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Commit d2c02da5 authored by Simon Wood's avatar Simon Wood Committed by Jiri Kosina
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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: default avatarElias Vanderstuyft <elias.vds@gmail.com>
Signed-off-by: default avatarSimon Wood <simon@mungewell.org>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent f8c23156

drivers/hid/hid-lg4ff.c

+25 −0
Original line number Original line Diff line number Diff line
@@ -220,6 +220,20 @@ static void hid_lg4ff_set_autocenter_default(struct input_dev *dev, u16 magnitud 
	__s32 *value = report->field[0]->value;

	__s32 *value = report->field[0]->value;

	__u32 expand_a, expand_b;

	__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) {

	if (magnitude <= 0xaaaa) {

		expand_a = 0x0c * magnitude;

		expand_a = 0x0c * magnitude;

		expand_b = 0x80 * 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;

	value[6] = 0x00;





	hid_hw_request(hid, report, HID_REQ_SET_REPORT);

	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 */

/* Sends autocentering command compatible with Formula Force EX */