DEVPKEY_Device_BusRelations

Undocumented in source but is binding to Windows. You might be able to learn more by searching the web for its name.
version(Windows)
@nogc nothrow extern (Windows) const
auto DEVPKEY_Device_BusRelations = DEFINE_DEVPROPKEY!(0x4340a6c5, 0x93fa, 0x4706, 0x97, 0x2c, 0x7b, 0x64, 0x80, 0x08, 0xa5, 0xa7, 7);

Meta