diff options
| author | Shuah Khan <shuah.kh@samsung.com> | 2014-02-21 21:50:17 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-03-03 06:46:36 -0300 |
| commit | a61f68119af399b2911e9881abd5bd123f886611 (patch) | |
| tree | 29260c263e9abe3cab2eeba45f033f1d17f287a6 /drivers/media/usb | |
| parent | 5025076aadfeaf774f341b852b997f2bc718da6a (diff) | |
[media] em28xx-video: implement em28xx_ops: suspend/resume hooks
Implement em28xx_ops: suspend/resume hooks. em28xx usb driver will
invoke em28xx_ops: suspend and resume hooks for all its extensions
from its suspend() and resume() interfaces.
Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/usb')
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx-video.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-video.c b/drivers/media/usb/em28xx/em28xx-video.c index 2775c9062c0a..19af6b3e9e2b 100644 --- a/drivers/media/usb/em28xx/em28xx-video.c +++ b/drivers/media/usb/em28xx/em28xx-video.c @@ -1933,6 +1933,32 @@ static int em28xx_v4l2_fini(struct em28xx *dev) return 0; } +static int em28xx_v4l2_suspend(struct em28xx *dev) +{ + if (dev->is_audio_only) + return 0; + + if (!dev->has_video) + return 0; + + em28xx_info("Suspending video extension"); + em28xx_stop_urbs(dev); + return 0; +} + +static int em28xx_v4l2_resume(struct em28xx *dev) +{ + if (dev->is_audio_only) + return 0; + + if (!dev->has_video) + return 0; + + em28xx_info("Resuming video extension"); + /* what do we do here */ + return 0; +} + /* * em28xx_v4l2_close() * stops streaming and deallocates all resources allocated by the v4l2 @@ -2505,6 +2531,8 @@ static struct em28xx_ops v4l2_ops = { .name = "Em28xx v4l2 Extension", .init = em28xx_v4l2_init, .fini = em28xx_v4l2_fini, + .suspend = em28xx_v4l2_suspend, + .resume = em28xx_v4l2_resume, }; static int __init em28xx_video_register(void) |