SetupDiOpenClassRegKeyEx

[DllImport("setupapi.dll", SetLastError = true, CharSet = CharSet.Unicode)]
public static extern IntPtr SetupDiOpenClassRegKeyEx(
   ref Guid ClassGuid,
   uint samDesired,
   uint Flags,
   string MachineName,
   IntPtr Reserved,
   IntPtr ClassKey,
   IntPtr Reserved2
);

Microsoft documentation: Link