1 files changed, 10 insertions, 0 deletions

diff --git a/sound/usb/mixer_maps.c b/sound/usb/mixer_maps.c
index cc2dd1f0decb..32af6b741ef5 100644
--- a/sound/usb/mixer_maps.c
+++ b/sound/usb/mixer_maps.c
@@ -322,6 +322,12 @@ static struct usbmix_name_map hercules_usb51_map[] = {
         { 0 }                           /* terminator */
 };
 
+/* Plantronics Gamecom 780 has a broken volume control, better to disable it */
+static struct usbmix_name_map gamecom780_map[] = {
+        { 9, NULL }, /* FU, speaker out */
+        {}
+};
+
 /*
  * Control map entries
  */
@@ -358,6 +364,10 @@ static struct usbmix_ctl_map usbmix_ctl_maps[] = {
                 .id = USB_ID(0x046d, 0x09a4),
                 .ignore_ctl_error = 1,
         },
+        {       /* Plantronics GameCom 780 */
+                .id = USB_ID(0x047f, 0xc010),
+                .map = gamecom780_map,
+        },
         {
                 /* Hercules DJ Console (Windows Edition) */
                 .id = USB_ID(0x06f8, 0xb000),