According to documentation, all 7 lower bits represents trackpoint pressure.
Fixes: 4621c9660459 ("Input: alps - report pressure of v3 and v7 trackstick")
Signed-off-by: Pali Rohár <pali.ro...@gmail.com>
---
drivers/input/mouse/alps.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 0a9e6a3a2f9f..1e28d9fc5492 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -583,7 +583,7 @@ static void alps_process_trackstick_packet_v3(struct
psmouse *psmouse)
x = (s8)(((packet[0] & 0x20) << 2) | (packet[1] & 0x7f));
y = (s8)(((packet[0] & 0x10) << 3) | (packet[2] & 0x7f));
- z = packet[4] & 0x7c;
+ z = packet[4] & 0x7f;
/*
* The x and y values tend to be quite large, and when used
--
2.11.0
