要設置WinUSB設備的端點,首先需要打開設備并獲取其接口。然后,使用WinUSB API函數WinUsb_SetPipePolicy來設置端點的屬性。以下是一個簡單的C#示例代碼,用于設置WinUSB設備的端點:
using System;
using System.Runtime.InteropServices;
class Program
{
[StructLayout(LayoutKind.Sequential)]
struct WINUSB_PIPE_INFORMATION
{
public byte PipeType;
public byte PipeId;
public ushort MaximumPacketSize;
public byte Interval;
}
[DllImport("winusb.dll", SetLastError = true)]
public static extern bool WinUsb_SetPipePolicy(IntPtr interfaceHandle, byte pipeID, uint policyType, uint valueLength, ref object value);
static void Main()
{
//打開設備并獲取接口
IntPtr interfaceHandle = IntPtr.Zero;
//TODO: 打開設備并獲取接口
//設置端點屬性
byte pipeID = 0x81; //端點ID
uint policyType = 1; //設置屬性類型
WINUSB_PIPE_INFORMATION pipeInfo = new WINUSB_PIPE_INFORMATION();
pipeInfo.PipeType = 0x02; //設置端點類型
pipeInfo.PipeId = pipeID;
pipeInfo.MaximumPacketSize = 64; //設置最大包大小
pipeInfo.Interval = 0; //設置間隔
bool success = WinUsb_SetPipePolicy(interfaceHandle, pipeID, policyType, (uint)Marshal.SizeOf(pipeInfo), ref pipeInfo);
if (success)
{
Console.WriteLine("設置端點屬性成功");
}
else
{
Console.WriteLine("設置端點屬性失敗");
}
}
}
請注意,以上示例代碼需要使用WinUSB API函數,因此需要包含winusb.dll,并且需要在項目中引用System.Runtime.InteropServices命名空間。在實際應用中,您需要使用正確的端點ID和其他屬性值來設置WinUSB設備的端點。