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| author |  Takashi Sakamoto <o-takashi@sakamocchi.jp>
| 2017-03-22 21:30:24 +0900 |
|---|---|---|
| committer |  Takashi Iwai <tiwai@suse.de>
| 2017-03-28 12:34:02 +0200 |
| commit | 71c3797779d3cd8378767f5b2d8cfd3b2f88c5c1 (patch) | |
| tree | b64eeb67394492017bb55b3123ad11a13e7de202 /sound/firewire/motu/motu.c | |
| parent | ALSA: firewire-motu: add MIDI functionality (diff) | |
| download | linux-71c3797779d3cd8378767f5b2d8cfd3b2f88c5c1.tar.gz linux-71c3797779d3cd8378767f5b2d8cfd3b2f88c5c1.tar.bz2 linux-71c3797779d3cd8378767f5b2d8cfd3b2f88c5c1.zip | |
ALSA: firewire-motu: add hwdep interface
This commit adds hwdep interface so as the other sound drivers for units
on IEEE 1394 bus have.
This interface is designed for mixer/control applications. By using this
interface, an 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/motu/motu.c')
| -rw-r--r-- | sound/firewire/motu/motu.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/firewire/motu/motu.c b/sound/firewire/motu/motu.c index d4da1377fa50..619554b9dbef 100644 --- a/sound/firewire/motu/motu.c +++ b/sound/firewire/motu/motu.c @@ -109,6 +109,10 @@ static void do_registration(struct work_struct *work) goto error; } + err = snd_motu_create_hwdep_device(motu); + if (err < 0) + goto error; + err = snd_card_register(motu->card); if (err < 0) goto error; @@ -145,6 +149,7 @@ static int motu_probe(struct fw_unit *unit, mutex_init(&motu->mutex); spin_lock_init(&motu->lock); + init_waitqueue_head(&motu->hwdep_wait); /* Allocate and register this sound card later. */ INIT_DEFERRABLE_WORK(&motu->dwork, do_registration); |