drivers/platform/x86/dell-wmi-descriptor.h

   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  */
  22 int dell_wmi_get_descriptor_valid(void);
  23
  24 bool dell_wmi_get_interface_version(u32 *version);
  25 bool dell_wmi_get_size(u32 *size);
  26 bool dell_wmi_get_hotfix(u32 *hotfix);
  27
  28 #endif