Commit d50ed624 authored by Eldad Zack's avatar Eldad Zack Committed by Takashi Iwai
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ALSA: usb-audio: Fast Track C400 mixer ranges 



Add ranges for various Fast Track C400 controls, as observed
while using the vendor's mixer control software (res values
are an estimation).

Signed-off-by: default avatarEldad Zack <eldad@fogrefinery.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 76f74bca

sound/usb/mixer.c

+27 −0
Original line number Diff line number Diff line
@@ -806,6 +806,33 @@ static void volume_control_quirks(struct usb_mixer_elem_info *cval, 
				  struct snd_kcontrol *kctl)

{

	switch (cval->mixer->chip->usb_id) {

	case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */

		if (strcmp(kctl->id.name, "Effect Duration") == 0) {

			cval->min = 0x0000;

			cval->max = 0xffff;

			cval->res = 0x00e6;

			break;

		}

		if (strcmp(kctl->id.name, "Effect Volume") == 0 ||

		    strcmp(kctl->id.name, "Effect Feedback Volume") == 0) {

			cval->min = 0x00;

			cval->max = 0xff;

			break;

		}

		if (strstr(kctl->id.name, "Effect Return") != NULL) {

			cval->min = 0xb706;

			cval->max = 0xff7b;

			cval->res = 0x0073;

			break;

		}

		if ((strstr(kctl->id.name, "Playback Volume") != NULL) ||

			(strstr(kctl->id.name, "Effect Send") != NULL)) {

			cval->min = 0xb5fb; /* -73 dB = 0xb6ff */

			cval->max = 0xfcfe;

			cval->res = 0x0073;

		}

		break;



	case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */

	case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */

		if (strcmp(kctl->id.name, "Effect Duration") == 0) {

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