about usb connection

[clement2011]

Hi:

I am newbie to usb development. I have try to use usb lib to connect and get data from usb device, however,
I still have no idea and clear knowledge about usb connection. To clarify that, I hope to write a usb connection in c# myself.
However, I don't know how to start it. Could anyone give me any suggestion about that,or any books and articles describing
it easy and understandable. Thanks a lot. 

[Jan Axelson]

Start by reading the first 3 questions and answers here:

http://www.lvr.com/usbfaq.htm

Assuming you're accessing an existing device (not one you're developing), you need to find out what driver the host system uses to communicate with the device.

Jan

[clement2011]

Thanks