USB device host application

[fatboyslim]

am new to USB and i want to develop a windows application in vc++ which can read and write data to the USB device. The USB device is on an aplication board with USB interface. I have taken the HANDLE of the device using createfile function, But now i want to write data to this device using writefile or deviceIoControl , and i am getting a return error code of value 1, which means Wrong function.

Does anyone has some idea
Please help
Thanx in advance

[frbowen]

is the device an HID?

[frbowen]

if it is an HID, check out this website:

http://www.lvr.com/hidpage.htm#MyExampleCode