How to do this: embedded USB-Host communication with plugged USB-Device

Question

I am currently practising with USB programming on an AT91SAM9G20-Evaluation Kit. I learned much about USB devices and USB device port drivers while "playing" with the ATMEL provided USB device port projects (CDC-driver, ..).

But now i'd like to write a small driver to controll a wireless stick which i plugged into one of the boards USB-A Host Ports.

I read a lot on stackoverflow, the OpenHCI specification and even found some libraries on the net, but i am not sure if its a good way to implement my own stack with out any "good" knowledge in USB Host Port programming.

Is there a small and easy way to control the wireless-stick at the boards USB Host port? (Like using the USART-Interfaces?)

Not sure if its just too late today or i am "blind", but can you maybe please give a hint on how to implement RTUSB or libUSB in to the AT91?

Thanks in advance!

Regards, Aureon

Answer 1

You can download AT91LIB version 1.9 from atmel from this page

The usb host libraries are under at91lib/usb/host. They're not the complete package you need though since they're just the OHCI driver -- you still need a USB driver and class drivers to implement what you want.

You could try an RTOS with USB Host support like rt-usb32