[PATCH v2 2/2] Input: xpad - fix PowerA EnWired Controller guide button

From: Vicki Pfau <vi@endrift.com>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>, linux-input@vger.kernel.org
Cc: Vicki Pfau <vi@endrift.com>, Pavel Rojtberg <rojtberg@gmail.com>
Subject: [PATCH v2 2/2] Input: xpad - fix PowerA EnWired Controller guide button
Date: Mon, 10 Apr 2023 20:16:50 -0700	[thread overview]
Message-ID: <20230411031650.960322-3-vi@endrift.com> (raw)
In-Reply-To: <20230411031650.960322-1-vi@endrift.com>

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>
---
 drivers/input/joystick/xpad.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index 6ea9c10dfb8a..175fcba7f92d 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -1396,6 +1396,16 @@ 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);
 
 	/*
-- 
2.40.0

