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-rw-r--r--sound/usb/mixer.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 4eacbe2e2d6..feed500f943 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -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) {