[PATCH for-next] Input: xpad - add support for Flydigi Direwolf 4 paddles
From: Hani B <hidden>
Date: 2026-09-03 19:06:59
Also in:
lkml
Subsystem:
input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers:
Dmitry Torokhov, Linus Torvalds
The Flydigi Direwolf 4 clones Microsoft's Xbox 360 controller (045e:028e), identifies itself via its USB product string, and reports two rear paddles (M1 and M2) in byte 19 of its input reports. Add a probe quirk to detect the controller by string descriptor, expose its true vendor and product IDs (0x37d7:0x2414) for userspace recognition, and decode rear paddles in xpad360_process_packet(). Signed-off-by: Hani B <redacted> --- drivers/input/joystick/xpad.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+)
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index 2da0b7f1722a..f738a409d139 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c@@ -401,6 +401,7 @@ static const struct xpad_device { { 0x3651, 0x1000, "CRKD SG", 0, XTYPE_XBOX360 }, { 0x366c, 0x0005, "ByoWave Proteus Controller", MAP_SHARE_BUTTON, XTYPE_XBOXONE, FLAG_DELAY_INIT }, { 0x3767, 0x0101, "Fanatec Speedster 3 Forceshock Wheel", 0, XTYPE_XBOX }, + { 0x37d7, 0x2414, "Flydigi Direwolf 4", MAP_PADDLES, XTYPE_XBOX360 }, { 0x37d7, 0x2501, "Flydigi Apex 5", 0, XTYPE_XBOX360 }, { 0x413d, 0x2104, "Black Shark Green Ghost Gamepad", 0, XTYPE_XBOX360 }, { 0xffff, 0xffff, "Chinese-made Xbox Controller", 0, XTYPE_XBOX },
@@ -938,6 +939,12 @@ static void xpad360_process_packet(struct usb_xpad *xpad, struct input_dev *dev, input_report_abs(dev, ABS_RZ, data[5]); } + /* paddle handling */ + if (data[1] >= 20 && (xpad->mapping & MAP_PADDLES)) { + input_report_key(dev, BTN_GRIPL, data[19] & BIT(3)); + input_report_key(dev, BTN_GRIPR, data[19] & BIT(2)); + } + input_sync(dev); /* XBOX360W controllers can't be turned off without driver assistance */
@@ -1949,6 +1956,12 @@ static int xpad_init_input(struct usb_xpad *xpad) input_dev->id.product = 0x02a1; } + if (xpad->udev->product && strstr(xpad->udev->product, "Flydigi Direwolf 4")) { + /* expose true vendor and product id for Direwolf 4 */ + input_dev->id.vendor = 0x37d7; + input_dev->id.product = 0x2414; + } + input_dev->dev.parent = &xpad->intf->dev; input_set_drvdata(input_dev, xpad);
@@ -2085,6 +2098,15 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id if (xpad_device[i].flags & FLAG_DELAY_INIT) xpad->delay_init = true; + /* + * Direwolf 4 enumerates with generic Microsoft Xbox 360 VID/PID + * in PC mode; detect via product string to enable paddles. + */ + if (udev->product && strstr(udev->product, "Flydigi Direwolf 4")) { + xpad->mapping |= MAP_PADDLES; + xpad->name = udev->product; + } + xpad->packet_type = PKT_XB; INIT_WORK(&xpad->work, xpad_presence_work);
--
2.55.0