wmi.h (1620B)
1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * wmi.h - ACPI WMI interface 4 * 5 * Copyright (c) 2015 Andrew Lutomirski 6 */ 7 8#ifndef _LINUX_WMI_H 9#define _LINUX_WMI_H 10 11#include <linux/device.h> 12#include <linux/acpi.h> 13#include <linux/mod_devicetable.h> 14#include <uapi/linux/wmi.h> 15 16struct wmi_device { 17 struct device dev; 18 19 /* True for data blocks implementing the Set Control Method */ 20 bool setable; 21}; 22 23/* evaluate the ACPI method associated with this device */ 24extern acpi_status wmidev_evaluate_method(struct wmi_device *wdev, 25 u8 instance, u32 method_id, 26 const struct acpi_buffer *in, 27 struct acpi_buffer *out); 28 29/* Caller must kfree the result. */ 30extern union acpi_object *wmidev_block_query(struct wmi_device *wdev, 31 u8 instance); 32 33extern int set_required_buffer_size(struct wmi_device *wdev, u64 length); 34 35struct wmi_driver { 36 struct device_driver driver; 37 const struct wmi_device_id *id_table; 38 bool no_notify_data; 39 40 int (*probe)(struct wmi_device *wdev, const void *context); 41 void (*remove)(struct wmi_device *wdev); 42 void (*notify)(struct wmi_device *device, union acpi_object *data); 43 long (*filter_callback)(struct wmi_device *wdev, unsigned int cmd, 44 struct wmi_ioctl_buffer *arg); 45}; 46 47extern int __must_check __wmi_driver_register(struct wmi_driver *driver, 48 struct module *owner); 49extern void wmi_driver_unregister(struct wmi_driver *driver); 50#define wmi_driver_register(driver) __wmi_driver_register((driver), THIS_MODULE) 51 52#define module_wmi_driver(__wmi_driver) \ 53 module_driver(__wmi_driver, wmi_driver_register, \ 54 wmi_driver_unregister) 55 56#endif