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Handle to USB device

Hi List:

I'm working on a USB device that uses the EZ-USB AN2131 chip. I am writing a framework which will eventually serve as a USB driver for the device. The manufacturer insists that in order for this device to work under OS X, that a handle to the device must be created and this handle is referenced in every command sent to it. They say the reason is that more than one device can be plugged into the usb box. They also say that without a created handle to the device that this will not work. Below is the Windows code that they supplied. They explain that they create the handle by creating a file and the code is shown below.


bool OpenUsbDriver(){
char completeDeviceName[64] = "";
strcat (completeDeviceName,"\\\\.\\");
strcat (completeDeviceName,"xxxxx-0");


hDeviceHandle = CreateFile( completeDeviceName,
GENERIC_WRITE,
FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
0,
NULL);
if (hDeviceHandle == INVALID_HANDLE_VALUE) {
return (false);
}
return (true);
}

Is there a way to duplicate this in OS X? Or is there another way to create the handle? Help is appreciated.

Sincerely,


Mike Krugman
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