There are cases where we want to call audio_mux() without changing the value of
the v4l2 mute control, for example
- mute mute on last close
- mute on device probing
Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>