xref: /linux-6.15/include/linux/wmi.h (revision d4fc91ad)
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 	/*
26 	 * These are true for data objects that support reads and writes,
27 	 * respectively.
28 	 */
29 	bool readable, writeable;
30 };
31 
32 struct wmi_device_id {
33 	const char *guid_string;
34 };
35 
36 struct wmi_driver {
37 	struct device_driver driver;
38 	const struct wmi_device_id *id_table;
39 
40 	int (*probe)(struct wmi_device *wdev);
41 	int (*remove)(struct wmi_device *wdev);
42 };
43 
44 extern int __must_check __wmi_driver_register(struct wmi_driver *driver,
45 					      struct module *owner);
46 extern void wmi_driver_unregister(struct wmi_driver *driver);
47 #define wmi_driver_register(driver) __wmi_driver_register((driver), THIS_MODULE)
48 
49 #define module_wmi_driver(__wmi_driver) \
50 	module_driver(__wmi_driver, wmi_driver_register, \
51 		      wmi_driver_unregister)
52 
53 #endif
54