diff options
| author | Simon Wood <simon@mungewell.org> | 2013-11-06 12:30:42 -0700 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2013-11-08 14:12:08 +0100 |
| commit | 56930e7ab86f9f453399cfaa4d78525c1e028a8f (patch) | |
| tree | 812767ac0fc81dbb71499e29f981be377eed8b06 | |
| parent | d2c02da549b468bbb28e67d269bd3c9e10683ff5 (diff) | |
HID:hid-lg4ff: ensure ConstantForce is disabled when set to 0
When 'Constant Force' is set to 0 it is not turned off completely,
the wheel feels 'heavy'. This patch issues the '13 00..' command
to ensure that the force in slot 1 (the Constant Force) is
deactivated.
Reported-by: Elias Vanderstuyft <elias.vds@gmail.com>
Signed-off-by: Simon Wood <simon@mungewell.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| -rw-r--r-- | drivers/hid/hid-lg4ff.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c index 49f6cc0f991..5d140b7a450 100644 --- a/drivers/hid/hid-lg4ff.c +++ b/drivers/hid/hid-lg4ff.c @@ -196,6 +196,21 @@ static int hid_lg4ff_play(struct input_dev *dev, void *data, struct ff_effect *e case FF_CONSTANT: x = effect->u.ramp.start_level + 0x80; /* 0x80 is no force */ CLAMP(x); + + if (x == 0x80) { + /* De-activate force in slot-1*/ + value[0] = 0x13; + 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 0; + } + value[0] = 0x11; /* Slot 1 */ value[1] = 0x08; value[2] = x; |