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| author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2015-10-01 16:02:17 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2015-10-02 19:17:04 +0300 |
| commit | e5e0c3dd257bf34cf001e10422943f90437f0f1b (patch) | |
| tree | 3a4dfafb1815f996d9bf0366c2f9b95353a09199 /sound/firewire/tascam/tascam.c | |
| parent | e453df44f0d6574e99fae990c89a22c6ec6bbb62 (diff) | |
| download | linux-e5e0c3dd257bf34cf001e10422943f90437f0f1b.tar.xz | |
ALSA: firewire-tascam: add hwdep interface
This commit adds hwdep interface so as the other IEEE 1394 sound devices
has.
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/tascam/tascam.c')
| -rw-r--r-- | sound/firewire/tascam/tascam.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sound/firewire/tascam/tascam.c b/sound/firewire/tascam/tascam.c index bb4f70656f2f..ee2f498dcce4 100644 --- a/sound/firewire/tascam/tascam.c +++ b/sound/firewire/tascam/tascam.c @@ -110,6 +110,8 @@ static int snd_tscm_probe(struct fw_unit *unit, tscm->spec = (const struct snd_tscm_spec *)entry->driver_data; mutex_init(&tscm->mutex); + spin_lock_init(&tscm->lock); + init_waitqueue_head(&tscm->hwdep_wait); err = check_name(tscm); if (err < 0) @@ -125,6 +127,10 @@ static int snd_tscm_probe(struct fw_unit *unit, if (err < 0) goto error; + err = snd_tscm_create_hwdep_device(tscm); + if (err < 0) + goto error; + err = snd_card_register(card); if (err < 0) goto error; |