Commit Graph

457 Commits

Author SHA1 Message Date
Richard Röjfors
ff3495052a USB: gadget rndis: send notifications
It turns out that atomic_inc_return() returns the *new* value
not the original one, so the logic in rndis_response_available()
kept the first RNDIS response notification from getting out.
This prevented interoperation with MS-Windows (but not Linux).

Fix this to make RNDIS behave again.

Signed-off-by: Richard Röjfors <richard.rojfors@endian.se>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-11-19 22:01:34 -08:00
David Brownell
9c264521a9 USB: gadget rndis: stop windows self-immolation
Somewhere in the conversion of the RNDIS gadget code to the new
framework, the descriptor of its data interface seems to have
been copied from the CDC Ethernet driver.  Unfortunately that
means it got a nonzero altsetting ... which is incorrect.  Issue
uncovered by Richard Röjfors <richard.rojfors@endian.se>.

This patch fixes that problem, and resolves at least some cases
of Windows XP bluescreening itself.

Tested-by: Richard Röjfors <richard.rojfors@endian.se>.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-11-19 22:01:34 -08:00
David Brownell
e50ae572b3 USB: gadget: cdc-acm deadlock fix
This fixes a deadlock appearing with some USB peripheral drivers
when running CDC ACM gadget code.

The newish (2.6.27) CDC ACM event notification mechanism sends
messages (IN to the host) which are short enough to fit in most
FIFOs.  That means that with some peripheral controller drivers
(evidently not the ones used to verify the notification code!!)
the completion callback can be issued before queue() returns.

The deadlock would come because the completion callback and the
event-issuing code shared a spinlock.  Fix is trivial:  drop
that lock while queueing the message.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-11-13 14:45:06 -08:00
Al Viro
233e70f422 saner FASYNC handling on file close
As it is, all instances of ->release() for files that have ->fasync()
need to remember to evict file from fasync lists; forgetting that
creates a hole and we actually have a bunch that *does* forget.

So let's keep our lives simple - let __fput() check FASYNC in
file->f_flags and call ->fasync() there if it's been set.  And lose that
crap in ->release() instances - leaving it there is still valid, but we
don't have to bother anymore.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-01 09:49:46 -07:00
Robert Jarzmik
3131f7b0ab USB: Fix unneeded endpoint check in pxa27x_udc
The request allocation code doesn't need to check if the
endpoint is not NULL, as the only caller in
include/linux/usb/gadget.h, usb_ep_alloc_request() needs the
endpoint pointer to have a correct value to trigger the
allocation code.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-22 10:05:28 -07:00
Randy Dunlap
dd9ebf1421 usb/gadget: fix kernel-doc warning
Fix kernel-doc warning, wrong parameter name listed:

Warning(lin2627-g3-kdocfixes//drivers/usb/gadget/config.c:183): No description found for parameter 'match'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-22 10:05:28 -07:00
Zhaolei
d66937d71a USB: Fix debugfs_create_file's error checking method for usb/gadget/s3c2410_udc
debugfs_create_file() returns NULL if an error occurs, returns -ENODEV
when debugfs is not enabled in the kernel.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-22 10:05:27 -07:00
Li Yang
15d5a9acb1 usb/fsl_qe_udc: clear data toggle on clear halt request
Fix to comply with USB spec.

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:08 -07:00
Li Yang
928dfa6c62 usb/fsl_qe_udc: fix response to get status request
The original code didn't respond correctly to get status request on
device and endpoint.  Although normal operations can work without the
fix.  It is not compliant with USB spec chapter9 and fails USBCV ch9
tests.  The patch fix this and a few style/typo problems.

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:08 -07:00
Will Newton
23d7cd040e fsl_usb2_udc: Fix oops on probe failure.
In some circumstances when fsl_udc_probe fails udc_controller is freed but
the pointer remains non-NULL. fsl_udc_remove will then try and teardown
the partly initialized and freed controller structure resulting in an oops.
This patch ensures udc_controller is either NULL or fully initialized after
fsl_udc_probe.

Signed-off-by: Will Newton <will.newton@gmail.com>
Acked-by: Li Yang <leoli@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:07 -07:00
Will Newton
59097fb73c fsl_usb2_udc: Add a wmb before priming endpoint.
Add a wmb to fsl_queue_td before priming the endpoint. This ensures that the
modifications to the QH are seen by the hardware.

Added comment as suggested by Felipe Balbi.

Signed-off-by: Will Newton <will.newton@gmail.com>
Acked-by: Li Yang <leoli@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:07 -07:00
Will Newton
224b503901 fsl_usb2_udc: Make fsl_queue_td return type void.
fsl_queue_td always returns 0. Make it void and remove checks for non-zero
return in callers.

Signed-off-by: Will Newton <will.newton@gmail.com>
Acked-by: Li Yang <leoli@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:07 -07:00
Will Newton
825bee3a33 fsl_usb2_udc: Uninline udc_reset_ep_queue.
Uninline udc_reset_ep_queue and remove it's unused return value.

Signed-off-by: Will Newton <will.newton@gmail.com>
Acked-by: Li Yang <leoli@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:07 -07:00
Will Newton
c93eebbe75 fsl_usb2_udc: Rename the arguments of the fsl_writel macro.
Rename the arguments of the fsl_writel macro to match their use.
Remove a couple of unnecessary prototypes.

Signed-off-by: Will Newton <will.newton@gmail.com>
Acked-by: Li Yang <leoli@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:07 -07:00
Will Newton
e06da9a828 fsl_usb2_udc: Initialize spinlock earlier.
Move spinlock initialization earlier so we can turn shared irq handler
debugging on safely.

Signed-off-by: Will Newton <will.newton@gmail.com>
Acked-by: Li Yang <leoli@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:06 -07:00
Will Newton
9d9d88c80e fsl_usb2_udc: Clean up whitespace in /proc debugging output.
Missing spaces were causing the /proc debugging output to be rather
unreadable.

Signed-off-by: Will Newton <will.newton@gmail.com>
Acked-by: Li Yang <leoli@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:06 -07:00
Will Newton
bf7409a23b fsl_usb2_udc: Clean up whitespace in errors and warnings.
VDBG always outputs a trailing \n.

Signed-off-by: Will Newton <will.newton@gmail.com>
Acked-by: Li Yang <leoli@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:06 -07:00
Will Newton
7483cff8a3 fsl_usb2_udc: Fix some sparse warnings and remove redundant code.
Fix some sparse "integer used as NULL pointer" warnings.
Remove some unnecessary volatiles and static initialization.
Remove some unused struct members and reorder to improve packing.
Remove a few unneeded includes.

Signed-off-by: Will Newton <will.newton@gmail.com>
Acked-by: Li Yang <leoli@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:05 -07:00
Will Newton
f6e4411fe7 fsl_usb2_udc: Remove check for udc == NULL in dr_controller_setup.
Remove check for udc == NULL in dr_controller_setup. All callers of
this function have already dereferenced udc at some point.

Signed-off-by: Will Newton <will.newton@gmail.com>
Acked-by: Li Yang <leoli@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:05 -07:00
Will Newton
9c94155ea0 fsl_usb2_udc: Make dr_ep_setup function static.
Make dr_ep_setup function static as it's never used outside this file.

Signed-off-by: Will Newton <will.newton@gmail.com>
Acked-by: Li Yang <leoli@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:04 -07:00
David Brownell
29bac7b766 usb gadget: cdc ethernet notification bugfix
Bugfix for the new CDC Ethernet code:  as part of activating the
network interface's USB link, make sure its link management code
knows whether the interface is open or not.

Without this fix, the link won't work right when it's brought up
before the link is active ... because the initial notification it
sends will have the wrong link state (down, not up).  Makes it
hard to bridge these links (on the host side), among other things.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: stable <stable@kernel.org> [2.6.27]
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:01 -07:00
Tony Lindgren
f1c9e151b1 USB: omap_udc: sync with OMAP tree
Sync up USB parts of the omap_udc support in mainline with the OMAP tree.
This patch addresses some OMAP2 differences ... there's another, with
respect to the double-buffering issue with PIO-IN in omap_ep_setup()
(which is now out of sync with the comments), but it's not clear right
now how to address that.

From: Tony Lindgren <tony@atomide.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:00 -07:00
Yauhen Kharuzhy
f9e9cff613 USB: Fix s3c2410_udc usb speed handling
The new composite framework revealed a weakness in the
s3c2410_udc driver gadget register function. Instead of
checking if speed asked for was USB_LOW_SPEED upon
usb_gadget_register() to deny service, it checked only
for USB_FULL_SPEED, thus denying service to usb high
speed capable gadgets (like g_ether).

Signed-off-by: Yauhen Kharuzhy <jekhor@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:40:58 -07:00
David Brownell
36e893d25a usb gadget: USB_GADGET_VBUS_DRAW Kconfig option
Offer a "how much VBUS power to request" configuration option
for USB gadgets that aren't using board-specific customization
of their gadget or (composite) configuration drivers.

Also remove a couple pointless "depends on USB_GADGET" bits
from the Kconfig text; booleans inside an "if USB_GADGET" will
already have that dependency.

Based on a patch from Justin Clacherty.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Justin Clacherty <justin@redfish-group.com>
Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:40:58 -07:00
Felipe Balbi
549c41e0ac usb: gadget: workaround storage command size issues
Try to workaround issues with bad SCSI implementations
by ignoring the command size error.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:40:56 -07:00
SangSu Park
8296345a35 USB: g_printer: fix handling zero-length packet
g_printer doesn't have to check whether the data size is a multiple of
MaxPacketSize, because device controller driver already make that check.

Signed-off-by: SangSu Park<sangsu@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: David Brownell <david-b@pacbell.net>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:40:56 -07:00
Li Yang
3948f0e0c9 usb: add Freescale QE/CPM USB peripheral controller driver
Some of Freescale SoC chips have a QE or CPM co-processor which
supports full speed USB.  The driver adds device mode support
of both QE and CPM USB controller to Linux USB gadget.  The
driver is tested with MPC8360 and MPC8272, and should work with
other models having QE/CPM given minor tweaks.

Signed-off-by: Xie Xiaobo <X.Xie@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:40:54 -07:00
Huang Weiyi
58209018cf USB: remove unused #include <version.h>
The driver(s) below do not use LINUX_VERSION_CODE nor KERNEL_VERSION.
  drivers/usb/gadget/pxa27x_udc.c

This patch removes the said #include <version.h>.

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:40:53 -07:00
David Brownell
2121427836 usb gadget: defer obex enumeration
Some USB peripheral controller drivers support software control
over the data pullup.  Use those controls to prevent the OBEX
function from enumerating until the userspace server has opened
the /dev/ttyGS* node it will use to implement protocol chitchat
with the USB host.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:40:53 -07:00
Felipe Balbi
3086775a49 usb gadget: cdc obex glue
The following patch introduces a new f_obex.c function driver.
It allows userspace obex servers to use usb as transport layer
for their messages.

[ dbrownell@users.sourceforge.net: various fixes and cleanups ]

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:40:53 -07:00
David Brownell
60beed95e3 usb gadget: function activation/deactivation
Add a new mechanism to the composite gadget framework, letting
functions deactivate (and reactivate) themselves.  Think of it
as a refcounted wrapper for the software pullup control.

A key example of why to use this mechanism involves functions that
require a userspace daemon.  Those functions shuld use this new
mechanism to prevent the gadget from enumerating until those daemons
are activated.  Without this mechanism, hosts would see devices that
malfunction until the relevant daemons start.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:40:53 -07:00
Alan Stern
8066134ff8 USB: gadget: net2280: implement set_wedge
This patch (as1132) implements the set_wedge() method for net2280.
This method is necessary for strict USBCV compliance in
g_file_storage.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:40:52 -07:00
Alan Stern
851a526dcf USB: gadget: dummy_hcd: implement set_wedge
This patch (as1131) implements the set_wedge() method for dummy_hcd.
This method is necessary for strict USBCV compliance in
g_file_storage.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:40:52 -07:00
David Brownell
a7a19fac8a usb: gadget Kconfig cleanup
This reorders the list of USB peripheral controller drivers so it's
more common for the initial (default) value to be relevant:  put the
SOC integrated silicon up front, discrete stuff last.  Alphabetize.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:40:52 -07:00
David Brownell
33376c1c04 usb gadget: link fixes for network gadget
Change how the Ethernet/RNDIS gadget driver builds:  don't
use separate compilation, since it works poorly when key
parts are library code (with init sections etc).  Instead
be as close as we can to "gcc --combine ...".

This is a bit more complicated than most of the others
because it had to resolve a few symbol collisions.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-16 09:24:47 -07:00
David Brownell
8a1ce2c044 usb gadget: link fixes for cdc composite gadget
Change how the CDC Composite gadget driver builds:  don't
use separate compilation, since it works poorly when key
parts are library code (with init sections etc).  Instead
be as close as we can to "gcc --combine ...".

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-16 09:24:47 -07:00
David Brownell
352e2b961c usb gadget: link fixes for storage gadget
Change how the file storage gadget driver builds:  don't
use separate compilation, since it works poorly when key
parts are library code (with init sections etc).  Instead
be as close as we can to "gcc --combine ...".

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-16 09:24:46 -07:00
David Brownell
0a56b03f68 usb gadget: link fixes for printer gadget
Change how the printer gadget driver builds:  don't use
separate compilation, since it works poorly when key parts
are library code (with init sections etc).  Instead be as
close as we can to "gcc --combine ...".

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-16 09:24:46 -07:00
David Brownell
77f754c433 usb gadget: link fixes for MIDI gadget
Change how the MIDI gadget driver builds:  don't use separate
compilation, since it works poorly when key parts are library
code (with init sections etc).  Instead be as close as we can
to "gcc --combine ...".

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-16 09:24:46 -07:00
David Brownell
7e75bc0f90 usb gadget: link fixes for gadget zero
Change how the Gadget Zero driver builds:  don't use
separate compilation, since it works poorly when key
parts are library code (with init sections etc).
Instead be as close as we can to "gcc --combine ...".

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-16 09:24:46 -07:00
David Brownell
4e9ba518ec usb gadget: link fixes for serial gadget
Change how the serial gadget driver builds:  don't use
separate compilation, since it works poorly when key parts
are library code (with init sections etc).  Instead be as
close as we can to "gcc --combine ...".

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-16 09:24:45 -07:00
Greg Kroah-Hartman
b0b090e579 device create: usb: convert device_create_drvdata to device_create
Now that device_create() has been audited, rename things back to the
original call to be sane.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-16 09:24:45 -07:00
Peter Korsgaard
6ef65a7fb6 USB: fsl_usb2_udc: fix VDBG() format string
Fixes:
drivers/usb/gadget/fsl_usb2_udc.c: In function 'dr_controller_setup':
drivers/usb/gadget/fsl_usb2_udc.c:229: warning: format '%p' expects type
'void *', but argument 3 has type 'int'

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-09-23 13:58:08 -07:00
David Brownell
c3e3208e4b usb gadget: fix omap_udc DMA regression
This resolves another regression caused by the "use omap_read/write
instead of __REG" patch:  the hardware address used for DMA to/from
the UDC became wrong.  Bug noted by Russell King.

Reported-by: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-09-23 13:58:07 -07:00
Adrian Bunk
7a8fc9b248 removed unused #include <linux/version.h>'s
This patch lets the files using linux/version.h match the files that
#include it.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-23 12:14:12 -07:00
Robert Jarzmik
bf31338bfd USB: Fix pxa27x_udc usb speed handling.
The new composite framework revealed a weakness in the
pxa27x_udc driver gadget register function. Instead of
checking if speed asked for was USB_LOW_SPEED upon
usb_gadget_register() to deny service, it checked only
for USB_FULL_SPEED, thus denying service to usb high
speed capable gadgets (like g_ether).

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-08-21 10:26:33 -07:00
Felipe Balbi
550a7375fe USB: Add MUSB and TUSB support
This patch adds support for MUSB and TUSB controllers
integrated into omap2430 and davinci. It also adds support
for external tusb6010 controller.

Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-08-13 17:33:00 -07:00
Dmitry Baryshkov
e12cc34527 USB: omap_udc: fix compilation with debug enabled
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-08-13 17:32:58 -07:00
David Brownell
1f1ba11b64 usb gadget: issue notifications from ACM function
Update the CDC-ACM gadget code to support the peripheral-to-host
notifications when the tty is opened or closed, or issues a BREAK.
The serial framework code calls new generic hooks; right now only
CDC-ACM uses those hooks.  This resolves several REVISIT comments
in the code.  (Based on a patch from Felipe Balbi.)

Note that this doesn't expose USB_CDC_CAP_BRK to the host, since
this code still rejects USB_CDC_REQ_SEND_BREAK control requests
for host-to-peripheral BREAK signaling (received via /dev/ttyGS*).

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-08-13 17:32:57 -07:00
David Brownell
630c7aa801 usb gadget: remove needless struct members
This removes some unused members from the various USB functions.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-08-13 17:32:57 -07:00