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Commit 21493316 authored by Federico Cuello's avatar Federico Cuello Committed by Takashi Iwai
Browse files

ALSA: usb: mixer: volume quirk for CM102-A+/102S+ 



Currently it's not possible to set volume lower than 26% (it just mutes).

Also fixes this warning:

  Warning! Unlikely big volume range (=9472), cval->res is probably wrong.
  [13] FU [PCM Playback Volume] ch = 2, val = -9473/-1/1

, and volume works fine for full range.

Signed-off-by: default avatarFederico Cuello <fedux@fedux.com.ar>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent c8beccc1

sound/usb/mixer.c

+8 −0
Original line number Diff line number Diff line
@@ -967,6 +967,14 @@ static void volume_control_quirks(struct usb_mixer_elem_info *cval, 
		}

		break;



	case USB_ID(0x0d8c, 0x0103):

		if (!strcmp(kctl->id.name, "PCM Playback Volume")) {

			usb_audio_info(chip,

				 "set volume quirk for CM102-A+/102S+\n");

			cval->min = -256;

		}

		break;



	case USB_ID(0x0471, 0x0101):

	case USB_ID(0x0471, 0x0104):

	case USB_ID(0x0471, 0x0105):