The fixed-size components field in SNDRV_CTL_IOCTL_CARD_INFO can be too
small on systems with many audio devices. The kernel [1] will provide a
new ioctl to read the full string while truncating the original in
card_info if it grows too big. Make sure the code falls back to original
if the new ioctl is not supported.
[1]: https://lore.kernel.org/all/20260122111249.67319-1-mstrozek@opensource.cirrus.com/
Signed-off-by: Maciej Strozek <mstrozek@opensource.cirrus.com>
It may be useful to deactivate the sync mechanism for some configurations.
Create a new virtual boolean control for this.
Link: https://github.com/alsa-project/alsa-ucm-conf/pull/410
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
For UCM, it may be required to sync multiple controls. The logic
is really simple - last write to any control in the group wins.
Link: https://github.com/alsa-project/alsa-ucm-conf/pull/410
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
config.h may contain defines like _FILE_OFFSET_BITS which influence
the system wide include files (off_t types, open -> open64 function
usage etc.).
Related: https://github.com/alsa-project/alsa-lib/pull/333
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Add possibility to return -EINTR instead waiting for the event. The
applications may want to handle -EINTR condition themselves.
BugLink: https://github.com/alsa-project/alsa-lib/issues/228
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
The function snd_ctl_remap_async will call itself infinitely. Looks like
a typo.
Fixes: a64391a42 ("control: remap plugin - initial version")
Signed-off-by: Chih-Wei Huang <cwhuang@linux.org.tw>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
