndpoints 1
>> bInterfaceClass 14 Video
>> bInterfaceSubClass 2 Video Streaming
>> bInterfaceProtocol 0
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 5
>> Transfer Type Isochronous
>> Synch Type Asynchronous
>> Usage Type Data
>> wMaxPacketSize 0x0b20 2x 800 bytes
>> bInterval 1
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 1
>> bAlternateSetting 5
>> bNumEndpoints 1
>> bInterfaceClass 14 Video
>> bInterfaceSubClass 2 Video Streaming
>> bInterfaceProtocol 0
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 5
>> Transfer Type Isochronous
>> Synch Type Asynchronous
>> Usage Type Data
>> wMaxPacketSize 0x1320 3x 800 bytes
>> bInterval 1
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 1
>> bAlternateSetting 6
>> bNumEndpoints 1
>> bInterfaceClass 14 Video
>> bInterfaceSubClass 2 Video Streaming
>> bInterfaceProtocol 0
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 5
>> Transfer Type Isochronous
>> Synch Type Asynchronous
>> Usage Type Data
>> wMaxPacketSize 0x1400 3x 1024 bytes
>> bInterval 1
>> Device Qualifier (for other device speed):
>> bLength 10
>> bDescriptorType 6
>> bcdUSB 2.00
>> bDeviceClass 239 Miscellaneous Device
>> bDeviceSubClass 2 ?
>> bDeviceProtocol 1 Interface Association
>> bMaxPacketSize0 64
>> bNumConfigurations 1
>> Device Status: 0x0002
>> (Bus Powered)
>> Remote Wakeup Enabled
>>
>> Bus 002 Device 002: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
>> Device Descriptor:
>> bLength 18
>> bDescriptorType 1
>> bcdUSB 2.00
>> bDeviceClass 9 Hub
>> bDeviceSubClass 0 Unused
>> bDeviceProtocol 1 Single TT
>> bMaxPacketSize0 64
>> idVendor 0x05e3 Genesys Logic, Inc.
>> idProduct 0x0608 USB-2.0 4-Port HUB
>> bcdDevice 77.64
>> iManufacturer 0
>> iProduct 1 USB2.0 Hub
>> iSerial 0
>> bNumConfigurations 1
>> Configuration Descriptor:
>> bLength 9
>> bDescriptorType 2
>> wTotalLength 25
>> bNumInterfaces 1
>> bConfigurationValue 1
>> iConfiguration 0
>> bmAttributes 0xe0
>> Self Powered
>> Remote Wakeup
>> MaxPower 100mA
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 0
>> bAlternateSetting 0
>> bNumEndpoints 1
>> bInterfaceClass 9 Hub
>> bInterfaceSubClass 0 Unused
>> bInterfaceProtocol 0 Full speed (or root) hub
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 3
>> Transfer Type Interrupt
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0001 1x 1 bytes
>> bInterval 12
>> Hub Descriptor:
>> bLength 9
>> bDescriptorType 41
>> nNbrPorts 4
>> wHubCharacteristic 0x00e0
>> Ganged power switching
>> Ganged overcurrent protection
>> TT think time 32 FS bits
>> Port indicators
>> bPwrOn2PwrGood 50 * 2 milli seconds
>> bHubContrCurrent 100 milli Ampere
>> DeviceRemovable 0x00
>> PortPwrCtrlMask 0xff
>> Hub Port Status:
>> Port 1: 0000.0303 lowspeed power enable connect
>> Port 2: 0000.0507 highspeed power suspend enable connect
>> Port 3: 0000.0100 power
>> Port 4: 0000.0103 power enable connect
>> Device Qualifier (for other device speed):
>> bLength 10
>> bDescriptorType 6
>> bcdUSB 2.00
>> bDeviceClass 9 Hub
>> bDeviceSubClass 0 Unused
>> bDeviceProtocol 0 Full speed (or root) hub
>> bMaxPacketSize0 64
>> bNumConfigurations 1
>> Device Status: 0x0001
>> Self Powered
>>
>> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>> Device Descriptor:
>> bLength 18
>> bDescriptorType 1
>> bcdUSB 2.00
>> bDeviceClass 9 Hub
>> bDeviceSubClass 0 Unused
>> bDeviceProtocol 0 Full speed (or root) hub
>> bMaxPacketSize0 64
>> idVendor 0x1d6b Linux Foundation
>> idProduct 0x0002 2.0 root hub
>> bcdDevice 3.05
>> iManufacturer 3 Linux 3.5.0 ehci_hcd
>> iProduct 2 EHCI Host Controller
>> iSerial 1 0000:00:1a.7
>> bNumConfigurations 1
>> Configuration Descriptor:
>> bLength 9
>> bDescriptorType 2
>> wTotalLength 25
>> bNumInterfaces 1
>> bConfigurationValue 1
>> iConfiguration 0
>> bmAttributes 0xe0
>> Self Powered
>> Remote Wakeup
>> MaxPower 0mA
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 0
>> bAlternateSetting 0
>> bNumEndpoints 1
>> bInterfaceClass 9 Hub
>> bInterfaceSubClass 0 Unused
>> bInterfaceProtocol 0 Full speed (or root) hub
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 3
>> Transfer Type Interrupt
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0004 1x 4 bytes
>> bInterval 12
>> Hub Descriptor:
>> bLength 9
>> bDescriptorType 41
>> nNbrPorts 4
>> wHubCharacteristic 0x000a
>> No power switching (usb 1.0)
>> Per-port overcurrent protection
>> bPwrOn2PwrGood 10 * 2 milli seconds
>> bHubContrCurrent 0 milli Ampere
>> DeviceRemovable 0x00
>> PortPwrCtrlMask 0xff
>> Hub Port Status:
>> Port 1: 0000.0503 highspeed power enable connect
>> Port 2: 0000.0100 power
>> Port 3: 0000.0100 power
>> Port 4: 0000.0100 power
>> Device Status: 0x0001
>> Self Powered
>>
>> Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>> Device Descriptor:
>> bLength 18
>> bDescriptorType 1
>> bcdUSB 2.00
>> bDeviceClass 9 Hub
>> bDeviceSubClass 0 Unused
>> bDeviceProtocol 0 Full speed (or root) hub
>> bMaxPacketSize0 64
>> idVendor 0x1d6b Linux Foundation
>> idProduct 0x0002 2.0 root hub
>> bcdDevice 3.05
>> iManufacturer 3 Linux 3.5.0 ehci_hcd
>> iProduct 2 EHCI Host Controller
>> iSerial 1 0000:00:1d.7
>> bNumConfigurations 1
>> Configuration Descriptor:
>> bLength 9
>> bDescriptorType 2
>> wTotalLength 25
>> bNumInterfaces 1
>> bConfigurationValue 1
>> iConfiguration 0
>> bmAttributes 0xe0
>> Self Powered
>> Remote Wakeup
>> MaxPower 0mA
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 0
>> bAlternateSetting 0
>> bNumEndpoints 1
>> bInterfaceClass 9 Hub
>> bInterfaceSubClass 0 Unused
>> bInterfaceProtocol 0 Full speed (or root) hub
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 3
>> Transfer Type Interrupt
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0004 1x 4 bytes
>> bInterval 12
>> Hub Descriptor:
>> bLength 11
>> bDescriptorType 41
>> nNbrPorts 8
>> wHubCharacteristic 0x000a
>> No power switching (usb 1.0)
>> Per-port overcurrent protection
>> bPwrOn2PwrGood 10 * 2 milli seconds
>> bHubContrCurrent 0 milli Ampere
>> DeviceRemovable 0x00 0x00
>> PortPwrCtrlMask 0xff 0xff
>> Hub Port Status:
>> Port 1: 0000.0100 power
>> Port 2: 0000.0100 power
>> Port 3: 0000.0503 highspeed power enable connect
>> Port 4: 0000.0100 power
>> Port 5: 0000.0100 power
>> Port 6: 0000.0100 power
>> Port 7: 0000.0100 power
>> Port 8: 0000.0100 power
>> Device Status: 0x0001
>> Self Powered
>>
>> Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>> Device Descriptor:
>> bLength 18
>> bDescriptorType 1
>> bcdUSB 1.10
>> bDeviceClass 9 Hub
>> bDeviceSubClass 0 Unused
>> bDeviceProtocol 0 Full speed (or root) hub
>> bMaxPacketSize0 64
>> idVendor 0x1d6b Linux Foundation
>> idProduct 0x0001 1.1 root hub
>> bcdDevice 3.05
>> iManufacturer 3 Linux 3.5.0 uhci_hcd
>> iProduct 2 UHCI Host Controller
>> iSerial 1 0000:00:1a.0
>> bNumConfigurations 1
>> Configuration Descriptor:
>> bLength 9
>> bDescriptorType 2
>> wTotalLength 25
>> bNumInterfaces 1
>> bConfigurationValue 1
>> iConfiguration 0
>> bmAttributes 0xe0
>> Self Powered
>> Remote Wakeup
>> MaxPower 0mA
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 0
>> bAlternateSetting 0
>> bNumEndpoints 1
>> bInterfaceClass 9 Hub
>> bInterfaceSubClass 0 Unused
>> bInterfaceProtocol 0 Full speed (or root) hub
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 3
>> Transfer Type Interrupt
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0002 1x 2 bytes
>> bInterval 255
>> Hub Descriptor:
>> bLength 9
>> bDescriptorType 41
>> nNbrPorts 2
>> wHubCharacteristic 0x000a
>> No power switching (usb 1.0)
>> Per-port overcurrent protection
>> bPwrOn2PwrGood 1 * 2 milli seconds
>> bHubContrCurrent 0 milli Ampere
>> DeviceRemovable 0x00
>> PortPwrCtrlMask 0xff
>> Hub Port Status:
>> Port 1: 0000.0100 power
>> Port 2: 0000.0100 power
>> Device Status: 0x0001
>> Self Powered
>>
>> Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>> Device Descriptor:
>> bLength 18
>> bDescriptorType 1
>> bcdUSB 1.10
>> bDeviceClass 9 Hub
>> bDeviceSubClass 0 Unused
>> bDeviceProtocol 0 Full speed (or root) hub
>> bMaxPacketSize0 64
>> idVendor 0x1d6b Linux Foundation
>> idProduct 0x0001 1.1 root hub
>> bcdDevice 3.05
>> iManufacturer 3 Linux 3.5.0 uhci_hcd
>> iProduct 2 UHCI Host Controller
>> iSerial 1 0000:00:1a.1
>> bNumConfigurations 1
>> Configuration Descriptor:
>> bLength 9
>> bDescriptorType 2
>> wTotalLength 25
>> bNumInterfaces 1
>> bConfigurationValue 1
>> iConfiguration 0
>> bmAttributes 0xe0
>> Self Powered
>> Remote Wakeup
>> MaxPower 0mA
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 0
>> bAlternateSetting 0
>> bNumEndpoints 1
>> bInterfaceClass 9 Hub
>> bInterfaceSubClass 0 Unused
>> bInterfaceProtocol 0 Full speed (or root) hub
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 3
>> Transfer Type Interrupt
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0002 1x 2 bytes
>> bInterval 255
>> Hub Descriptor:
>> bLength 9
>> bDescriptorType 41
>> nNbrPorts 2
>> wHubCharacteristic 0x000a
>> No power switching (usb 1.0)
>> Per-port overcurrent protection
>> bPwrOn2PwrGood 1 * 2 milli seconds
>> bHubContrCurrent 0 milli Ampere
>> DeviceRemovable 0x00
>> PortPwrCtrlMask 0xff
>> Hub Port Status:
>> Port 1: 0000.0100 power
>> Port 2: 0000.0100 power
>> Device Status: 0x0001
>> Self Powered
>>
>> Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>> Device Descriptor:
>> bLength 18
>> bDescriptorType 1
>> bcdUSB 1.10
>> bDeviceClass 9 Hub
>> bDeviceSubClass 0 Unused
>> bDeviceProtocol 0 Full speed (or root) hub
>> bMaxPacketSize0 64
>> idVendor 0x1d6b Linux Foundation
>> idProduct 0x0001 1.1 root hub
>> bcdDevice 3.05
>> iManufacturer 3 Linux 3.5.0 uhci_hcd
>> iProduct 2 UHCI Host Controller
>> iSerial 1 0000:00:1d.0
>> bNumConfigurations 1
>> Configuration Descriptor:
>> bLength 9
>> bDescriptorType 2
>> wTotalLength 25
>> bNumInterfaces 1
>> bConfigurationValue 1
>> iConfiguration 0
>> bmAttributes 0xe0
>> Self Powered
>> Remote Wakeup
>> MaxPower 0mA
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 0
>> bAlternateSetting 0
>> bNumEndpoints 1
>> bInterfaceClass 9 Hub
>> bInterfaceSubClass 0 Unused
>> bInterfaceProtocol 0 Full speed (or root) hub
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 3
>> Transfer Type Interrupt
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0002 1x 2 bytes
>> bInterval 255
>> Hub Descriptor:
>> bLength 9
>> bDescriptorType 41
>> nNbrPorts 2
>> wHubCharacteristic 0x000a
>> No power switching (usb 1.0)
>> Per-port overcurrent protection
>> bPwrOn2PwrGood 1 * 2 milli seconds
>> bHubContrCurrent 0 milli Ampere
>> DeviceRemovable 0x00
>> PortPwrCtrlMask 0xff
>> Hub Port Status:
>> Port 1: 0000.0100 power
>> Port 2: 0000.0100 power
>> Device Status: 0x0001
>> Self Powered
>>
>> Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>> Device Descriptor:
>> bLength 18
>> bDescriptorType 1
>> bcdUSB 1.10
>> bDeviceClass 9 Hub
>> bDeviceSubClass 0 Unused
>> bDeviceProtocol 0 Full speed (or root) hub
>> bMaxPacketSize0 64
>> idVendor 0x1d6b Linux Foundation
>> idProduct 0x0001 1.1 root hub
>> bcdDevice 3.05
>> iManufacturer 3 Linux 3.5.0 uhci_hcd
>> iProduct 2 UHCI Host Controller
>> iSerial 1 0000:00:1d.1
>> bNumConfigurations 1
>> Configuration Descriptor:
>> bLength 9
>> bDescriptorType 2
>> wTotalLength 25
>> bNumInterfaces 1
>> bConfigurationValue 1
>> iConfiguration 0
>> bmAttributes 0xe0
>> Self Powered
>> Remote Wakeup
>> MaxPower 0mA
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 0
>> bAlternateSetting 0
>> bNumEndpoints 1
>> bInterfaceClass 9 Hub
>> bInterfaceSubClass 0 Unused
>> bInterfaceProtocol 0 Full speed (or root) hub
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 3
>> Transfer Type Interrupt
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0002 1x 2 bytes
>> bInterval 255
>> Hub Descriptor:
>> bLength 9
>> bDescriptorType 41
>> nNbrPorts 2
>> wHubCharacteristic 0x000a
>> No power switching (usb 1.0)
>> Per-port overcurrent protection
>> bPwrOn2PwrGood 1 * 2 milli seconds
>> bHubContrCurrent 0 milli Ampere
>> DeviceRemovable 0x00
>> PortPwrCtrlMask 0xff
>> Hub Port Status:
>> Port 1: 0000.0100 power
>> Port 2: 0000.0100 power
>> Device Status: 0x0001
>> Self Powered
>>
>> Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>> Device Descriptor:
>> bLength 18
>> bDescriptorType 1
>> bcdUSB 1.10
>> bDeviceClass 9 Hub
>> bDeviceSubClass 0 Unused
>> bDeviceProtocol 0 Full speed (or root) hub
>> bMaxPacketSize0 64
>> idVendor 0x1d6b Linux Foundation
>> idProduct 0x0001 1.1 root hub
>> bcdDevice 3.05
>> iManufacturer 3 Linux 3.5.0 uhci_hcd
>> iProduct 2 UHCI Host Controller
>> iSerial 1 0000:00:1d.2
>> bNumConfigurations 1
>> Configuration Descriptor:
>> bLength 9
>> bDescriptorType 2
>> wTotalLength 25
>> bNumInterfaces 1
>> bConfigurationValue 1
>> iConfiguration 0
>> bmAttributes 0xe0
>> Self Powered
>> Remote Wakeup
>> MaxPower 0mA
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 0
>> bAlternateSetting 0
>> bNumEndpoints 1
>> bInterfaceClass 9 Hub
>> bInterfaceSubClass 0 Unused
>> bInterfaceProtocol 0 Full speed (or root) hub
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 3
>> Transfer Type Interrupt
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0002 1x 2 bytes
>> bInterval 255
>> Hub Descriptor:
>> bLength 9
>> bDescriptorType 41
>> nNbrPorts 2
>> wHubCharacteristic 0x000a
>> No power switching (usb 1.0)
>> Per-port overcurrent protection
>> bPwrOn2PwrGood 1 * 2 milli seconds
>> bHubContrCurrent 0 milli Ampere
>> DeviceRemovable 0x00
>> PortPwrCtrlMask 0xff
>> Hub Port Status:
>> Port 1: 0000.0100 power
>> Port 2: 0000.0100 power
>> Device Status: 0x0001
>> Self Powered
>>
>> Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>> Device Descriptor:
>> bLength 18
>> bDescriptorType 1
>> bcdUSB 1.10
>> bDeviceClass 9 Hub
>> bDeviceSubClass 0 Unused
>> bDeviceProtocol 0 Full speed (or root) hub
>> bMaxPacketSize0 64
>> idVendor 0x1d6b Linux Foundation
>> idProduct 0x0001 1.1 root hub
>> bcdDevice 3.05
>> iManufacturer 3 Linux 3.5.0 uhci_hcd
>> iProduct 2 UHCI Host Controller
>> iSerial 1 0000:00:1d.3
>> bNumConfigurations 1
>> Configuration Descriptor:
>> bLength 9
>> bDescriptorType 2
>> wTotalLength 25
>> bNumInterfaces 1
>> bConfigurationValue 1
>> iConfiguration 0
>> bmAttributes 0xe0
>> Self Powered
>> Remote Wakeup
>> MaxPower 0mA
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 0
>> bAlternateSetting 0
>> bNumEndpoints 1
>> bInterfaceClass 9 Hub
>> bInterfaceSubClass 0 Unused
>> bInterfaceProtocol 0 Full speed (or root) hub
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 3
>> Transfer Type Interrupt
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0002 1x 2 bytes
>> bInterval 255
>> Hub Descriptor:
>> bLength 9
>> bDescriptorType 41
>> nNbrPorts 2
>> wHubCharacteristic 0x000a
>> No power switching (usb 1.0)
>> Per-port overcurrent protection
>> bPwrOn2PwrGood 1 * 2 milli seconds
>> bHubContrCurrent 0 milli Ampere
>> DeviceRemovable 0x00
>> PortPwrCtrlMask 0xff
>> Hub Port Status:
>> Port 1: 0000.0100 power
>> Port 2: 0000.0100 power
>> Device Status: 0x0001
>> Self Powered
>>
>> Bus 002 Device 003: ID 045e:0047 Microsoft Corp. IntelliMouse Explorer 3.0
>> Device Descriptor:
>> bLength 18
>> bDescriptorType 1
>> bcdUSB 1.10
>> bDeviceClass 0 (Defined at Interface level)
>> bDeviceSubClass 0
>> bDeviceProtocol 0
>> bMaxPacketSize0 8
>> idVendor 0x045e Microsoft Corp.
>> idProduct 0x0047 IntelliMouse Explorer 3.0
>> bcdDevice 3.00
>> iManufacturer 1 Microsoft
>> iProduct 3 Microsoft 5-Button Mouse with IntelliEye(TM)
>> iSerial 0
>> bNumConfigurations 1
>> Configuration Descriptor:
>> bLength 9
>> bDescriptorType 2
>> wTotalLength 34
>> bNumInterfaces 1
>> bConfigurationValue 1
>> iConfiguration 0
>> bmAttributes 0xa0
>> (Bus Powered)
>> Remote Wakeup
>> MaxPower 100mA
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 0
>> bAlternateSetting 0
>> bNumEndpoints 1
>> bInterfaceClass 3 Human Interface Device
>> bInterfaceSubClass 1 Boot Interface Subclass
>> bInterfaceProtocol 2 Mouse
>> iInterface 0
>> HID Device Descriptor:
>> bLength 9
>> bDescriptorType 33
>> bcdHID 1.10
>> bCountryCode 0 Not supported
>> bNumDescriptors 1
>> bDescriptorType 34 Report
>> wDescriptorLength 72
>> Report Descriptors:
>> ** UNAVAILABLE **
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 3
>> Transfer Type Interrupt
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0004 1x 4 bytes
>> bInterval 10
>> Device Status: 0x0000
>> (Bus Powered)
>>
>> Bus 002 Device 004: ID 0c45:62e0 Microdia MSI Starcam Racer
>> Device Descriptor:
>> bLength 18
>> bDescriptorType 1
>> bcdUSB 2.00
>> bDeviceClass 239 Miscellaneous Device
>> bDeviceSubClass 2 ?
>> bDeviceProtocol 1 Interface Association
>> bMaxPacketSize0 64
>> idVendor 0x0c45 Microdia
>> idProduct 0x62e0 MSI Starcam Racer
>> bcdDevice 1.00
>> iManufacturer 2 Sonix Technology Co., Ltd.
>> iProduct 1 USB 2.0 Camera
>> iSerial 0
>> bNumConfigurations 1
>> Configuration Descriptor:
>> bLength 9
>> bDescriptorType 2
>> wTotalLength 1051
>> bNumInterfaces 4
>> bConfigurationValue 1
>> iConfiguration 0
>> bmAttributes 0x80
>> (Bus Powered)
>> MaxPower 250mA
>> Interface Association:
>> bLength 8
>> bDescriptorType 11
>> bFirstInterface 0
>> bInterfaceCount 2
>> bFunctionClass 14 Video
>> bFunctionSubClass 3 Video Interface Collection
>> bFunctionProtocol 0
>> iFunction 5 USB Camera
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 0
>> bAlternateSetting 0
>> bNumEndpoints 1
>> bInterfaceClass 14 Video
>> bInterfaceSubClass 1 Video Control
>> bInterfaceProtocol 0
>> iInterface 5 USB Camera
>> VideoControl Interface Descriptor:
>> bLength 13
>> bDescriptorType 36
>> bDescriptorSubtype 1 (HEADER)
>> bcdUVC 1.00
>> wTotalLength 103
>> dwClockFrequency 15.000000MHz
>> bInCollection 1
>> baInterfaceNr( 0) 1
>> VideoControl Interface Descriptor:
>> bLength 9
>> bDescriptorType 36
>> bDescriptorSubtype 3 (OUTPUT_TERMINAL)
>> bTerminalID 2
>> wTerminalType 0x0101 USB Streaming
>> bAssocTerminal 0
>> bSourceID 5
>> iTerminal 0
>> VideoControl Interface Descriptor:
>> bLength 26
>> bDescriptorType 36
>> bDescriptorSubtype 6 (EXTENSION_UNIT)
>> bUnitID 4
>> guidExtensionCode {7033f028-1163-2e4a-ba2c-6890eb334016}
>> bNumControl 8
>> bNrPins 1
>> baSourceID( 0) 3
>> bControlSize 1
>> bmControls( 0) 0x3f
>> iExtension 0
>> VideoControl Interface Descriptor:
>> bLength 26
>> bDescriptorType 36
>> bDescriptorSubtype 6 (EXTENSION_UNIT)
>> bUnitID 5
>> guidExtensionCode {3fae1228-d7bc-114e-a357-6f1edef7d61d}
>> bNumControl 8
>> bNrPins 1
>> baSourceID( 0) 4
>> bControlSize 1
>> bmControls( 0) 0x00
>> iExtension 0
>> VideoControl Interface Descriptor:
>> bLength 18
>> bDescriptorType 36
>> bDescriptorSubtype 2 (INPUT_TERMINAL)
>> bTerminalID 1
>> wTerminalType 0x0201 Camera Sensor
>> bAssocTerminal 0
>> iTerminal 0
>> wObjectiveFocalLengthMin 0
>> wObjectiveFocalLengthMax 0
>> wOcularFocalLength 0
>> bControlSize 3
>> bmControls 0x0002002e
>> Auto-Exposure Mode
>> Auto-Exposure Priority
>> Exposure Time (Absolute)
>> Focus (Absolute)
>> Focus, Auto
>> VideoControl Interface Descriptor:
>> bLength 11
>> bDescriptorType 36
>> bDescriptorSubtype 5 (PROCESSING_UNIT)
>> Warning: Descriptor too short
>> bUnitID 3
>> bSourceID 1
>> wMaxMultiplier 0
>> bControlSize 2
>> bmControls 0x0000177f
>> Brightness
>> Contrast
>> Hue
>> Saturation
>> Sharpness
>> Gamma
>> White Balance Temperature
>> Backlight Compensation
>> Gain
>> Power Line Frequency
>> White Balance Temperature, Auto
>> iProcessing 0
>> bmVideoStandards 0x 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x83 EP 3 IN
>> bmAttributes 3
>> Transfer Type Interrupt
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0010 1x 16 bytes
>> bInterval 6
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 1
>> bAlternateSetting 0
>> bNumEndpoints 0
>> bInterfaceClass 14 Video
>> bInterfaceSubClass 2 Video Streaming
>> bInterfaceProtocol 0
>> iInterface 0
>> VideoStreaming Interface Descriptor:
>> bLength 15
>> bDescriptorType 36
>> bDescriptorSubtype 1 (INPUT_HEADER)
>> bNumFormats 2
>> wTotalLength 692
>> bEndPointAddress 129
>> bmInfo 0
>> bTerminalLink 2
>> bStillCaptureMethod 2
>> bTriggerSupport 1
>> bTriggerUsage 1
>> bControlSize 1
>> bmaControls( 0) 27
>> bmaControls( 1) 27
>> VideoStreaming Interface Descriptor:
>> bLength 27
>> bDescriptorType 36
>> bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
>> bFormatIndex 1
>> bNumFrameDescriptors 6
>> guidFormat
>> {59555932-0000-1000-8000-00aa00389b71}
>> bBitsPerPixel 16
>> bDefaultFrameIndex 1
>> bAspectRatioX 0
>> bAspectRatioY 0
>> bmInterlaceFlags 0x00
>> Interlaced stream or variable: No
>> Fields per frame: 2 fields
>> Field 1 first: No
>> Field pattern: Field 1 only
>> bCopyProtect 0
>> VideoStreaming Interface Descriptor:
>> bLength 50
>> bDescriptorType 36
>> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
>> bFrameIndex 1
>> bmCapabilities 0x00
>> Still image unsupported
>> wWidth 640
>> wHeight 480
>> dwMinBitRate 3072000
>> dwMaxBitRate 18432000
>> dwMaxVideoFrameBufferSize 614400
>> dwDefaultFrameInterval 333333
>> bFrameIntervalType 6
>> dwFrameInterval( 0) 333333
>> dwFrameInterval( 1) 400000
>> dwFrameInterval( 2) 500000
>> dwFrameInterval( 3) 666666
>> dwFrameInterval( 4) 1000000
>> dwFrameInterval( 5) 2000000
>> VideoStreaming Interface Descriptor:
>> bLength 50
>> bDescriptorType 36
>> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
>> bFrameIndex 2
>> bmCapabilities 0x00
>> Still image unsupported
>> wWidth 352
>> wHeight 288
>> dwMinBitRate 1013760
>> dwMaxBitRate 6082560
>> dwMaxVideoFrameBufferSize 202752
>> dwDefaultFrameInterval 333333
>> bFrameIntervalType 6
>> dwFrameInterval( 0) 333333
>> dwFrameInterval( 1) 400000
>> dwFrameInterval( 2) 500000
>> dwFrameInterval( 3) 666666
>> dwFrameInterval( 4) 1000000
>> dwFrameInterval( 5) 2000000
>> VideoStreaming Interface Descriptor:
>> bLength 50
>> bDescriptorType 36
>> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
>> bFrameIndex 3
>> bmCapabilities 0x00
>> Still image unsupported
>> wWidth 320
>> wHeight 240
>> dwMinBitRate 768000
>> dwMaxBitRate 4608000
>> dwMaxVideoFrameBufferSize 153600
>> dwDefaultFrameInterval 333333
>> bFrameIntervalType 6
>> dwFrameInterval( 0) 333333
>> dwFrameInterval( 1) 400000
>> dwFrameInterval( 2) 500000
>> dwFrameInterval( 3) 666666
>> dwFrameInterval( 4) 1000000
>> dwFrameInterval( 5) 2000000
>> VideoStreaming Interface Descriptor:
>> bLength 50
>> bDescriptorType 36
>> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
>> bFrameIndex 4
>> bmCapabilities 0x00
>> Still image unsupported
>> wWidth 176
>> wHeight 144
>> dwMinBitRate 253440
>> dwMaxBitRate 1520640
>> dwMaxVideoFrameBufferSize 50688
>> dwDefaultFrameInterval 333333
>> bFrameIntervalType 6
>> dwFrameInterval( 0) 333333
>> dwFrameInterval( 1) 400000
>> dwFrameInterval( 2) 500000
>> dwFrameInterval( 3) 666666
>> dwFrameInterval( 4) 1000000
>> dwFrameInterval( 5) 2000000
>> VideoStreaming Interface Descriptor:
>> bLength 50
>> bDescriptorType 36
>> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
>> bFrameIndex 5
>> bmCapabilities 0x00
>> Still image unsupported
>> wWidth 160
>> wHeight 120
>> dwMinBitRate 192000
>> dwMaxBitRate 1152000
>> dwMaxVideoFrameBufferSize 38400
>> dwDefaultFrameInterval 333333
>> bFrameIntervalType 6
>> dwFrameInterval( 0) 333333
>> dwFrameInterval( 1) 400000
>> dwFrameInterval( 2) 500000
>> dwFrameInterval( 3) 666666
>> dwFrameInterval( 4) 1000000
>> dwFrameInterval( 5) 2000000
>> VideoStreaming Interface Descriptor:
>> bLength 34
>> bDescriptorType 36
>> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
>> bFrameIndex 6
>> bmCapabilities 0x00
>> Still image unsupported
>> wWidth 1280
>> wHeight 1024
>> dwMinBitRate 13107200
>> dwMaxBitRate 23592960
>> dwMaxVideoFrameBufferSize 2621440
>> dwDefaultFrameInterval 1111111
>> bFrameIntervalType 2
>> dwFrameInterval( 0) 1111111
>> dwFrameInterval( 1) 2000000
>> VideoStreaming Interface Descriptor:
>> bLength 30
>> bDescriptorType 36
>> bDescriptorSubtype 3 (STILL_IMAGE_FRAME)
>> bEndpointAddress 0
>> bNumImageSizePatterns 6
>> wWidth( 0) 1280
>> wHeight( 0) 1024
>> wWidth( 1) 640
>> wHeight( 1) 480
>> wWidth( 2) 352
>> wHeight( 2) 288
>> wWidth( 3) 320
>> wHeight( 3) 240
>> wWidth( 4) 176
>> wHeight( 4) 144
>> wWidth( 5) 160
>> wHeight( 5) 120
>> bNumCompressionPatterns 6
>> VideoStreaming Interface Descriptor:
>> bLength 11
>> bDescriptorType 36
>> bDescriptorSubtype 6 (FORMAT_MJPEG)
>> bFormatIndex 2
>> bNumFrameDescriptors 6
>> bFlags 0
>> Fixed-size samples: No
>> bDefaultFrameIndex 1
>> bAspectRatioX 0
>> bAspectRatioY 0
>> bmInterlaceFlags 0x00
>> Interlaced stream or variable: No
>> Fields per frame: 1 fields
>> Field 1 first: No
>> Field pattern: Field 1 only
>> bCopyProtect 0
>> VideoStreaming Interface Descriptor:
>> bLength 50
>> bDescriptorType 36
>> bDescriptorSubtype 7 (FRAME_MJPEG)
>> bFrameIndex 1
>> bmCapabilities 0x00
>> Still image unsupported
>> wWidth 640
>> wHeight 480
>> dwMinBitRate 384000
>> dwMaxBitRate 2304000
>> dwMaxVideoFrameBufferSize 76800
>> dwDefaultFrameInterval 333333
>> bFrameIntervalType 6
>> dwFrameInterval( 0) 333333
>> dwFrameInterval( 1) 400000
>> dwFrameInterval( 2) 500000
>> dwFrameInterval( 3) 666666
>> dwFrameInterval( 4) 1000000
>> dwFrameInterval( 5) 2000000
>> VideoStreaming Interface Descriptor:
>> bLength 50
>> bDescriptorType 36
>> bDescriptorSubtype 7 (FRAME_MJPEG)
>> bFrameIndex 2
>> bmCapabilities 0x00
>> Still image unsupported
>> wWidth 352
>> wHeight 288
>> dwMinBitRate 126720
>> dwMaxBitRate 760320
>> dwMaxVideoFrameBufferSize 25344
>> dwDefaultFrameInterval 333333
>> bFrameIntervalType 6
>> dwFrameInterval( 0) 333333
>> dwFrameInterval( 1) 400000
>> dwFrameInterval( 2) 500000
>> dwFrameInterval( 3) 666666
>> dwFrameInterval( 4) 1000000
>> dwFrameInterval( 5) 2000000
>> VideoStreaming Interface Descriptor:
>> bLength 50
>> bDescriptorType 36
>> bDescriptorSubtype 7 (FRAME_MJPEG)
>> bFrameIndex 3
>> bmCapabilities 0x00
>> Still image unsupported
>> wWidth 320
>> wHeight 240
>> dwMinBitRate 96000
>> dwMaxBitRate 576000
>> dwMaxVideoFrameBufferSize 19200
>> dwDefaultFrameInterval 333333
>> bFrameIntervalType 6
>> dwFrameInterval( 0) 333333
>> dwFrameInterval( 1) 400000
>> dwFrameInterval( 2) 500000
>> dwFrameInterval( 3) 666666
>> dwFrameInterval( 4) 1000000
>> dwFrameInterval( 5) 2000000
>> VideoStreaming Interface Descriptor:
>> bLength 50
>> bDescriptorType 36
>> bDescriptorSubtype 7 (FRAME_MJPEG)
>> bFrameIndex 4
>> bmCapabilities 0x00
>> Still image unsupported
>> wWidth 176
>> wHeight 144
>> dwMinBitRate 31680
>> dwMaxBitRate 190080
>> dwMaxVideoFrameBufferSize 6336
>> dwDefaultFrameInterval 333333
>> bFrameIntervalType 6
>> dwFrameInterval( 0) 333333
>> dwFrameInterval( 1) 400000
>> dwFrameInterval( 2) 500000
>> dwFrameInterval( 3) 666666
>> dwFrameInterval( 4) 1000000
>> dwFrameInterval( 5) 2000000
>> VideoStreaming Interface Descriptor:
>> bLength 50
>> bDescriptorType 36
>> bDescriptorSubtype 7 (FRAME_MJPEG)
>> bFrameIndex 5
>> bmCapabilities 0x00
>> Still image unsupported
>> wWidth 160
>> wHeight 120
>> dwMinBitRate 24000
>> dwMaxBitRate 144000
>> dwMaxVideoFrameBufferSize 4800
>> dwDefaultFrameInterval 333333
>> bFrameIntervalType 6
>> dwFrameInterval( 0) 333333
>> dwFrameInterval( 1) 400000
>> dwFrameInterval( 2) 500000
>> dwFrameInterval( 3) 666666
>> dwFrameInterval( 4) 1000000
>> dwFrameInterval( 5) 2000000
>> VideoStreaming Interface Descriptor:
>> bLength 38
>> bDescriptorType 36
>> bDescriptorSubtype 7 (FRAME_MJPEG)
>> bFrameIndex 6
>> bmCapabilities 0x00
>> Still image unsupported
>> wWidth 1280
>> wHeight 1024
>> dwMinBitRate 1638400
>> dwMaxBitRate 4915200
>> dwMaxVideoFrameBufferSize 327680
>> dwDefaultFrameInterval 666666
>> bFrameIntervalType 3
>> dwFrameInterval( 0) 666666
>> dwFrameInterval( 1) 1000000
>> dwFrameInterval( 2) 2000000
>> VideoStreaming Interface Descriptor:
>> bLength 31
>> bDescriptorType 36
>> bDescriptorSubtype 3 (STILL_IMAGE_FRAME)
>> bEndpointAddress 0
>> bNumImageSizePatterns 6
>> wWidth( 0) 1280
>> wHeight( 0) 1024
>> wWidth( 1) 640
>> wHeight( 1) 480
>> wWidth( 2) 352
>> wHeight( 2) 288
>> wWidth( 3) 320
>> wHeight( 3) 240
>> wWidth( 4) 176
>> wHeight( 4) 144
>> wWidth( 5) 160
>> wHeight( 5) 120
>> bNumCompressionPatterns 6
>> bCompression( 0) 0
>> VideoStreaming Interface Descriptor:
>> bLength 6
>> bDescriptorType 36
>> bDescriptorSubtype 13 (COLORFORMAT)
>> bColorPrimaries 1 (BT.709,sRGB)
>> bTransferCharacteristics 1 (BT.709)
>> bMatrixCoefficients 4 (SMPTE 170M (BT.601))
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 1
>> bAlternateSetting 1
>> bNumEndpoints 1
>> bInterfaceClass 14 Video
>> bInterfaceSubClass 2 Video Streaming
>> bInterfaceProtocol 0
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 5
>> Transfer Type Isochronous
>> Synch Type Asynchronous
>> Usage Type Data
>> wMaxPacketSize 0x0080 1x 128 bytes
>> bInterval 1
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 1
>> bAlternateSetting 2
>> bNumEndpoints 1
>> bInterfaceClass 14 Video
>> bInterfaceSubClass 2 Video Streaming
>> bInterfaceProtocol 0
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 5
>> Transfer Type Isochronous
>> Synch Type Asynchronous
>> Usage Type Data
>> wMaxPacketSize 0x0100 1x 256 bytes
>> bInterval 1
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 1
>> bAlternateSetting 3
>> bNumEndpoints 1
>> bInterfaceClass 14 Video
>> bInterfaceSubClass 2 Video Streaming
>> bInterfaceProtocol 0
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 5
>> Transfer Type Isochronous
>> Synch Type Asynchronous
>> Usage Type Data
>> wMaxPacketSize 0x0320 1x 800 bytes
>> bInterval 1
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 1
>> bAlternateSetting 4
>> bNumEndpoints 1
>> bInterfaceClass 14 Video
>> bInterfaceSubClass 2 Video Streaming
>> bInterfaceProtocol 0
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 5
>> Transfer Type Isochronous
>> Synch Type Asynchronous
>> Usage Type Data
>> wMaxPacketSize 0x0b20 2x 800 bytes
>> bInterval 1
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 1
>> bAlternateSetting 5
>> bNumEndpoints 1
>> bInterfaceClass 14 Video
>> bInterfaceSubClass 2 Video Streaming
>> bInterfaceProtocol 0
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 5
>> Transfer Type Isochronous
>> Synch Type Asynchronous
>> Usage Type Data
>> wMaxPacketSize 0x1320 3x 800 bytes
>> bInterval 1
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 1
>> bAlternateSetting 6
>> bNumEndpoints 1
>> bInterfaceClass 14 Video
>> bInterfaceSubClass 2 Video Streaming
>> bInterfaceProtocol 0
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 5
>> Transfer Type Isochronous
>> Synch Type Asynchronous
>> Usage Type Data
>> wMaxPacketSize 0x1400 3x 1024 bytes
>> bInterval 1
>> Interface Association:
>> bLength 8
>> bDescriptorType 11
>> bFirstInterface 2
>> bInterfaceCount 2
>> bFunctionClass 1 Audio
>> bFunctionSubClass 0
>> bFunctionProtocol 0
>> iFunction 4 USB Audio Device
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 2
>> bAlternateSetting 0
>> bNumEndpoints 0
>> bInterfaceClass 1 Audio
>> bInterfaceSubClass 1 Control Device
>> bInterfaceProtocol 0
>> iInterface 4 USB Audio Device
>> AudioControl Interface Descriptor:
>> bLength 9
>> bDescriptorType 36
>> bDescriptorSubtype 1 (HEADER)
>> bcdADC 1.00
>> wTotalLength 41
>> bInCollection 1
>> baInterfaceNr( 0) 3
>> AudioControl Interface Descriptor:
>> bLength 12
>> bDescriptorType 36
>> bDescriptorSubtype 2 (INPUT_TERMINAL)
>> bTerminalID 1
>> wTerminalType 0x0201 Microphone
>> bAssocTerminal 0
>> bNrChannels 1
>> wChannelConfig 0x0000
>> iChannelNames 0
>> iTerminal 0
>> AudioControl Interface Descriptor:
>> bLength 11
>> bDescriptorType 36
>> bDescriptorSubtype 6 (FEATURE_UNIT)
>> bUnitID 2
>> bSourceID 1
>> bControlSize 2
>> bmaControls( 0) 0x01
>> bmaControls( 0) 0x00
>> Mute Control
>> bmaControls( 1) 0x02
>> bmaControls( 1) 0x00
>> Volume Control
>> iFeature 0
>> AudioControl Interface Descriptor:
>> bLength 9
>> bDescriptorType 36
>> bDescriptorSubtype 3 (OUTPUT_TERMINAL)
>> bTerminalID 3
>> wTerminalType 0x0101 USB Streaming
>> bAssocTerminal 0
>> bSourceID 2
>> iTerminal 0
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 3
>> bAlternateSetting 0
>> bNumEndpoints 0
>> bInterfaceClass 1 Audio
>> bInterfaceSubClass 2 Streaming
>> bInterfaceProtocol 0
>> iInterface 0
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 3
>> bAlternateSetting 1
>> bNumEndpoints 1
>> bInterfaceClass 1 Audio
>> bInterfaceSubClass 2 Streaming
>> bInterfaceProtocol 0
>> iInterface 0
>> AudioStreaming Interface Descriptor:
>> bLength 7
>> bDescriptorType 36
>> bDescriptorSubtype 1 (AS_GENERAL)
>> bTerminalLink 3
>> bDelay 1 frames
>> wFormatTag 1 PCM
>> AudioStreaming Interface Descriptor:
>> bLength 14
>> bDescriptorType 36
>> bDescriptorSubtype 2 (FORMAT_TYPE)
>> bFormatType 1 (FORMAT_TYPE_I)
>> bNrChannels 1
>> bSubframeSize 2
>> bBitResolution 16
>> bSamFreqType 2 Discrete
>> tSamFreq[ 0] 8000
>> tSamFreq[ 1] 16000
>> Endpoint Descriptor:
>> bLength 9
>> bDescriptorType 5
>> bEndpointAddress 0x84 EP 4 IN
>> bmAttributes 5
>> Transfer Type Isochronous
>> Synch Type Asynchronous
>> Usage Type Data
>> wMaxPacketSize 0x0190 1x 400 bytes
>> bInterval 4
>> bRefresh 0
>> bSynchAddress 0
>> AudioControl Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 37
>> bDescriptorSubtype 1 (EP_GENERAL)
>> bmAttributes 0x01
>> Sampling Frequency
>> bLockDelayUnits 0 Undefined
>> wLockDelay 0 Undefined
>> Device Qualifier (for other device speed):
>> bLength 10
>> bDescriptorType 6
>> bcdUSB 2.00
>> bDeviceClass 239 Miscellaneous Device
>> bDeviceSubClass 2 ?
>> bDeviceProtocol 1 Interface Association
>> bMaxPacketSize0 64
>> bNumConfigurations 1
>> Device Status: 0x0002
>> (Bus Powered)
>> Remote Wakeup Enabled
>>
>> Bus 002 Device 005: ID 03eb:0902 Atmel Corp. 4-Port Hub
>> Device Descriptor:
>> bLength 18
>> bDescriptorType 1
>> bcdUSB 1.10
>> bDeviceClass 9 Hub
>> bDeviceSubClass 0 Unused
>> bDeviceProtocol 0 Full speed (or root) hub
>> bMaxPacketSize0 8
>> idVendor 0x03eb Atmel Corp.
>> idProduct 0x0902 4-Port Hub
>> bcdDevice 1.00
>> iManufacturer 0
>> iProduct 2 USB 2.0 Hub
>> iSerial 0
>> bNumConfigurations 1
>> Configuration Descriptor:
>> bLength 9
>> bDescriptorType 2
>> wTotalLength 34
>> bNumInterfaces 1
>> bConfigurationValue 1
>> iConfiguration 0
>> bmAttributes 0xe0
>> Self Powered
>> Remote Wakeup
>> MaxPower 100mA
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 0
>> bAlternateSetting 0
>> bNumEndpoints 1
>> bInterfaceClass 9 Hub
>> bInterfaceSubClass 0 Unused
>> bInterfaceProtocol 0 Full speed (or root) hub
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 3
>> Transfer Type Interrupt
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0001 1x 1 bytes
>> bInterval 255
>> ** UNRECOGNIZED: 09 29 04 09 00 32 64 00 1e
>> Hub Descriptor:
>> bLength 9
>> bDescriptorType 41
>> nNbrPorts 4
>> wHubCharacteristic 0x0009
>> Per-port power switching
>> Per-port overcurrent protection
>> bPwrOn2PwrGood 50 * 2 milli seconds
>> bHubContrCurrent 100 milli Ampere
>> DeviceRemovable 0x00
>> PortPwrCtrlMask 0x1e
>> Hub Port Status:
>> Port 1: 0000.0303 lowspeed power enable connect
>> Port 2: 0000.0100 power
>> Port 3: 0000.0100 power
>> Port 4: 0000.0100 power
>> Device Status: 0x0001
>> Self Powered
>>
>> Bus 002 Device 006: ID 413c:2003 Dell Computer Corp. Keyboard
>> Device Descriptor:
>> bLength 18
>> bDescriptorType 1
>> bcdUSB 1.10
>> bDeviceClass 0 (Defined at Interface level)
>> bDeviceSubClass 0
>> bDeviceProtocol 0
>> bMaxPacketSize0 8
>> idVendor 0x413c Dell Computer Corp.
>> idProduct 0x2003 Keyboard
>> bcdDevice 3.06
>> iManufacturer 1 Dell
>> iProduct 2
>> iSerial 0
>> bNumConfigurations 1
>> Configuration Descriptor:
>> bLength 9
>> bDescriptorType 2
>> wTotalLength 34
>> bNumInterfaces 1
>> bConfigurationValue 1
>> iConfiguration 0
>> bmAttributes 0xa0
>> (Bus Powered)
>> Remote Wakeup
>> MaxPower 70mA
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 0
>> bAlternateSetting 0
>> bNumEndpoints 1
>> bInterfaceClass 3 Human Interface Device
>> bInterfaceSubClass 1 Boot Interface Subclass
>> bInterfaceProtocol 1 Keyboard
>> iInterface 0
>> HID Device Descriptor:
>> bLength 9
>> bDescriptorType 33
>> bcdHID 1.10
>> bCountryCode 0 Not supported
>> bNumDescriptors 1
>> bDescriptorType 34 Report
>> wDescriptorLength 65
>> Report Descriptors:
>> ** UNAVAILABLE **
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 3
>> Transfer Type Interrupt
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0008 1x 8 bytes
>> bInterval 24
>> Device Status: 0x0000
>> (Bus Powered)
>>
>> --
>> Regards,
>> Sarbojit
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
>> the body of a message to majordomo@xxxxxxxxxxxxxxx
>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>> Please read the FAQ at http://www.tux.org/lkml/
>>
>
>

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Regards,
Sarbojit
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