ALSA: bebob: delayed registration of sound card
Some bebob based units tends to fail asynchronous communication when
IEEE 1394 bus is under bus-reset state. When registering sound card
instance at unit probe callback, userspace applications can be involved
to the state.
This commit postpones the registration till the bus is calm.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h
index b50bb33d..2a442a7 100644
--- a/sound/firewire/bebob/bebob.h
+++ b/sound/firewire/bebob/bebob.h
@@ -83,6 +83,10 @@
struct mutex mutex;
spinlock_t lock;
+ bool registered;
+ struct delayed_work dwork;
+
+ const struct ieee1394_device_id *entry;
const struct snd_bebob_spec *spec;
unsigned int midi_input_ports;
@@ -111,7 +115,6 @@
/* for M-Audio special devices */
void *maudio_special_quirk;
- bool deferred_registration;
/* For BeBoB version quirk. */
unsigned int version;