1 files changed, 19 insertions, 4 deletions

diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 0df9ede99dfd..89730707614c 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -660,10 +660,23 @@ static int snd_usb_cm6206_boot_quirk(struct usb_device *dev)
         return err;
 }
 
+/* quirk for Plantronics GameCom 780 with CM6302 chip */
+static int snd_usb_gamecon780_boot_quirk(struct usb_device *dev)
+{
+        /* set the initial volume and don't change; other values are either
+         * too loud or silent due to firmware bug (bko#65251)
+         */
+        u8 buf[2] = { 0x74, 0xdc };
+        return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR,
+                        USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,
+                        UAC_FU_VOLUME << 8, 9 << 8, buf, 2);
+}
+
 /*
  * Novation Twitch DJ controller
+ * Focusrite Novation Saffire 6 USB audio card
  */
-static int snd_usb_twitch_boot_quirk(struct usb_device *dev)
+static int snd_usb_novation_boot_quirk(struct usb_device *dev)
 {
         /* preemptively set up the device because otherwise the
          * raw MIDI endpoints are not active */
@@ -972,9 +985,9 @@ int snd_usb_apply_boot_quirk(struct usb_device *dev,
                 /* Digidesign Mbox 2 */
                 return snd_usb_mbox2_boot_quirk(dev);
 
-        case USB_ID(0x1235, 0x0018):
-                /* Focusrite Novation Twitch */
-                return snd_usb_twitch_boot_quirk(dev);
+        case USB_ID(0x1235, 0x0010): /* Focusrite Novation Saffire 6 USB */
+        case USB_ID(0x1235, 0x0018): /* Focusrite Novation Twitch */
+                return snd_usb_novation_boot_quirk(dev);
 
         case USB_ID(0x133e, 0x0815):
                 /* Access Music VirusTI Desktop */
@@ -986,6 +999,8 @@ int snd_usb_apply_boot_quirk(struct usb_device *dev,
                 return snd_usb_nativeinstruments_boot_quirk(dev);
         case USB_ID(0x0763, 0x2012):  /* M-Audio Fast Track Pro USB */
                 return snd_usb_fasttrackpro_boot_quirk(dev);
+        case USB_ID(0x047f, 0xc010): /* Plantronics Gamecom 780 */
+                return snd_usb_gamecon780_boot_quirk(dev);
         }
 
         return 0;