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Date:	Tue, 6 Oct 2009 21:54:13 +0200
From:	Pavel Machek <pavel@....cz>
To:	dtor@...l.ru, dmitry.torokhov@...il.com,
	linux-input@...r.kernel.org
Cc:	kernel list <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...l.org>
Subject: ads7846 touchscreen: fix pressure


On Zaurus, pressure is reported inverted -- the lighter the pressure,
the bigger numerical value. This should fix it.

Signed-off-by: Pavel Machek <pavel@....cz>

--- linux-rc/drivers/input.ofic/touchscreen/ads7846.c	2009-10-06 13:49:56.000000000 +0200
+++ linux-rc/drivers/input/touchscreen/ads7846.c	2009-10-06 21:18:25.000000000 +0200
@@ -608,12 +609,12 @@
 
 		input_report_abs(input, ABS_X, x);
 		input_report_abs(input, ABS_Y, y);
-		input_report_abs(input, ABS_PRESSURE, Rt);
+		input_report_abs(input, ABS_PRESSURE, ts->pressure_max-Rt);
 
 		input_sync(input);
 #ifdef VERBOSE
 		dev_dbg(&ts->spi->dev, "%4d/%4d/%4d\n", x, y, Rt);
 #endif
 	}
 
 	hrtimer_start(&ts->timer, ktime_set(0, TS_POLL_PERIOD),

-- 
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(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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