Commit 67f56bb0 authored by Daniel Drake's avatar Daniel Drake Committed by Dmitry Torokhov
Browse files

Input: hgpk - detect simple mode overflows 



Based on work by Paul Fox.

Signed-off-by: default avatarDaniel Drake <dsd@laptop.org>
Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
parent 87abb6bb

drivers/input/mouse/hgpk.c

+5 −0
Original line number Diff line number Diff line
@@ -431,6 +431,11 @@ static void hgpk_process_simple_packet(struct psmouse *psmouse) 
	int x = packet[1] - ((packet[0] << 4) & 0x100);

	int y = ((packet[0] << 3) & 0x100) - packet[2];



	if (packet[0] & 0xc0)

		hgpk_dbg(psmouse,

			 "overflow -- 0x%02x 0x%02x 0x%02x\n",

			 packet[0], packet[1], packet[2]);



	if (hgpk_discard_decay_hack(psmouse, x, y)) {

		if (tpdebug)

			hgpk_dbg(psmouse, "discarding\n");