FN_INTERNAL int fnusb_num_devices(freenect_context *ctx)
{
libusb_device **devs; // pointer to pointer of device, used to retrieve a list of devices
ssize_t count = libusb_get_device_list (ctx->usb.ctx, &devs);
if (count < 0)
return (count >= INT_MIN) ? (int)count : -1;
int number_found = 0, i = 0;
struct libusb_device_descriptor desc;
for (i = 0; i < count; ++i)
{
int r = libusb_get_device_descriptor (devs[i], &desc);
if (r < 0)
{
FN_WARNING("Failed to query USB device descriptor.\n");
continue;
}
if (desc.idVendor == VID_MICROSOFT)
{
if (desc.idProduct == PID_NUI_CAMERA || desc.idProduct == PID_K4W_CAMERA)
{
number_found++;
}
else if (desc.idProduct == PID_KV2_CAMERA)
{
FN_NOTICE("Skipping Kinect v2 device (needs https://github.com/libfreenect2).\n");
}
}
}
libusb_free_device_list (devs, 1);
return number_found;
}
FREENECTAPI int freenect_shutdown(freenect_context *ctx)
{
while (ctx->first) {
FN_NOTICE("Device %p open during shutdown, closing...\n", ctx->first);
freenect_close_device(ctx->first);
}
fnusb_shutdown(&ctx->usb);
free(ctx);
return 0;
}
