我需要获得连接到windows ce 6.0设备的usb棒的序列号。我尝试了KernelIoControl
,我得到了窗口ce 6.0设备的序列号,但没有连接到它的usb。
private static string GetDeviceID()
{
// Initialize the output buffer to the size of a
// Win32 DEVICE_ID structure.
byte[] outbuff = new byte[20];
Int32 dwOutBytes;
bool done = false;
Int32 nBuffSize = outbuff.Length;
// Set DEVICEID.dwSize to size of buffer. Some platforms look at
// this field rather than the nOutBufSize param of KernelIoControl
// when determining if the buffer is large enough.
BitConverter.GetBytes(nBuffSize).CopyTo(outbuff, 0);
dwOutBytes = 0;
// Loop until the device ID is retrieved or an error occurs.
while (!done)
{
if (KernelIoControl(IOCTL_HAL_GET_DEVICEID, IntPtr.Zero,
0, outbuff, nBuffSize, ref dwOutBytes))
{
done = true;
}
else
{
int error = Marshal.GetLastWin32Error();
switch (error)
{
case ERROR_NOT_SUPPORTED:
throw new NotSupportedException(
"IOCTL_HAL_GET_DEVICEID is not supported on this device",
new Win32Exception(error));
case ERROR_INSUFFICIENT_BUFFER:
// The buffer is not big enough for the data. The
// required size is in the first 4 bytes of the output
// buffer (DEVICE_ID.dwSize).
nBuffSize = BitConverter.ToInt32(outbuff, 0);
outbuff = new byte[nBuffSize];
// Set DEVICEID.dwSize to size of buffer. Some
// platforms look at this field rather than the
// nOutBufSize param of KernelIoControl when
// determining if the buffer is large enough.
BitConverter.GetBytes(nBuffSize).CopyTo(outbuff, 0);
break;
default:
throw new Win32Exception(error, "Unexpected error");
}
}
}
当我将usb棒连接到windows ce 6设备时,它会显示一个新的硬盘识别,我需要来这个新设备注册的属性,控制我的windows上可用的USB端口6设备
答案 0 :(得分:0)
您可能正在寻找的是USB_DEVICE_DESCRIPTOR。在大窗口中,您将使用SetupDiGetDeviceProperty来获取此信息,但在CE中,此值仅适用于驱动程序。我不认为有一种通用的方法可以从CE中的驱动程序中获取此信息。但是,您的驱动程序可能包含一个特殊的IOCTL_来获取该信息。联系您的OEM。