media: uvcvideo: Return -EIO for control errors

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The device is doing something unexpected with the control. Either because
the protocol is not properly implemented or there has been a HW error.

Fixes v4l2-compliance:

Control ioctls (Input 0):
                fail: v4l2-test-controls.cpp(448): s_ctrl returned an error (22)
        test VIDIOC_G/S_CTRL: FAIL
                fail: v4l2-test-controls.cpp(698): s_ext_ctrls returned an error (22)
        test VIDIOC_G/S/TRY_EXT_CTRLS: FAIL

Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

...

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Ricardo Ribalda 2021-06-18 14:29:09 +02:00 • committed by Mauro Carvalho Chehab

parent 97a2777a96

commit ffccdde5f0

1 changed files with 5 additions and 0 deletions

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drivers/media/usb/uvc/uvc_video.c

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