How to start with USB HOST (usb touchscreen) (only one interrupt endpoint)

[GUlfi.1]

Hi,

I want to use usb "3M Touch screen" wchich is part of 21" display with STM32F4 with usb host.

Touchscreen controller is vendor specyfic but has only 1 interrupt endpoint (wchich i confirmed using logic analyzer). Data format is very simple but i cant make a connection.

What is the best way to start with it? I cant find any example dealing with interrupt endpoint or example/documentation about writing custom class/device code.

Thanks,

Greg