ALSA: line6: Add poll callback for hwdep

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At least POD HD500 uses message-based communication, both sides can
send messages. Add poll callback so application can wait for device
messages without using busy loop.

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Link: https://lore.kernel.org/r/20200502193120.79115-3-anarsoul@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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Vasily Khoruzhick 2020-05-02 12:31:20 -07:00 • committed by Takashi Iwai

parent 5c2d0de544

commit c55f569274

1 changed files with 16 additions and 0 deletions

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sound/usb/line6/driver.c

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