Both capture and playback alsa devices use subdevice 0. Yet capture-side ctls are defined for subdevice 1. The patch sets subdevice 0 for them. Signed-off-by: Pavel Hofman <pavel.hofman@xxxxxxxxxxx> --- drivers/usb/gadget/function/u_audio.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/gadget/function/u_audio.c b/drivers/usb/gadget/function/u_audio.c index c46400be5464..4f6c0049c534 100644 --- a/drivers/usb/gadget/function/u_audio.c +++ b/drivers/usb/gadget/function/u_audio.c @@ -1145,7 +1145,7 @@ int g_audio_setup(struct g_audio *g_audio, const char *pcm_name, } kctl->id.device = pcm->device; - kctl->id.subdevice = i; + kctl->id.subdevice = 0; err = snd_ctl_add(card, kctl); if (err < 0) @@ -1168,7 +1168,7 @@ int g_audio_setup(struct g_audio *g_audio, const char *pcm_name, } kctl->id.device = pcm->device; - kctl->id.subdevice = i; + kctl->id.subdevice = 0; kctl->tlv.c = u_audio_volume_tlv; -- 2.25.1