internal static extern Boolean DeviceIoControl(IntPtr hDevice,
Int32 dwIoControlCode,
ref UsbDescriptorRequest lpInBuffer,
Int32 nInBufferSize,
ref UsbDescriptorRequest lpOutBuffer,
Int32 nOutBufferSize,
out Int32 lpBytesReturned,
IntPtr lpOverlapped);
//public static IEnumerable<Datas.UsbNodeConnectionInformation> GetUsbNodeConnectionInformation(String devicePath,Int32 numberOfPorts)
//{
// if (String.IsNullOrWhiteSpace(devicePath)) return null;
// IntPtr hcdPtr = Win32Api.CreateFile($@"\\.\{devicePath}",
// NativeFileAccess.GENERIC_WRITE,
// NativeFileShare.FILE_SHARE_WRITE,
// IntPtr.Zero,
// NativeFileMode.OPEN_EXISTING,
// IntPtr.Zero,
// IntPtr.Zero);
// if (hcdPtr == Win32Api.INVALID_HANDLE_VALUE) return null;
// Datas.UsbNodeConnectionInformation[] connections = new Datas.UsbNodeConnectionInformation[numberOfPorts];
// Boolean status;
// UsbNodeConnectionInformationEx buffer = new UsbNodeConnectionInformationEx();
// for (Int32 i = 1; i <= numberOfPorts; i++)
// {
// status = Win32Api.DeviceIoControl(hcdPtr,
// Win32Api.IOCTL_USB_GET_NODE_CONNECTION_INFORMATION_EX,
// ref buffer,
// Marshal.SizeOf(buffer),
// ref buffer,
// Marshal.SizeOf(buffer),
// out int bytesReturned,
// IntPtr.Zero);
// if (status)
// {
// Datas.UsbNodeConnectionInformation connection = new Datas.UsbNodeConnectionInformation
// {
// DevicePath = devicePath,
// ConnectionIndex = buffer.ConnectionIndex,
// ConnectionStatus = bucffer.ConnectionStatus,
// };
// }
// }
//}
#region Descriptors
/// <summary>
/// 获取字符串描述符。
/// </summary>
/// <param name="hubDevice"></param>
/// <param name="connectionIndex"></param>
/// <param name="descriptorIndex"></param>
/// <param name="languageId"></param>
/// <returns></returns>
public static String GetStringDescriptor(IntPtr hubDevice, Int32 connectionIndex, Byte descriptorIndex, UInt16 languageId)
{
UsbDescriptorRequest buffer = new UsbDescriptorRequest();
buffer.ConnectionIndex = connectionIndex;
buffer.SetupPacket.Value = (UInt16)((Globals.USB_STRING_DESCRIPTOR_TYPE << 8) | descriptorIndex);
buffer.SetupPacket.Length = Globals.MAXIMUM_USB_STRING_LENGTH;
Boolean status = Win32Api.DeviceIoControl(hubDevice,
Win32Api.IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION,
ref buffer,
Marshal.SizeOf(buffer),
ref buffer,
Marshal.SizeOf(buffer),
out Int32 bytesReturned,
IntPtr.Zero);
return(status ? buffer.Data.String : null);
}
static async Task <UsbConfigurationDescriptors> GetConfigurationDescriptor(DeviceFile hub, ushort connectionIndex, byte numConfigurations)
{
var result = new UsbConfigurationDescriptors();
for (byte configIndex = 0; configIndex < numConfigurations; ++configIndex)
{
var buf = new byte[Marshal.SizeOf <UsbDescriptorRequest>() + Marshal.SizeOf <UsbConfigurationDescriptor>()];
var request = new UsbDescriptorRequest()
{
ConnectionIndex = connectionIndex,
SetupPacket =
{
wLength = (ushort)Marshal.SizeOf <UsbConfigurationDescriptor>(),
wValue = (ushort)(((byte)UsbDescriptorType.USB_CONFIGURATION_DESCRIPTOR_TYPE << 8) | configIndex)
}
};
StructToBytes(request, buf, 0);
await hub.IoControlAsync(IoControl.IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION, buf, buf);
BytesToStruct(buf, Marshal.SizeOf <UsbDescriptorRequest>(), out UsbConfigurationDescriptor configuration);
buf = new byte[Marshal.SizeOf <UsbDescriptorRequest>() + configuration.wTotalLength];
request = new UsbDescriptorRequest()
{
ConnectionIndex = connectionIndex,
SetupPacket =
{
wLength = configuration.wTotalLength,
wValue = (ushort)(((byte)UsbDescriptorType.USB_CONFIGURATION_DESCRIPTOR_TYPE << 8) | configIndex)
}
};
StructToBytes(request, buf, 0);
await hub.IoControlAsync(IoControl.IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION, buf, buf);
result.AddDescriptor(buf.AsSpan(Marshal.SizeOf <UsbDescriptorRequest>()));
}
return(result);
}
