HID: logitech: Add support for G29
At present the G29 is mis-identified as a DFGT, this patch ensures
that the wheel is correctly detected and allows setting the LEDs and
turning range via the '/sys' interface.
This wheel can also emulate other types of Logitech wheels.
Signed-off-by: Simon Wood <simon@mungewell.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/hid-lg.c b/drivers/hid/hid-lg.c
index 5332fb7..c20ac76 100644
--- a/drivers/hid/hid-lg.c
+++ b/drivers/hid/hid-lg.c
@@ -620,6 +620,7 @@
usage->code == ABS_Y || usage->code == ABS_Z ||
usage->code == ABS_RZ)) {
switch (hdev->product) {
+ case USB_DEVICE_ID_LOGITECH_G29_WHEEL:
case USB_DEVICE_ID_LOGITECH_WHEEL:
case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL:
case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
@@ -658,10 +659,18 @@
static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
+ struct usb_interface *iface = to_usb_interface(hdev->dev.parent);
+ __u8 iface_num = iface->cur_altsetting->desc.bInterfaceNumber;
unsigned int connect_mask = HID_CONNECT_DEFAULT;
struct lg_drv_data *drv_data;
int ret;
+ /* Only work with the 1st interface (G29 presents multiple) */
+ if (iface_num != 0) {
+ dbg_hid("%s: ignoring ifnum %d\n", __func__, iface_num);
+ return -ENODEV;
+ }
+
drv_data = kzalloc(sizeof(struct lg_drv_data), GFP_KERNEL);
if (!drv_data) {
hid_err(hdev, "Insufficient memory, cannot allocate driver data\n");