diff options
| author | Simon Wood <gitsend@mungewell.org> | 2016-09-18 19:55:39 +0300 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2016-09-26 16:39:55 +0300 |
| commit | b456634b8d08b184a437bba55ac0efe7ef02d3b3 (patch) | |
| tree | 1fc15dce948a896775f436c2679803fd6f5398cf /drivers/hid/hid-lg4ff.c | |
| parent | c832f86effbcf8833fc2c842aa501ce1eb4d0478 (diff) | |
| download | linux-b456634b8d08b184a437bba55ac0efe7ef02d3b3.tar.xz | |
HID: hid-logitech: Compute combined pedals value
Add support for computing a combined accelerator/brake axis for wheels
which don't contain combined data in their HID stream.
This includes DFGT, G25, G27, G29 and Wii-Wheel.
Signed-off-by: Simon Wood <simon@mungewell.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-lg4ff.c')
| -rw-r--r-- | drivers/hid/hid-lg4ff.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c index 79d34c2f639b..cc5c9ebd12a1 100644 --- a/drivers/hid/hid-lg4ff.c +++ b/drivers/hid/hid-lg4ff.c @@ -332,6 +332,7 @@ int lg4ff_adjust_input_event(struct hid_device *hid, struct hid_field *field, int lg4ff_raw_event(struct hid_device *hdev, struct hid_report *report, u8 *rd, int size, struct lg_drv_data *drv_data) { + int offset; struct lg4ff_device_entry *entry = drv_data->device_props; if (!entry) @@ -353,9 +354,25 @@ int lg4ff_raw_event(struct hid_device *hdev, struct hid_report *report, rd[5] = rd[4]; rd[6] = 0x7F; return 1; + case USB_DEVICE_ID_LOGITECH_G25_WHEEL: + case USB_DEVICE_ID_LOGITECH_G27_WHEEL: + offset = 5; + break; + case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL: + case USB_DEVICE_ID_LOGITECH_G29_WHEEL: + offset = 6; + break; + case USB_DEVICE_ID_LOGITECH_WII_WHEEL: + offset = 3; + break; default: return 0; } + + /* Compute a combined axis when wheel does not supply it */ + rd[offset] = (0xFF + rd[offset] - rd[offset+1]) >> 1; + rd[offset+1] = 0x7F; + return 1; } return 0; |