Re: 2.6.28 thinks that my PS/2 mouse is a touchpad
From: Alexander E. Patrakov
Date: Tue Dec 30 2008 - 01:04:42 EST
Arjan Opmeer wrote:
On Sat, Dec 27, 2008 at 02:06:29PM +0500, Alexander E. Patrakov wrote:
elantech.c: Elantech version query result 0x00, 0x01, 0x64.
elantech.c: assuming hardware version 1, firmware version 0.100
elantech.c: Synaptics capabilities query result 0x00, 0x02, 0x64.
However, all version query results I have seen from Elantech touchpads have
a non-zero first byte and a zero second byte. So we could test for that to
prevent this mouse from being detected as a touchpad.
Dmitry, do you think something like this is sufficient?
--- elantech.c.ORIG 2008-12-29 19:35:01.000000000 +0100
+++ elantech.c.NEW 2008-12-29 19:38:59.000000000 +0100
@@ -618,6 +618,10 @@ int elantech_init(struct psmouse *psmous
}
pr_info("elantech.c: Elantech version query result 0x%02x, 0x%02x, 0x%02x.\n",
param[0], param[1], param[2]);
+ if (param[0] == 0 || param[1] != 0) {
+ pr_info("elantech.c: Probably not a real Elantech touchpad. Aborting.\n");
+ goto init_fail;
+ }
etd->fw_version_maj = param[0];
etd->fw_version_min = param[2];
This is still slightly wrong. The mouse does work, but is misnamed in
the dmesg output and in /proc/bus/input/devices:
psmouse serio1: ID: 10 00 64<6>elantech.c: Elantech version query result
0x00, 0x01, 0x64.
elantech.c: Probably not a real Elantech touchpad. Aborting.
input: ImExPS/2 Elantech Touchpad as /class/input/input8
I: Bus=0011 Vendor=0002 Product=0006 Version=0000
N: Name="ImExPS/2 Elantech Touchpad"
P: Phys=isa0060/serio1/input0
S: Sysfs=/class/input/input8
U: Uniq=
H: Handlers=mouse1 event6
B: EV=7
B: KEY=1f0000 0 0 0 0 0 0 0 0
B: REL=143
--
Alexander E. Patrakov
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/