uvcvideo: Set alternate setting 0 on resume if the bus has been reset
commit2ba0b8db49fe9f662eb20bd5fa84c91bcdaec206
authorMing Lei <tom.leiming@gmail.com>
Sat, 16 Jul 2011 03:51:00 +0000 (16 00:51 -0300)
committerGreg Kroah-Hartman <gregkh@suse.de>
Fri, 11 Nov 2011 17:36:13 +0000 (11 09:36 -0800)
treeb793c09f6c0ad318327b05c42acfad82f1c71887
parent76ec8cdcca9f8fa8e2546ed96a2715a6654487ad
uvcvideo: Set alternate setting 0 on resume if the bus has been reset

commit d59a7b1dbce8b972ec2dc9fcaaae0bfa23687423 upstream.

If the bus has been reset on resume, set the alternate setting to 0.
This should be the default value, but some devices crash or otherwise
misbehave if they don't receive a SET_INTERFACE request before any other
video control request.

Microdia's 0c45:6437 camera has been found to require this change or it
will stop sending video data after resume.

uvc_video.c]

Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/media/video/uvc/uvc_driver.c
drivers/media/video/uvc/uvc_video.c
drivers/media/video/uvc/uvcvideo.h