Re: HP CDRW CD4E hasn't worked since 2.6.11

From: Daniel Drake
Date: Tue Mar 14 2006 - 18:00:27 EST


Greg KH wrote:
On Tue, Mar 14, 2006 at 02:25:39PM +1100, Peter Chubb wrote:
Hi Greg,
The changes to the usb/storage/shuttle_usbat.c to accomodate
flash drives appears to have broken CD R/W support.

Sorry it took me so long to report this; I don't use this particular
device very often.

Compiling with verbose debug shows that the IDENTIFY_PACKET_DEVICE
command is failing, so the device is mis-identified as a flash drive.

I went to the start of the Git history in Linus's tree; 2.6.12 also
fails.

I think it may have worked for you on-and-off in the middle of those changes. It's been a nightmare trying to get both device types identified correctly.

I tried to force the detection, to see if I could get past that point,
but there are still problems -- see the attached logs -- the device is
recognised as a scsi disk not cdrom.

Can you detail your changes? I'm not convinced by this, because I have been careful not to change any HP8200-specific code (except the detection), and also, I don't think it is possible for the device to appear as a disk if the HP8200 codepath is being followed.

There was one other report of this but my emails to that reporter were bouncing so I left this in my todo mailbox.

Daniel
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