-static int acpi_fan_suspend(struct acpi_device *device, int state);
-static int acpi_fan_resume(struct acpi_device *device, int state);
+static int acpi_fan_suspend(struct acpi_device *device, pm_message_t state);
+static int acpi_fan_resume(struct acpi_device *device);
+
+static const struct acpi_device_id fan_device_ids[] = {
+ {"PNP0C0B", 0},
+ {"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, fan_device_ids);