public static extern bool HidD_GetAttributes(
IntPtr hFile,
ref HIDNativeMethods.HIDD_ATTRIBUTES attributes);
public bool Init(ushort VID, ushort PID, ushort USAGE)
{
try
{
Guid gHid;
HIDNativeMethods.HidD_GetHidGuid(out gHid);
IntPtr classDevs = HIDNativeMethods.SetupDiGetClassDevs(ref gHid, (string)null, IntPtr.Zero, 18U);
if (classDevs == HIDNativeMethods.InvalidHandleValue)
{
Log.s(LOG_LEVEL.ERROR, "HID_Manager|Init : SetupDiGetClassDevs failed");
return(false);
}
HIDNativeMethods.DeviceInterfaceData structure = new HIDNativeMethods.DeviceInterfaceData();
structure.Size = Marshal.SizeOf <HIDNativeMethods.DeviceInterfaceData>(structure);
int num;
for (num = 0; HIDNativeMethods.SetupDiEnumDeviceInterfaces(classDevs, 0U, ref gHid, (uint)num, ref structure); ++num)
{
IntPtr file = HIDNativeMethods.CreateFile(HIDManager.GetDevicePath(classDevs, ref structure), 3221225472U, 3U, IntPtr.Zero, 3U, 1073741824U, IntPtr.Zero);
if (file != HIDNativeMethods.InvalidHandleValue)
{
HIDNativeMethods.HIDD_ATTRIBUTES attributes = new HIDNativeMethods.HIDD_ATTRIBUTES();
attributes.Size = (uint)Marshal.SizeOf <HIDNativeMethods.HIDD_ATTRIBUTES>(attributes);
if (!HIDNativeMethods.HidD_GetAttributes(file, ref attributes))
{
Log.s(LOG_LEVEL.ERROR, "HID_Manager|Init : HidD_GetAttributes failed");
}
Log.s(LOG_LEVEL.INIT, string.Format("HID_Manager|Init : PID ={0} VID={1}", (object)attributes.ProductID, (object)attributes.VendorID));
IntPtr lpData;
if ((int)attributes.ProductID == (int)PID && (int)attributes.VendorID == (int)VID && HIDNativeMethods.HidD_GetPreparsedData(file, out lpData))
{
HIDNativeMethods.HidCaps oCaps;
if (HIDNativeMethods.HidP_GetCaps(lpData, out oCaps) != 1114112)
{
Log.s(LOG_LEVEL.ERROR, "HID_Manager|Init HidP_GetCaps failed");
}
else
{
Log.s(LOG_LEVEL.INIT, string.Format("HID_Manager|Init : usageid={0:x} usagepage={1:x} InputReportLen={2} OutputReportLen={3} FeatureReportLen{4}", (object)oCaps.Usage, (object)oCaps.UsagePage, (object)oCaps.InputReportByteLength, (object)oCaps.OutputReportByteLength, (object)oCaps.FeatureReportByteLength));
if ((int)oCaps.Usage == (int)USAGE)
{
this.m_Handle = file;
this.m_UsagePage = oCaps.UsagePage;
this.m_FeatureSize = (int)oCaps.FeatureReportByteLength;
if (!HIDNativeMethods.SetupDiDestroyDeviceInfoList(classDevs))
{
Log.s(LOG_LEVEL.ERROR, "HID_Manager|Init : SetupDiDestroyDeviceInfoList failed ");
}
return(true);
}
}
}
}
HIDNativeMethods.CloseHandle(file);
}
if (!HIDNativeMethods.SetupDiDestroyDeviceInfoList(classDevs))
{
Log.s(LOG_LEVEL.ERROR, "HID_Manager|Init : SetupDiDestroyDeviceInfoList failed ");
}
Log.s(LOG_LEVEL.INIT, string.Format("HID_Manager|Init : Find HID Device Interface = {0}", (object)num));
return(false);
}
catch (Exception ex)
{
Log.s(LOG_LEVEL.ERROR, string.Format("HID_Manager|Init : Failed {0}", (object)ex.ToString()));
return(false);
}
}
