blob: 8e3e86c7d78c6bd9b4f0963cae18c11e0fc47aa1 [file] [log] [blame]
/* SPDX-License-Identifier: GPL-2.0+ */
* Interface for Surface ACPI Notify (SAN) driver.
* Provides access to discrete GPU notifications sent from ACPI via the SAN
* driver, which are not handled by this driver directly.
* Copyright (C) 2019-2020 Maximilian Luz <>
#include <linux/notifier.h>
#include <linux/types.h>
* struct san_dgpu_event - Discrete GPU ACPI event.
* @category: Category of the event.
* @target: Target ID of the event source.
* @command: Command ID of the event.
* @instance: Instance ID of the event source.
* @length: Length of the event's payload data (in bytes).
* @payload: Pointer to the event's payload data.
struct san_dgpu_event {
u8 category;
u8 target;
u8 command;
u8 instance;
u16 length;
u8 *payload;
int san_client_link(struct device *client);
int san_dgpu_notifier_register(struct notifier_block *nb);
int san_dgpu_notifier_unregister(struct notifier_block *nb);