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Error 2 is defined by UVC as:
Wrong State: The device is in a state that disallows the specific
request. The device will remain in this state until a specific action
from the host or the user is completed.
This is documented as happening when attempting to set the value of a
manual control when the device is in auto mode. While V4L2 allows this,
the closest error code defined by VIDIOC_S_CTRL is EACCES:
EACCES: Attempt to set a read-only control or to get a write-only
control. Or if there is an attempt to set an inactive control and the
driver is not capable of caching the new value until the control is
active again.
Replace EILSEQ with EACCES.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Suggested-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
44cdba4130