diff options
| author |   Simon Wood <gitsend@mungewell.org> | 2016-09-18 10:55:40 -0600 |
|---|---|---|
| committer |   Jiri Kosina <jkosina@suse.cz> | 2016-09-26 15:39:55 +0200 |
| commit | 7363b25af33251d036a4bedb7daed1e6bc395142 (patch) | |
| tree | aeba90c0fda2b17ed9263d688153578b83bcf206 /drivers/hid/hid-lg.c | |
| parent | HID: hid-logitech: Compute combined pedals value (diff) | |
| download | linux-dev-7363b25af33251d036a4bedb7daed1e6bc395142.tar.xz linux-dev-7363b25af33251d036a4bedb7daed1e6bc395142.zip | |
HID: hid-logitech: Rewrite of descriptor for all DF wheels
Rewrite the HID descriptor for _all_ Driving Force wheels (real
or emulated) so that they can report separate Accelerator and
Brake axis.
If the user wants a combined accel/brake axis, they can use the
'combined pedals' feature.
$ echo 1 > /sys/bus/hid/devices/<device-id>/combine_pedals
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 | 15 |
1 files changed, 1 insertions, 14 deletions
diff --git a/drivers/hid/hid-lg.c b/drivers/hid/hid-lg.c index 06f8a5e0fc8f..ffcf4f162ea5 100644 --- a/drivers/hid/hid-lg.c +++ b/drivers/hid/hid-lg.c @@ -343,8 +343,6 @@ static __u8 *lg_report_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int *rsize) { struct lg_drv_data *drv_data = hid_get_drvdata(hdev); - struct usb_device_descriptor *udesc; - __u16 bcdDevice, rev_maj, rev_min; if ((drv_data->quirks & LG_RDESC) && *rsize >= 91 && rdesc[83] == 0x26 && rdesc[84] == 0x8c && rdesc[85] == 0x02) { @@ -365,18 +363,7 @@ static __u8 *lg_report_fixup(struct hid_device *hdev, __u8 *rdesc, /* Several wheels report as this id when operating in emulation mode. */ case USB_DEVICE_ID_LOGITECH_WHEEL: - udesc = &(hid_to_usb_dev(hdev)->descriptor); - if (!udesc) { - hid_err(hdev, "NULL USB device descriptor\n"); - break; - } - bcdDevice = le16_to_cpu(udesc->bcdDevice); - rev_maj = bcdDevice >> 8; - rev_min = bcdDevice & 0xff; - - /* Update the report descriptor for only the Driving Force wheel */ - if (rev_maj == 1 && rev_min == 2 && - *rsize == DF_RDESC_ORIG_SIZE) { + if (*rsize == DF_RDESC_ORIG_SIZE) { hid_info(hdev, "fixing up Logitech Driving Force report descriptor\n"); rdesc = df_rdesc_fixed; |