Dne 07. 04. 21 v 9:54 Jonas Holmberg napsal(a):
Add a control to the card before copying the id so that the numid field is initialized in the copy. Otherwise the numid field of active_id, format_id, rate_id and channels_id will be the same (0) and snd_ctl_notify() will not queue the events properly.
Signed-off-by: Jonas Holmberg jonashg@axis.com
Nice hit. Thanks.
Reviewed-by: Jaroslav Kysela perex@perex.cz
sound/drivers/aloop.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/sound/drivers/aloop.c b/sound/drivers/aloop.c index 52637180af33..80b814b9922a 100644 --- a/sound/drivers/aloop.c +++ b/sound/drivers/aloop.c @@ -1571,6 +1571,14 @@ static int loopback_mixer_new(struct loopback *loopback, int notify) return -ENOMEM; kctl->id.device = dev; kctl->id.subdevice = substr;
/* Add the control before copying the id so that* the numid field of the id is set in the copy.*/err = snd_ctl_add(card, kctl);if (err < 0)return err;switch (idx) { case ACTIVE_IDX: setup->active_id = kctl->id;@@ -1587,9 +1595,6 @@ static int loopback_mixer_new(struct loopback *loopback, int notify) default: break; }
err = snd_ctl_add(card, kctl);if (err < 0)return err; }