1 /* 2 * wmi.h - ACPI WMI interface 3 * 4 * Copyright (c) 2015 Andrew Lutomirski 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope that it will be useful, but 11 * WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * General Public License for more details. 14 */ 15 16 #ifndef _LINUX_WMI_H 17 #define _LINUX_WMI_H 18 19 #include <linux/device.h> 20 #include <linux/acpi.h> 21 22 struct wmi_device { 23 struct device dev; 24 25 /* True for data blocks implementing the Set Control Method */ 26 bool setable; 27 }; 28 29 /* Caller must kfree the result. */ 30 extern union acpi_object *wmidev_block_query(struct wmi_device *wdev, 31 u8 instance); 32 33 /* Gets another device on the same bus. Caller must put_device the result. */ 34 extern struct wmi_device *wmidev_get_other_guid(struct wmi_device *wdev, 35 const char *guid_string); 36 37 struct wmi_device_id { 38 const char *guid_string; 39 }; 40 41 struct wmi_driver { 42 struct device_driver driver; 43 const struct wmi_device_id *id_table; 44 45 int (*probe)(struct wmi_device *wdev); 46 int (*remove)(struct wmi_device *wdev); 47 void (*notify)(struct wmi_device *device, union acpi_object *data); 48 }; 49 50 extern int __must_check __wmi_driver_register(struct wmi_driver *driver, 51 struct module *owner); 52 extern void wmi_driver_unregister(struct wmi_driver *driver); 53 #define wmi_driver_register(driver) __wmi_driver_register((driver), THIS_MODULE) 54 55 #define module_wmi_driver(__wmi_driver) \ 56 module_driver(__wmi_driver, wmi_driver_register, \ 57 wmi_driver_unregister) 58 59 #endif 60