• Hans Verkuil's avatar
    [media] radio-si470x-usb: remove autosuspend, implement suspend/resume · 6fd522a6
    Hans Verkuil authored
    The radio-si470x-usb driver supported both autosuspend and it stopped the
    radio the moment the last user of the radio device closed it. However, that
    was very confusing since if you play the audio from the device (e.g. through
    arecord -D ... | aplay) then no sound would play unless you had the radio
    device open at the same time, even though there is no need to do anything
    with that node.
    
    On the other hand, the actual suspend/resume functions didn't do anything,
    which would fail if you *did* have the radio node open at that time.
    
    So:
    
    - remove autosuspend (bad idea in general for USB radio devices)
    - move the start/stop out of the open/release functions into the resume/suspend
      functions.
    Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
    Acked-by: default avatarTobias Lorenz <tobias.lorenz@gmx.net>
    Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
    6fd522a6
radio-si470x-usb.c 22.8 KB