1/*
 2 *  Dell WMI descriptor driver
 3 *
 4 *  Copyright (c) 2017 Dell Inc.
 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
11#ifndef _DELL_WMI_DESCRIPTOR_H_
12#define _DELL_WMI_DESCRIPTOR_H_
13
14#include <linux/wmi.h>
15
16/* possible return values:
17 *  -ENODEV: Descriptor GUID missing from WMI bus
18 *  -EPROBE_DEFER: probing for dell-wmi-descriptor not yet run
19 *  0: valid descriptor, successfully probed
20 *  < 0: invalid descriptor, don't probe dependent devices
21 */
22int dell_wmi_get_descriptor_valid(void);
23
24bool dell_wmi_get_interface_version(u32 *version);
25bool dell_wmi_get_size(u32 *size);
26bool dell_wmi_get_hotfix(u32 *hotfix);
27
28#endif