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 <[email protected]> Signed-off-by: Simon Wood <[email protected]> --- drivers/hid/hid-lg4ff.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c index 49f6cc0..5d140b7 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; -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
