CRTouch: TouchPending signal unused

[elnicoCZ]

The CRTouch device has a TouchPending signal, used to signalize new data available. eGUI does not use the signal, it reads the RTSRDY field of the Resistive Touch Status Register 1 instead. That causes high load to the I2C bus.

User should be allowed to define the TouchPending signal which should be then used by eGUI to check for ready data.

[Gargy007]

This is possible the CRTOUCH driver has not been tune up in history. It was just very simple example how the CRTOUC can be controlled. As I see now not so smart :-).