| Message ID | 20210618122923.385938-8-ribalda@chromium.org |
|---|---|
| State | Accepted |
| Commit | ffccdde5f0e17d2f0d788a9d831a027187890eaa |
| Headers | show |
| Series | [v10,01/21] media: v4l2-ioctl: Fix check_ext_ctrls | expand |
diff --git a/drivers/media/usb/uvc/uvc_video.c b/drivers/media/usb/uvc/uvc_video.c index a777b389a66e..daba5fe352ea 100644 --- a/drivers/media/usb/uvc/uvc_video.c +++ b/drivers/media/usb/uvc/uvc_video.c @@ -115,6 +115,11 @@ int uvc_query_ctrl(struct uvc_device *dev, u8 query, u8 unit, case 5: /* Invalid unit */ case 6: /* Invalid control */ case 7: /* Invalid Request */ + /* + * The firmware has not properly implemented + * the control or there has been a HW error. + */ + return -EIO; case 8: /* Invalid value within range */ return -EINVAL; default: /* reserved or unknown */
The device is doing something unspected 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: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Ricardo Ribalda <ribalda@chromium.org> --- drivers/media/usb/uvc/uvc_video.c | 5 +++++ 1 file changed, 5 insertions(+)