[meta-freescale] imx6q: dual touch displays

[Prasant J]

Hi,

I'm using custom hardware design based on imx6qsabresd. I have two
touch displays connected (HDMI + LVDS) and both are multi-touch. The
touch controller on both the displays are eGalax.

My two applications take /dev/input/eventX as arguments to take events
from a particular touchscreen.

My problem is that during boot up any one of the two touch controllers
may be configured first so it effects the links created in
/dev/input/eventX. The one which is configured first gets
/dev/input/event0 and the other gets /dev/input/event2.

The USB Vendor ID for both controllers is: 0x0EEF , while the product
IDs are 0x7224 and 0xB100.


Any ideas on how can I guarantee or find out by means of a shell
script which touch controller is associated with a particular event
device file?


Any suggestions