Messages in this thread Patch in this message | | | From | Simon Wood <> | Subject | [PATCH 2/5] HID:hid-lg4ff: Switch autocentering off when strength is set to zero. | Date | Wed, 6 Nov 2013 12:30:41 -0700 |
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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> --- drivers/hid/hid-lg4ff.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+)
diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c index 530fcd19..49f6cc0 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 */ -- 1.8.1.2
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