[clue-tech] X windows guru? (DeviceOff & DeviceOn)

[Jim Ockers]

Hi CLUEbies,

Does anyone know how to turn off a pointer device in XFree86?  Here's
the desired sequence of events.

1. XFree86 starts
2. pointer (touchscreen) driver loads
3. driver opens serial port & communicates with pointer device
4. user initiates calibration program
5. calibration program disables pointer device using DeviceOff
6. touchscreen driver releases serial port
7. calibration program opens serial port and user calibrates screen
8. calibration program enables pointer device using DeviceOn

We don't know how to do steps 5 & 8 - can anyone help or offer some
suggestions?  For instance I saw this sequence of events on a page I
googled:

Synaptics DeviceOn called
Synaptics DeviceOff called

Thanks,
Jim

-- 
Jim Ockers, P.Eng. (ockers at ockers.net)
Contact info: please see http://www.ockers.net/