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authorTakashi Sakamoto <o-takashi@sakamocchi.jp>2017-04-14 10:46:32 +0300
committerTakashi Iwai <tiwai@suse.de>2017-04-14 15:50:43 +0300
commitae369e559f16c5245d6b987c43799179af16e4d6 (patch)
treeae86ea2cd156f7e27ef9b04ba55cf0136ecee7e2 /sound/pci/hda
parent1f94205d2225339c77e64d5872ec575ee2815720 (diff)
downloadlinux-ae369e559f16c5245d6b987c43799179af16e4d6.tar.xz
ALSA: firewire-tascam: support drain callback for MIDI playback substream
ALSA driver for TASCAM FireWire series transfers MIDI messages in system workqueue. In current design of the driver, applications should wait for sequence of transmission when they close ALSA rawmidi character devices. However, when considering design of rawmidi interface, it's preferable to wait in drain ioctl. This commit adds support for the drain ioctl to wait for the end of the transmission. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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