Input: xpad - fix PowerA EnWired Controller guide button

This commit explicitly disables the audio interface the same way the official
driver does. This is needed for some controllers, such as the PowerA Enhanced
Wired Controller for Series X|S (0x20d6:0x200e) to report the guide button.

Signed-off-by: Vicki Pfau <vi@endrift.com>
Link: https://lore.kernel.org/r/20230411031650.960322-3-vi@endrift.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index 6ea9c10dfb8a6c20f48d2c8bb51d3227742396b4..138e4a9f341f79ad36c2b505a5865d3ab79804ce 100644 (file)
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -1396,6 +1396,21 @@ static int xpad_start_xbox_one(struct usb_xpad *xpad)
        unsigned long flags;
        int retval;
 
+       if (usb_ifnum_to_if(xpad->udev, GIP_WIRED_INTF_AUDIO)) {
+               /*
+                * Explicitly disable the audio interface. This is needed
+                * for some controllers, such as the PowerA Enhanced Wired
+                * Controller for Series X|S (0x20d6:0x200e) to report the
+                * guide button.
+                */
+               retval = usb_set_interface(xpad->udev,
+                                          GIP_WIRED_INTF_AUDIO, 0);
+               if (retval)
+                       dev_warn(&xpad->dev->dev,
+                                "unable to disable audio interface: %d\n",
+                                retval);
+       }
+
        spin_lock_irqsave(&xpad->odata_lock, flags);
 
        /*