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Commit dc1d97e4 authored by Ping Cheng's avatar Ping Cheng Committed by Linus Torvalds
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[PATCH] USB: fix usb wacom tablet driver bug 



This patch fixes bug 4905 and a Cintiq 21UX bug.

Signed-off-by: default avatarPing Cheng <pingc@wacom.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 33a5c724

drivers/usb/input/wacom.c

+10 −11
Original line number Diff line number Diff line
@@ -342,9 +342,6 @@ static void wacom_graphire_irq(struct urb *urb, struct pt_regs *regs) 
		goto exit;

	}



	x = le16_to_cpu(*(__le16 *) &data[2]);

	y = le16_to_cpu(*(__le16 *) &data[4]);



	input_regs(dev, regs);



	if (data[1] & 0x10) { /* in prox */
@@ -373,16 +370,18 @@ static void wacom_graphire_irq(struct urb *urb, struct pt_regs *regs) 
		}

	}



	if (data[1] & 0x80) {

	if (data[1] & 0x90) {

		x = le16_to_cpu(*(__le16 *) &data[2]);

		y = le16_to_cpu(*(__le16 *) &data[4]);

		input_report_abs(dev, ABS_X, x);

		input_report_abs(dev, ABS_Y, y);

	}

		if (wacom->tool[0] != BTN_TOOL_MOUSE) {

			input_report_abs(dev, ABS_PRESSURE, le16_to_cpu(*(__le16 *) &data[6]));

			input_report_key(dev, BTN_TOUCH, data[1] & 0x01);

			input_report_key(dev, BTN_STYLUS, data[1] & 0x02);

			input_report_key(dev, BTN_STYLUS2, data[1] & 0x04);

		}

	}



	input_report_key(dev, wacom->tool[0], data[1] & 0x10);

	input_sync(dev);
@@ -568,7 +567,7 @@ static void wacom_intuos_irq(struct urb *urb, struct pt_regs *regs) 


	/* Cintiq doesn't send data when RDY bit isn't set */

	if ((wacom->features->type == CINTIQ) && !(data[1] & 0x40))

		return;

		goto exit;



	if (wacom->features->type >= INTUOS3) {

		input_report_abs(dev, ABS_X, (data[2] << 9) | (data[3] << 1) | ((data[9] >> 1) & 1));