public static unsafe UsbInterfaceInfo FromUsbInterfaceDescriptor(LibUsb.UsbDevice device, InterfaceDescriptor descriptor)
{
Debug.Assert(descriptor.DescriptorType == (int)DescriptorType.Interface, "A config descriptor was expected");
UsbInterfaceInfo value = new UsbInterfaceInfo();
value.AlternateSetting = descriptor.AlternateSetting;
var endpoints = (EndpointDescriptor *)descriptor.Endpoint;
for (int i = 0; i < descriptor.NumEndpoints; i++)
{
if (endpoints[i].DescriptorType != 0)
{
value.endpoints.Add(UsbEndpointInfo.FromUsbEndpointDescriptor(endpoints[i]));
}
}
value.RawDescriptors = new byte[descriptor.ExtraLength];
if (descriptor.ExtraLength > 0)
{
Span <byte> extra = new Span <byte>(descriptor.Extra, descriptor.ExtraLength);
extra.CopyTo(value.RawDescriptors);
}
value.Interface = device.GetStringDescriptor(descriptor.Interface, failSilently: true);
value.Class = (ClassCode)descriptor.InterfaceClass;
value.Number = descriptor.InterfaceNumber;
value.Protocol = descriptor.InterfaceProtocol;
value.SubClass = descriptor.InterfaceSubClass;
return(value);
}
public static UsbDeviceInfo FromUsbDeviceDescriptor(LibUsb.UsbDevice device, DeviceDescriptor descriptor)
{
Debug.Assert(descriptor.DescriptorType == (int)DescriptorType.Device, "A config descriptor was expected");
var value = new UsbDeviceInfo();
value.Device = descriptor.Device;
value.DeviceClass = descriptor.DeviceClass;
value.DeviceProtocol = descriptor.DeviceProtocol;
value.DeviceSubClass = descriptor.DeviceSubClass;
value.ProductId = descriptor.IdProduct;
value.VendorId = descriptor.IdVendor;
value.Manufacturer = device.GetStringDescriptor(descriptor.Manufacturer, failSilently: true);
value.MaxPacketSize0 = descriptor.MaxPacketSize0;
for (byte i = 0; i < descriptor.NumConfigurations; i++)
{
if (device.TryGetConfigDescriptor(i, out var configDescriptor))
{
value.configurations.Add(configDescriptor);
}
}
value.Product = device.GetStringDescriptor(descriptor.Product, failSilently: true);
value.SerialNumber = device.GetStringDescriptor(descriptor.SerialNumber, failSilently: true);
value.Usb = descriptor.USB;
return(value);
}
public static unsafe Collection <UsbInterfaceInfo> FromUsbInterface(LibUsb.UsbDevice device, Interface @interface)
{
var interfaces = (InterfaceDescriptor *)@interface.Altsetting;
Collection <UsbInterfaceInfo> value = new Collection <UsbInterfaceInfo>();
for (int i = 0; i < @interface.NumAltsetting; i++)
{
value.Add(FromUsbInterfaceDescriptor(device, interfaces[i]));
}
return(value);
}
