diff options
| author |   Simon Wood <simon@mungewell.org> | 2013-11-06 12:30:41 -0700 |
|---|---|---|
| committer |   Jiri Kosina <jkosina@suse.cz> | 2013-11-08 14:12:07 +0100 |
| commit | d2c02da549b468bbb28e67d269bd3c9e10683ff5 (patch) | |
| tree | cf11e63db6c804f8595e7bb0499ee803a7a6c6e4 /drivers/hid | |
| parent | HID:hid-lg4ff: Scale autocentering force properly on Logitech wheel (diff) | |
| download | linux-dev-d2c02da549b468bbb28e67d269bd3c9e10683ff5.tar.xz linux-dev-d2c02da549b468bbb28e67d269bd3c9e10683ff5.zip | |
HID:hid-lg4ff: Switch autocentering off when strength is set to zero.
When the autocenter is set to zero, this patch issues a command to
totally disable the autocenter - this results in less resistance
in the wheel.
Reported-by: Elias Vanderstuyft <elias.vds@gmail.com>
Signed-off-by: Simon Wood <simon@mungewell.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/hid-lg4ff.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c index 530fcd19e90e..49f6cc0f9919 100644 --- a/drivers/hid/hid-lg4ff.c +++ b/drivers/hid/hid-lg4ff.c @@ -220,6 +220,20 @@ static void hid_lg4ff_set_autocenter_default(struct input_dev *dev, u16 magnitud __s32 *value = report->field[0]->value; __u32 expand_a, expand_b; + /* De-activate Auto-Center */ + if (magnitude == 0) { + value[0] = 0xf5; + value[1] = 0x00; + value[2] = 0x00; + value[3] = 0x00; + value[4] = 0x00; + value[5] = 0x00; + value[6] = 0x00; + + hid_hw_request(hid, report, HID_REQ_SET_REPORT); + return; + } + if (magnitude <= 0xaaaa) { expand_a = 0x0c * magnitude; expand_b = 0x80 * magnitude; @@ -237,6 +251,17 @@ static void hid_lg4ff_set_autocenter_default(struct input_dev *dev, u16 magnitud value[6] = 0x00; hid_hw_request(hid, report, HID_REQ_SET_REPORT); + + /* Activate Auto-Center */ + value[0] = 0x14; + value[1] = 0x00; + value[2] = 0x00; + value[3] = 0x00; + value[4] = 0x00; + value[5] = 0x00; + value[6] = 0x00; + + hid_hw_request(hid, report, HID_REQ_SET_REPORT); } /* Sends autocentering command compatible with Formula Force EX */ |