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| author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2015-09-30 02:39:21 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2015-09-30 15:36:56 +0200 |
| commit | 660dd3d52ead45b8e60dcf966daf304de2121a28 (patch) | |
| tree | 0c2a7adb65ad0651a1a890b1c0e7653da9470f2f /sound/firewire/digi00x/digi00x.c | |
| parent | ALSA: firewire-digi00x: add PCM functionality (diff) | |
| download | linux-660dd3d52ead45b8e60dcf966daf304de2121a28.tar.xz linux-660dd3d52ead45b8e60dcf966daf304de2121a28.zip | |
ALSA: firewire-digi00x: 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/digi00x/digi00x.c')
| -rw-r--r-- | sound/firewire/digi00x/digi00x.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sound/firewire/digi00x/digi00x.c b/sound/firewire/digi00x/digi00x.c index 166c1d43123f..cd93030df1cd 100644 --- a/sound/firewire/digi00x/digi00x.c +++ b/sound/firewire/digi00x/digi00x.c @@ -72,6 +72,8 @@ static int snd_dg00x_probe(struct fw_unit *unit, dg00x->unit = fw_unit_get(unit); mutex_init(&dg00x->mutex); + spin_lock_init(&dg00x->lock); + init_waitqueue_head(&dg00x->hwdep_wait); err = name_card(dg00x); if (err < 0) @@ -87,6 +89,10 @@ static int snd_dg00x_probe(struct fw_unit *unit, if (err < 0) goto error; + err = snd_dg00x_create_hwdep_device(dg00x); + if (err < 0) + goto error; + err = snd_card_register(card); if (err < 0) goto error; |