ALSA: firewire-motu: add ioctl command to read cached parameters in register DSP model

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This patch adds new ioctl command for userspace applications to read
cached parameters of register DSP.

The structured data includes model-dependent parameters. Userspace
application should be carefully programmed so that what parameter is
common and specific.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20211015080826.34847-10-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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Takashi Sakamoto 2021-10-15 17:08:24 +09:00 • committed by Takashi Iwai

parent 7d843c494a

commit ca15a09ccc

4 changed files with 35 additions and 1 deletions

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include/uapi/sound/firewire.h

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