Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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
22struct 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. */
30extern 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. */
34extern struct wmi_device *wmidev_get_other_guid(struct wmi_device *wdev,
35 const char *guid_string);
36
37struct wmi_device_id {
38 const char *guid_string;
39};
40
41struct 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
50extern int __must_check __wmi_driver_register(struct wmi_driver *driver,
51 struct module *owner);
52extern 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