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| author |   Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2014-04-25 22:45:12 +0900 |
|---|---|---|
| committer |   Takashi Iwai <tiwai@suse.de> | 2014-05-26 14:28:41 +0200 |
| commit | 594ddced821dee39a548efe46d7f834bae013505 (patch) | |
| tree | c0abaae51d84ef71127c3db3797130eb61701001 /sound/firewire/fireworks/fireworks.c | |
| parent | ALSA: fireworks: Add PCM interface (diff) | |
| download | linux-dev-594ddced821dee39a548efe46d7f834bae013505.tar.xz linux-dev-594ddced821dee39a548efe46d7f834bae013505.zip | |
ALSA: fireworks: Add hwdep interface
This interface is designed for mixer/control application. To use hwdep
interface, the application can get information about firewire node, can
lock/unlock kernel streaming and can get notification at starting/stopping
kernel streaming.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire/fireworks/fireworks.c')
| -rw-r--r-- | sound/firewire/fireworks/fireworks.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/firewire/fireworks/fireworks.c b/sound/firewire/fireworks/fireworks.c index d7877c79e32f..f8d06f56618f 100644 --- a/sound/firewire/fireworks/fireworks.c +++ b/sound/firewire/fireworks/fireworks.c @@ -217,6 +217,7 @@ efw_probe(struct fw_unit *unit, efw->unit = unit; mutex_init(&efw->mutex); spin_lock_init(&efw->lock); + init_waitqueue_head(&efw->hwdep_wait); err = get_hardware_info(efw); if (err < 0) @@ -236,6 +237,10 @@ efw_probe(struct fw_unit *unit, if (err < 0) goto error; + err = snd_efw_create_hwdep_device(efw); + if (err < 0) + goto error; + err = snd_efw_stream_init_duplex(efw); if (err < 0) goto error; |