Determine system path for HID devices - c++

Question

I am searching for a way to dynamically find the system path for HID (USB) devices.
On my Ubuntu machine it's /dev/usb/hiddevX, but I suppose there are distros where hiddevices get mounted elsewhere.
To be more specific: I need this in a C program to open a HID device - this should work on every system, no matter where the devices are mounted.
Current function:
int openDevice(int vendorId, int productId) {
char devicePath[24];
unsigned int numIterations = 10, i, handle;
for (i = 0; i < numIterations; i++) {
sprintf(devicePath, "/dev/usb/hiddev%d", i);
if((handle = open(devicePath, O_RDONLY)) >= 0) {
if(isDesiredDevice(handle, vendorId, productId))
break;
close(handle);
}
}
if (i >= numIterations) {
ThrowException(Exception::TypeError(String::New("Could not find device")));
}
return handle;
}
It works well but I don't like the hardcoded /dev/usb/hiddev
Edit: It turned out that some other programmers use fallbacks to /dev/usb/hid/hiddevX and /dev/hiddevX, so I built in those fallbacks too.
Updated method:
/**
* Returns the correct handle (file descriptor) on success
*
* #param int vendorId
* #param int productId
* #return int
*/
int IO::openDevice(int vendorId, int productId) {
char devicePath[24];
const char *devicePaths[] = {
"/dev/usb/hiddev\%d",
"/dev/usb/hid/hiddev\%d",
"/dev/hiddev\%d",
NULL
};
unsigned int numIterations = 15, i, j, handle;
for (i = 0; devicePaths[i]; i++) {
for (j = 0; j < numIterations; j++) {
sprintf(devicePath, devicePaths[i], j);
if((handle = open(devicePath, O_RDONLY)) >= 0) {
if(isDesiredDevice(handle, vendorId, productId))
return handle;
close(handle);
}
}
};
ThrowException(Exception::Error(String::New("Couldn't find device!")));
return 0;
};