[PATCH 3/26] ALPS - fix wheel decoding

[Vojtech Pavlik]

Subject: [PATCH] Input: ALPS - fix wheel decoding
From: Vojtech Pavlik <vojtech@xxxxxxx>
Date: 1125816043 -0500

Signed-off-by: Vojtech Pavlik <vojtech@xxxxxxx>
Signed-off-by: Dmitry Torokhov <dtor@xxxxxxx>

---

 drivers/input/mouse/alps.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

e6c047b98bbd09473c586744c681e877ebf954ff
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -170,7 +170,7 @@ static void alps_process_packet(struct p
 	input_report_key(dev, BTN_TOOL_FINGER, z > 0);
 
 	if (priv->i->flags & ALPS_WHEEL)
-		input_report_rel(dev, REL_WHEEL, ((packet[0] >> 4) & 0x07) | ((packet[2] >> 2) & 0x08));
+		input_report_rel(dev, REL_WHEEL, ((packet[2] << 1) & 0x08) - ((packet[0] >> 4) & 0x07));
 
 	if (priv->i->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) {
 		input_report_key(dev, BTN_FORWARD, forward);

-
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