public void GetGpsData(string puId, int channelNo, Test_Struct s)
{
//int i = BVCU.ManagedLayer_CuGetPuGpsInfo(m_bvcuSdkHandle, m_session.Handle, Encoding.UTF8.GetBytes(puId),
// channelNo - BVCU.BVCU_SUBDEV_INDEXMAJOR_MIN_GPS);
IntPtr pt = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(Test_Struct)));
Marshal.StructureToPtr(s, pt, false);
int j = BVCU.ManagedLayer_CuGetPuGpsInfoV2(m_bvcuSdkHandle, m_session.Handle, Encoding.UTF8.GetBytes(puId),
channelNo - BVCU.BVCU_SUBDEV_INDEXMAJOR_MIN_GPS, pt);
}