Re: [PATCH 2.6] USB_GADGET depends on USB
From: Greg KH
Date: Wed Mar 03 2004 - 12:21:45 EST
On Wed, Mar 03, 2004 at 04:45:47PM +0100, Jakub Bogusz wrote:
> On Wed, Mar 03, 2004 at 07:27:40AM -0800, Greg KH wrote:
> > On Wed, Mar 03, 2004 at 02:57:56PM +0100, Jakub Bogusz wrote:
> > > Up to current cset it's possible to select USB_GADGET even if USB is
> > > disabled (causing only compilation errors). This patch adds depends
> > > rules to disallow USB_GADGET if USB is not enabled (similar to those
> > > found in other drivers/usb/*/Kconfig files).
> >
> > But why would you want to do that? You can have a box with USB gadget
> > support but not USB "host" support on it just fine.
> >
> > This patch is not correct, nor needed.
>
> Now I know, David Brownell already explained it to me.
>
> It was because make (old)config) asks questions about USB_GADGET,
> USB_ETH, USB_FILE_STORAGE, USB_G_SERIAL, USB_ZERO, USB_GADGETFS even on
> platforms where no USB peripheral controller is available (like sparc32) -
> which make no sense as none of them can be built without any
> CONFIG_USB_GADGET_*.
> These options could be omitted on such platforms...
Hm, does the following patch help this any? I don't see that it should,
but who knows...
thanks,
greg k-h
# USB Gadget: clean up the Kconfig dependancies a bit more.
diff -Nru a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
--- a/drivers/usb/gadget/Kconfig Wed Mar 3 09:17:12 2004
+++ b/drivers/usb/gadget/Kconfig Wed Mar 3 09:17:12 2004
@@ -42,7 +42,7 @@
config USB_GADGET_NET2280
boolean "NetChip 2280"
- depends on PCI
+ depends on USB_GADGET && PCI
help
NetChip 2280 is a PCI based USB peripheral controller which
supports both full and high speed USB 2.0 data transfers.
@@ -62,7 +62,7 @@
config USB_GADGET_PXA2XX
boolean "PXA 2xx or IXP 42x"
- depends on ARCH_PXA || ARCH_IXP425
+ depends on USB_GADGET && (ARCH_PXA || ARCH_IXP425)
help
Intel's PXA 2xx series XScale ARM-5TE processors include
an integrated full speed USB 1.1 device controller. The
@@ -91,7 +91,7 @@
config USB_GADGET_GOKU
boolean "Toshiba TC86C001 'Goku-S'"
- depends on PCI
+ depends on USB_GADGET && PCI
help
The Toshiba TC86C001 is a PCI device which includes controllers
for full speed USB devices, IDE, I2C, SIO, plus a USB host (OHCI).
@@ -111,7 +111,7 @@
# this could be built elsewhere (doesn't yet exist)
config USB_GADGET_SA1100
boolean "SA 1100"
- depends on ARCH_SA1100
+ depends on USB_GADGET && ARCH_SA1100
help
Intel's SA-1100 is an ARM-4 processor with an integrated
full speed USB 1.1 device controller.
@@ -139,7 +139,7 @@
config USB_ZERO
tristate "Gadget Zero (DEVELOPMENT)"
- depends on EXPERIMENTAL
+ depends on USB_GADGET && EXPERIMENTAL
help
Gadget Zero is a two-configuration device. It either sinks and
sources bulk data; or it loops back a configurable number of
@@ -164,7 +164,7 @@
config USB_ETH
tristate "Ethernet Gadget"
- depends on NET
+ depends on USB_GADGET && NET
help
This driver implements Ethernet style communication, in either
of two ways:
@@ -192,7 +192,7 @@
config USB_GADGETFS
tristate "Gadget Filesystem (EXPERIMENTAL)"
- depends on EXPERIMENTAL
+ depends on USB_GADGET && EXPERIMENTAL
help
This driver provides a filesystem based API that lets user mode
programs implement a single-configuration USB device, including
@@ -206,7 +206,7 @@
config USB_FILE_STORAGE
tristate "File-backed Storage Gadget (DEVELOPMENT)"
# we don't support the SA1100 because of its limitations
- depends on USB_GADGET_SA1100 = n
+ depends on USB_GADGET && USB_GADGET_SA1100 = n
help
The File-backed Storage Gadget acts as a USB Mass Storage
disk drive. As its storage repository it can use a regular
@@ -228,6 +228,7 @@
config USB_G_SERIAL
tristate "Serial Gadget"
+ depends on USB_GADGET
help
The Serial Gadget talks to the Linux-USB generic serial driver.
-
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