if (CR_SUCCESS == CM_Get_Parent(out parent, devinfo_data.DevInst, 0))

static extern int CM_Get_Parent(

Declare Function CM_Get_Parent Lib "setupapi.dll" (TODO) As TODO

      CM_Get_Parent(out ptrPrevious, da.DevInst, 0);

       CM_Get_Parent(out ptrPrevious, da.DevInst, 0);

     CM_Get_Parent(out ptrPrevious, da.DevInst, 0);

         CM_Get_Parent(out ptrPrevious, da.DevInst, 0);