HalDeviceClass
G_STRUCT_OFFSET (HalDeviceClass,
G_STRUCT_OFFSET (HalDeviceClass,
G_STRUCT_OFFSET (HalDeviceClass,
sizeof (HalDeviceClass),
hal_device_class_init (HalDeviceClass *klass)
G_STRUCT_OFFSET (HalDeviceClass,
HAL_TYPE_DEVICE, HalDeviceClass))