New ALPS not detected EC=88 b6 06 - Lenovo Ideapad Flex 15D

[Omar Loggiodice <ologgio@yahoo.com>]

Hi,


   First, thank you for your excellent work. I recently bought a new Lenovo Ideapad Flex 15D, it comes with Windows 8.1.

I have been able to run linux, however the ALPS touchpad is only recognized as a PS/2 mouse. I also have some problems with the screen 
turning off and the GPU stalling, but this is outside of the scope of 
this list.  This is what dmesg shows for the touchpad:

psmouse serio1: alps: Unknown ALPS touchpad: E7=73 03 0a, EC=88 b6 06

I hacked alps.c with the following code in alps_identify(...):

[...]

} else if (ec[0] == 0x88 && ec[1] == 0xb6 &&
                   ec[2] == 0x06 )
 {
                priv->proto_version = ALPS_PROTO_V5;
                alps_set_defaults(priv); 

                return 0;
        }
[...]

With this code the module seems to recognize the card and dmesg reports the following:

[  791.663876] input: PS/2 Mouse as /devices/platform/i8042/serio1/input/input22
[  791.692023] input: AlpsPS/2 ALPS GlidePoint as /devices/platform/i8042/serio1/input/input21


However, the touchpad still operates only as a PS/2 mouse (no scroll, no middle 
button emulation, no touch gestures) even if I disable the PS/2 mouse 
with xinput.

any help would be appreciated, I am willing to test patches if you send them to me.

Thanks!
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