I am attempting to interface to a Zytronics touch screen using a Sparkfun USB Host Shield (DEV-09947) for the Arduino. I have jumped pins D7 to RST to make it compatible with the USB Host Shield 2.0 library by Oleg (linked to on the products page). I have successfully interfaced to a CycloTouch touch screen and a USB mouse in the past, and I can confirm that using my current configuration I can still interface to them.
When I try to interface to a Zytronics touch screen I can confirm I am connected to the right endpoint (0x81), however once I try and read data coming through in the form of a touch I get the error code 7 (hrWRONGPID). Is this a fault of the Sparkfun board or is this a fault of Zytronics? I can confirm that the Zytronics touch screen works on Windows.