diff options
| author | Simon Wood <simon@mungewell.org> | 2015-11-02 15:56:52 +0100 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2015-11-06 21:18:06 +0100 |
| commit | 29fae1c85166ef525b8b6518e749295e0c9d1e20 (patch) | |
| tree | 709315d3d46ca1c33de9e4a681e70d93e1e99e64 /drivers/hid/hid-lg.c | |
| parent | HID: logitech: Simplify wheel detection scheme (diff) | |
| download | linux-29fae1c85166ef525b8b6518e749295e0c9d1e20.tar.xz linux-29fae1c85166ef525b8b6518e749295e0c9d1e20.zip | |
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>
Diffstat (limited to 'drivers/hid/hid-lg.c')
| -rw-r--r-- | drivers/hid/hid-lg.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/hid/hid-lg.c b/drivers/hid/hid-lg.c index 5332fb7d072a..c20ac76c0a8c 100644 --- a/drivers/hid/hid-lg.c +++ b/drivers/hid/hid-lg.c @@ -620,6 +620,7 @@ static int lg_input_mapped(struct hid_device *hdev, struct hid_input *hi, 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_event(struct hid_device *hdev, struct hid_field *field, 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"); |