ALSA: fireface: add protocol-specific operation to fill transaction buffer with MIDI messages

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Between former and latter models, content of asynchronous transaction
for MIDI messages from driver to device is different.

This commit is a preparation to support latter models. A protocol-specific
operation is added to encode MIDI messages to the transaction.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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Takashi Sakamoto 2019-01-22 22:17:04 +09:00 • committed by Takashi Iwai

parent 481e09ac9a

commit 82b6297b44

3 changed files with 38 additions and 19 deletions

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23

sound/firewire/fireface/ff-protocol-former.c

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31

sound/firewire/fireface/ff-transaction.c

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3

sound/firewire/fireface/ff.h

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