diff options
| author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-07-29 01:42:02 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-09-12 12:18:14 -0300 |
| commit | 73c6f462d1d07f276e279467f311a96a2a43d9c5 (patch) | |
| tree | a9ebbc04a5b577f75d93d5956827723fca017581 /drivers | |
| parent | e81516c58ef84663ee05a43760a53a416d529de7 (diff) | |
V4L/DVB (12345): em28xx: fix audio VIDIOC_S_CTRL adjustments on devices without ac97
Even devices without ac97 needs to call analog audio setup function, to
properly set xclk and mute/unmute.
Thanks to Angelo Cano <acano@fastmail.fm> for reporting and testing it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-video.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c index 7ed3051554c..477b9b67eae 100644 --- a/drivers/media/video/em28xx/em28xx-video.c +++ b/drivers/media/video/em28xx/em28xx-video.c @@ -1146,11 +1146,25 @@ static int vidioc_s_ctrl(struct file *file, void *priv, else rc = 1; - /* It were not an AC97 control. Sends it to the v4l2 dev interface */ + /* It isn't an AC97 control. Sends it to the v4l2 dev interface */ if (rc == 1) { v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_ctrl, ctrl); - /* FIXME: should be returning a meaninful value */ - rc = 0; + + /* + * In the case of non-AC97 volume controls, we still need + * to do some setups at em28xx, in order to mute/unmute + * and to adjust audio volume. However, the value ranges + * should be checked by the corresponding V4L subdriver. + */ + switch (ctrl->id) { + case V4L2_CID_AUDIO_MUTE: + dev->mute = ctrl->value; + rc = em28xx_audio_analog_set(dev); + break; + case V4L2_CID_AUDIO_VOLUME: + dev->volume = ctrl->value; + rc = em28xx_audio_analog_set(dev); + } } mutex_unlock(&dev->lock); |