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Commit 5dfb5f1d authored by Daniel Ritz's avatar Daniel Ritz Committed by Greg Kroah-Hartman
Browse files

usbtouchscreen: fix data reading for ITM touchscreens 



ITM devices seem to report only garbage when not touched. update usbtouchscreen
to do data reading like itmtouch. also fix wrong mask on pressure bits.

Signed-off-by: default avatarDaniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 9ab99c8c

drivers/usb/input/usbtouchscreen.c

+2 −2
Original line number Diff line number Diff line
@@ -256,10 +256,10 @@ static int itm_read_data(unsigned char *pkt, int *x, int *y, int *touch, int *pr 
{

	*x = ((pkt[0] & 0x1F) << 7) | (pkt[3] & 0x7F);

	*y = ((pkt[1] & 0x1F) << 7) | (pkt[4] & 0x7F);

	*press = ((pkt[2] & 0x1F) << 7) | (pkt[5] & 0x7F);

	*press = ((pkt[2] & 0x01) << 7) | (pkt[5] & 0x7F);

	*touch = ~pkt[7] & 0x20;



	return 1;

	return *touch;

}

#endif