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Commit 921990b7 authored by Henrik Rydberg's avatar Henrik Rydberg Committed by Jiri Kosina
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HID: magicmouse: Adjust major / minor axes to scale 



By visual inspection, the reported touch_major and touch_minor axes
are roughly a factor of four too small. The factor is approximate,
since the protocol is not known and the HID report encodes touch size
with fewer bits than positions. This patch scales the reported values
by a factor of four.

Signed-off-by: default avatarHenrik Rydberg <rydberg@euromail.se>
Signed-off-by: default avatarChase Douglas <chase.douglas@canonical.com>
Acked-by: default avatarMichael Poole <mdpoole@troilus.org>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent 64eb105d

drivers/hid/hid-magicmouse.c

+2 −2
Original line number Original line Diff line number Diff line
@@ -254,8 +254,8 @@ static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tda 
	/* Generate the input events for this touch. */

	/* Generate the input events for this touch. */

	if (report_touches && down) {

	if (report_touches && down) {

		input_report_abs(input, ABS_MT_TRACKING_ID, id);

		input_report_abs(input, ABS_MT_TRACKING_ID, id);

		input_report_abs(input, ABS_MT_TOUCH_MAJOR, touch_major);

		input_report_abs(input, ABS_MT_TOUCH_MAJOR, touch_major << 2);

		input_report_abs(input, ABS_MT_TOUCH_MINOR, touch_minor);

		input_report_abs(input, ABS_MT_TOUCH_MINOR, touch_minor << 2);

		input_report_abs(input, ABS_MT_ORIENTATION, orientation);

		input_report_abs(input, ABS_MT_ORIENTATION, orientation);

		input_report_abs(input, ABS_MT_POSITION_X, x);

		input_report_abs(input, ABS_MT_POSITION_X, x);

		input_report_abs(input, ABS_MT_POSITION_Y, y);

		input_report_abs(input, ABS_MT_POSITION_Y, y);