public UsbDevice(LibUsb libusb, UsbDescriptor descriptor, int configuration, byte control_endpoint)
{
this.libusb = libusb;
this.descriptor = descriptor;
this.configuration = configuration;
this.control_endpoint = control_endpoint;
var status = libusb.open(descriptor.device, out device_handle);
if (status != 0)
{
throw new IOException($"libusb.open_device: {libusb.StrError(status)}");
}
status = libusb.get_configuration(device_handle, out var current_conf);
if (status != 0)
{
libusb.close(device_handle);
throw new IOException($"libusb.get_configuration: {libusb.StrError(status)}");
}
if (configuration != current_conf)
{
status = libusb.set_configuration(device_handle, configuration);
if (status != 0)
{
libusb.close(device_handle);
throw new IOException($"libusb.set_configuration: {libusb.StrError(status)}");
}
}
}
public UsbDevice Open(UsbDescriptor descriptor, int configuration, byte control_endpoint = 0x80)
{
return(new UsbDevice(libusb, descriptor, configuration, control_endpoint));
}