[PATCH synaptics] Implement a workaround for Elantech touchpads

[Chase Douglas]

On 03/01/2012 05:21 PM, Peter Hutterer wrote:
> From: Peter Zotov<whitequark at whitequark.org>
>
> All Elantech touchpads report the number of fingers explicitly,
> and at least the v3 version of the hardware can report any
> pressure values down to zero. This interferes with the tap
> detection hysteresis, which is required for dumb touchpads.
>
> This commit implements a vendor-specific workaround for Elantech
> touchpads which sets the FingerLow and FingerHigh options to 1
> by default, effectively disabling the hysteresis mechanism.
>
> Signed-off-by: Peter Zotov<whitequark at whitequark.org>
> Reviewed-by: Peter Hutterer<peter.hutterer at who-t.net>

Makes sense to me.

Reviewed-by: Chase Douglas <chase.douglas at canonical.com>