The recent commit to drop the HDA-specific mute-LED control,
e65bf99718b5 ("ALSA: HDA - remove the custom implementation for the
audio LED trigger"), caused a regression on the mixer element read for
"Capture Switch" when it's built from bind controls. The function
create_bind_cap_vol_ctl() creates the snd_kcontrol_new object directly
via snd_hda_gen_add_kctl() instead of add_control(). Although the
commit above added a workaround for the SNDRV_CTL_ACCESS_READWRITE in
add_control() as default, this code path fell out from the radar. As
a result, now the driver gives -EPERM error because of the lack of the
proper access bit at reading "Capture Switch" element value.
Fix the regression by setting the access bit properly.
Fixes: e65bf99718b5 ("ALSA: HDA - remove the custom implementation for the audio LED trigger")
BugLink: https://bugzilla.opensuse.org/show_bug.cgi?id=1186634
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
sound/pci/hda/hda_generic.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index b638fc2ef6f7..1f8018f9ce57 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -3520,6 +3520,7 @@ static int cap_sw_put(struct snd_kcontrol *kcontrol,
static const struct snd_kcontrol_new cap_sw_temp = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Capture Switch",
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.info = cap_sw_info,
.get = cap_sw_get,
.put = cap_sw_put,
--
2.26.2
