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| author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2015-06-14 06:49:36 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2015-06-15 14:38:29 +0300 |
| commit | 8d1c2694e45bd5a1b7e79734952e8dfb6f2974a6 (patch) | |
| tree | 56483a3ab88dd00554dbb0bd4e140cad5c5f164b /sound/firewire/bebob/bebob_midi.c | |
| parent | c4d860a0d256663937b51468ea13de3c2cd2a09d (diff) | |
| download | linux-8d1c2694e45bd5a1b7e79734952e8dfb6f2974a6.tar.xz | |
ALSA: bebob: keep duplex streams always to keep internal multiplexer properly
Behringer FCA610 transmits packets with periodic noisy PCM samples
when receiving no streams, and generates a bit noisy sound.
ALSA BeBoB driver is programmed to establish both in/out connections
when starting streaming, then transfers packets as userspace applications
requested. This means that there's a case that one of incoming/outgoing
streams is running, to save CPU and bandwidth usage. Although, it's natural
to start transferring packets in both direction.
This commit makes this driver to keeps duplex streams always.
Tested-by: Kim Tore Jensen <kim@incendio.no>
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire/bebob/bebob_midi.c')
| -rw-r--r-- | sound/firewire/bebob/bebob_midi.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/sound/firewire/bebob/bebob_midi.c b/sound/firewire/bebob/bebob_midi.c index 63343d578df3..5681143925cd 100644 --- a/sound/firewire/bebob/bebob_midi.c +++ b/sound/firewire/bebob/bebob_midi.c @@ -17,7 +17,7 @@ static int midi_capture_open(struct snd_rawmidi_substream *substream) if (err < 0) goto end; - atomic_inc(&bebob->capture_substreams); + atomic_inc(&bebob->substreams_counter); err = snd_bebob_stream_start_duplex(bebob, 0); if (err < 0) snd_bebob_stream_lock_release(bebob); @@ -34,7 +34,7 @@ static int midi_playback_open(struct snd_rawmidi_substream *substream) if (err < 0) goto end; - atomic_inc(&bebob->playback_substreams); + atomic_inc(&bebob->substreams_counter); err = snd_bebob_stream_start_duplex(bebob, 0); if (err < 0) snd_bebob_stream_lock_release(bebob); @@ -46,7 +46,7 @@ static int midi_capture_close(struct snd_rawmidi_substream *substream) { struct snd_bebob *bebob = substream->rmidi->private_data; - atomic_dec(&bebob->capture_substreams); + atomic_dec(&bebob->substreams_counter); snd_bebob_stream_stop_duplex(bebob); snd_bebob_stream_lock_release(bebob); @@ -57,7 +57,7 @@ static int midi_playback_close(struct snd_rawmidi_substream *substream) { struct snd_bebob *bebob = substream->rmidi->private_data; - atomic_dec(&bebob->playback_substreams); + atomic_dec(&bebob->substreams_counter); snd_bebob_stream_stop_duplex(bebob); snd_bebob_stream_lock_release(bebob); |