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ALSA: bebob: Add a quirk of data blocks for MIDI messages for some M-Audio devices 

The firmwares for M-Audio Firewire 410/1814 and ProjectMix I/O has a quirk to
ignore MIDI messages in data blocks more than 8. This commit uses a flag which
Fireworks uses for a similar quirk.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Sakamoto 2014-04-25 22:45:28 +09:00 committed by Takashi Iwai
parent 9d59124cac
commit c495a4a36e
1 changed files with 7 additions and 0 deletions
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7
sound/firewire/bebob/bebob_stream.c
View File

@ -472,6 +472,13 @@ int snd_bebob_stream_init_duplex(struct snd_bebob *bebob)
amdtp_stream_destroy(&bebob->rx_stream);
destroy_both_connections(bebob);
}
/*
* The firmware for these devices ignore MIDI messages in more than
* first 8 data blocks of an received AMDTP packet.
*/
if (bebob->spec == &maudio_fw410_spec ||
bebob->spec == &maudio_special_spec)
bebob->rx_stream.rx_blocks_for_midi = 8;
end:
return err;
}