ALPS v7 touchpad

Hi,

I'm using an ALPS v7 touchpad on an HP Revolve 810. I just compiled
linuxnext-20140807, which has the recent patches discussed on this
list to give it support. But there's an issue: selecting text doesn't
really work, as the driver gives multiple ButtonPress and
ButtonRelease events when I attempt a click-drag.

Here's the relevant line from the current dmesg:

Aug  7 17:37:17 tulip kernel: [    4.092326] input: AlpsPS/2 ALPS DualPoint TouchPad as /devices/platform/i8042/serio4/input/input11

Since that's maybe not so informative, here's an older kernel that didn't recognize it:

Aug  7 17:23:28 tulip kernel: [    3.671749] psmouse serio4: alps: ALPS touchpad: E7=73 03 0a, EC=88 b3 18

I've attached some xev output where I attempted a click-drag. In the
first I clicked with my index finger and then moved it; in the second
I clicked with my thumb, then put down my index finger and attempted
to drag. The first log gives only a single ButtonPress event, but it's
really difficult to execute.

Any help is greatly appreciated! I had previously been using a patch
from Elaine Chen that she wrote back in January-February; she
indicated there are slightly different versions of the firmware.

--Dylan Thurston