public static void ReEnableDevice(string deviceInstanceId)
{
Guid hidGuid = new Guid();
NativeMethods.HidD_GetHidGuid(ref hidGuid);
IntPtr deviceInfoSet = NativeMethods.SetupDiGetClassDevs(ref hidGuid, deviceInstanceId, 0, NativeMethods.DIGCF_PRESENT | NativeMethods.DIGCF_DEVICEINTERFACE);
NativeMethods.SP_DEVINFO_DATA deviceInfoData = new NativeMethods.SP_DEVINFO_DATA();
deviceInfoData.cbSize = Marshal.SizeOf(deviceInfoData);
if (!NativeMethods.SetupDiEnumDeviceInfo(deviceInfoSet, 0, ref deviceInfoData))
{
throw new Exception("Error getting device info data, error code = " + Marshal.GetLastWin32Error());
}
// Check that we have a unique device
if (NativeMethods.SetupDiEnumDeviceInfo(deviceInfoSet, 1, ref deviceInfoData))
{
throw new Exception("Can't find unique device");
}
NativeMethods.SP_PROPCHANGE_PARAMS propChangeParams = new NativeMethods.SP_PROPCHANGE_PARAMS();
propChangeParams.classInstallHeader.cbSize = Marshal.SizeOf(propChangeParams.classInstallHeader);
propChangeParams.classInstallHeader.installFunction = NativeMethods.DIF_PROPERTYCHANGE;
propChangeParams.stateChange = NativeMethods.DICS_DISABLE;
propChangeParams.scope = NativeMethods.DICS_FLAG_GLOBAL;
propChangeParams.hwProfile = 0;
if (!NativeMethods.SetupDiSetClassInstallParams(deviceInfoSet, ref deviceInfoData, ref propChangeParams, Marshal.SizeOf(propChangeParams)))
{
throw new Exception("Error setting class install params, error code = " + Marshal.GetLastWin32Error());
}
NativeMethods.SetupDiCallClassInstaller(NativeMethods.DIF_PROPERTYCHANGE, deviceInfoSet, ref deviceInfoData);
// TEST: If previous SetupDiCallClassInstaller fails, just continue
// otherwise device will likely get permanently disabled.
/*if (!success)
* {
* throw new Exception("Error disabling device, error code = " + Marshal.GetLastWin32Error());
* }
*/
Stopwatch.Restart();
while (Stopwatch.ElapsedMilliseconds < 50)
{
// Use SpinWait to keep control of current thread. Using Sleep could potentially
// cause other events to get run out of order
System.Threading.Thread.SpinWait(100);
}
Stopwatch.Stop();
propChangeParams.stateChange = NativeMethods.DICS_ENABLE;
if (!NativeMethods.SetupDiSetClassInstallParams(deviceInfoSet, ref deviceInfoData, ref propChangeParams, Marshal.SizeOf(propChangeParams)))
{
throw new Exception("Error setting class install params, error code = " + Marshal.GetLastWin32Error());
}
if (!NativeMethods.SetupDiCallClassInstaller(NativeMethods.DIF_PROPERTYCHANGE, deviceInfoSet, ref deviceInfoData))
{
throw new Exception("Error enabling device, error code = " + Marshal.GetLastWin32Error());
}
Stopwatch.Restart();
while (Stopwatch.ElapsedMilliseconds < 50)
{
// Use SpinWait to keep control of current thread. Using Sleep could potentially
// cause other events to get run out of order
System.Threading.Thread.SpinWait(100);
}
Stopwatch.Stop();
NativeMethods.SetupDiDestroyDeviceInfoList(deviceInfoSet);
}