diff options
| author | Pavel Hofman <pavel.hofman@ivitera.com> | 2022-01-21 16:53:06 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-26 14:06:09 +0100 |
| commit | 62385cf158a7e65b5f347590521d02ee75dc8518 (patch) | |
| tree | b5aed1dc5e37dcb80aa15fd1212b020e912e201c | |
| parent | 8fe9a03f43316cd93e753d06372159d23ba931d4 (diff) | |
| download | linux-62385cf158a7e65b5f347590521d02ee75dc8518.tar.bz2 | |
usb: gadget: u_audio: Add suspend call
Add exported method u_audio_suspend which sets stream status to
inactive and sends notifications. The method does not free any
resources.
Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com>
Link: https://lore.kernel.org/r/20220121155308.48794-9-pavel.hofman@ivitera.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/gadget/function/u_audio.c | 9 | ||||
| -rw-r--r-- | drivers/usb/gadget/function/u_audio.h | 2 |
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/usb/gadget/function/u_audio.c b/drivers/usb/gadget/function/u_audio.c index fab1bc439002..2bb569895a90 100644 --- a/drivers/usb/gadget/function/u_audio.c +++ b/drivers/usb/gadget/function/u_audio.c @@ -757,6 +757,15 @@ void u_audio_stop_playback(struct g_audio *audio_dev) } EXPORT_SYMBOL_GPL(u_audio_stop_playback); +void u_audio_suspend(struct g_audio *audio_dev) +{ + struct snd_uac_chip *uac = audio_dev->uac; + + set_active(&uac->p_prm, false); + set_active(&uac->c_prm, false); +} +EXPORT_SYMBOL_GPL(u_audio_suspend); + int u_audio_get_volume(struct g_audio *audio_dev, int playback, s16 *val) { struct snd_uac_chip *uac = audio_dev->uac; diff --git a/drivers/usb/gadget/function/u_audio.h b/drivers/usb/gadget/function/u_audio.h index 5e6ed0f31cc3..9512b8fccfaa 100644 --- a/drivers/usb/gadget/function/u_audio.h +++ b/drivers/usb/gadget/function/u_audio.h @@ -130,4 +130,6 @@ int u_audio_set_volume(struct g_audio *g_audio, int playback, s16 val); int u_audio_get_mute(struct g_audio *g_audio, int playback, int *val); int u_audio_set_mute(struct g_audio *g_audio, int playback, int val); +void u_audio_suspend(struct g_audio *g_audio); + #endif /* __U_AUDIO_H */ |