[PATCH v2 1/2] Input: xpad - Add constants for GIP interface numbers

[Vicki Pfau <vi@endrift.com>]

Wired GIP devices present multiple interfaces with the same USB identification
other than the interface number. This adds constants for differentiating two of
them and uses them where appropriate

Signed-off-by: Vicki Pfau <vi@endrift.com>
---
 drivers/input/joystick/xpad.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index 260f91fef427..6ea9c10dfb8a 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -561,6 +561,9 @@ struct xboxone_init_packet {
 #define GIP_MOTOR_LT BIT(3)
 #define GIP_MOTOR_ALL (GIP_MOTOR_R | GIP_MOTOR_L | GIP_MOTOR_RT | GIP_MOTOR_LT)
 
+#define GIP_WIRED_INTF_DATA 0
+#define GIP_WIRED_INTF_AUDIO 1
+
 /*
  * This packet is required for all Xbox One pads with 2015
  * or later firmware installed (or present from the factory).
@@ -2004,7 +2007,7 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
 	}
 
 	if (xpad->xtype == XTYPE_XBOXONE &&
-	    intf->cur_altsetting->desc.bInterfaceNumber != 0) {
+	    intf->cur_altsetting->desc.bInterfaceNumber != GIP_WIRED_INTF_DATA) {
 		/*
 		 * The Xbox One controller lists three interfaces all with the
 		 * same interface class, subclass and protocol. Differentiate by
-- 
2.40.0