qnap-ec-ioctl.h

/*
 * Copyright (C) 2021 Stonyx
 * https://www.stonyx.com/
 *
 * This driver is free software. You can redistribute it and/or modify it under the terms of the
 * GNU General Public License Version 3 (or at your option any later version) as published by The
 * Free Software Foundation.
 *
 * This driver is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
 * the GNU General Public License for more details.
 *
 * If you did not received a copy of the GNU General Public License along with this script see
 * http://www.gnu.org/copyleft/gpl.html or write to The Free Software Foundation, 675 Mass Ave,
 * Cambridge, MA 02139, USA.
 */

// These function types are based on function signatures in the libuLinux_hal.so library as
//   decompiled by Ghidra (where int is 4 bytes long, uint4 is 4 bytes long, undefined4 is 4 bytes
//   long and assumed unsigned, and double is 8 bytes long):
//     int ec_sys_get_fan_status(int param_1, uint* param_2)
//     int ec_sys_get_fan_speed(int param_1, uint* param_2)
//     int ec_sys_get_fan_pwm(undefined4 param_1, int* param_2)
//     int ec_sys_get_temperature(int param_1, double*param_2)
//     int ec_sys_set_fan_speed(undefined4 param_1, int param_2)
//   and as decompiled by IDA (where all by the first two arguments are assumed to be local variable
//   assignments):
//     __int64 __fastcall ec_sys_get_fan_status(int a1, _DWORD *a2, __int64 a3, __int64 a4,
//                                              __int64 a5, int a6)
//     __int64 __fastcall ec_sys_get_fan_speed(int a1, _DWORD *a2, __int64 a3, __int64 a4, int a5,
//                                             int a6)
//     __int64 __fastcall ec_sys_get_fan_pwm(int a1, _DWORD *a2, __int64 a3, __int64 a4, int a5,
//                                           int a6)
//     __int64 __fastcall ec_sys_get_temperature(int a1, double *a2, __int64 a3, __int64 a4,
//                                               int a5, int a6)
//     __int64 __fastcall ec_sys_set_fan_speed(int a1, int a2, __int64 a3, __int64 a4, int a5,
//                                           int a6)
//   and on testing of various function signatures as shown below where it was determined that the
//   IDA decompiled versions are closest to the correct function signatures if int is assumed to be
//   1 byte long and unsigned and the return type is changed to a int that is 1, 2, or 4 bytes long:
//     ec_sys_get_fan_status(5, 0) called as int8_t function(int8_t, int8_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_status(7, 0) called as int8_t function(int8_t, int8_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_status(25, 0) called as int8_t function(int8_t, int8_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_status(35, 0) called as int8_t function(int8_t, int8_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_status(5, 0) called as int8 function(int8_t, int16_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_status(7, 0) called as int8 function(int8_t, int16_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_status(25, 0) called as int8 function(int8_t, int16_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_status(35, 0) called as int8 function(int8_t, int16_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_status(5, 0) called as int8_t function(int8_t, int32_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_status(7, 0) called as int8_t function(int8_t, int32_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_status(25, 0) called as int8_t function(int8_t, int32_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_status(35, 0) called as int8_t function(int8_t, int32_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_status(5, 0) called as int8_t function(int8_t, int64_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_status(7, 0) called as int8_t function(int8_t, int64_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_status(25, 0) called as int8_t function(int8_t, int64_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_status(35, 0) called as int8_t function(int8_t, int64_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_status(5, 0) called as int8_t function(int16_t, int8_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_status(7, 0) called as int8_t function(int16_t, int8_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_status(25, 0) called as int8_t function(int16_t, int8_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_status(35, 0) called as int8_t function(int16_t, int8_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_status(5, 0) called as int8_t function(int16_t, int16_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_status(7, 0) called as int8_t function(int16_t, int16_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_status(25, 0) called as int8_t function(int16_t, int16_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_status(35, 0) called as int8_t function(int16_t, int16_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_status(5, 0) called as int8_t function(int16_t, int32_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_status(7, 0) called as int8_t function(int16_t, int32_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_status(25, 0) called as int8_t function(int16_t, int32_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_status(35, 0) called as int8_t function(int16_t, int32_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_status(5, 0) called as int8_t function(int16_t, int64_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_status(7, 0) called as int8_t function(int16_t, int64_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_status(25, 0) called as int8_t function(int16_t, int64_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_status(35, 0) called as int8_t function(int16_t, int64_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_status(5, 0) called as int8_t function(int32_t, int8_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_status(7, 0) called as int8_t function(int32_t, int8_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_status(25, 0) called as int8_t function(int32_t, int8_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_status(35, 0) called as int8_t function(int32_t, int8_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_status(5, 0) called as int8_t function(int32_t, int16_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_status(7, 0) called as int8_t function(int32_t, int16_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_status(25, 0) called as int8_t function(int32_t, int16_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_status(35, 0) called as int8_t function(int32_t, int16_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_status(5, 0) called as int8_t function(int32_t, int32_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_status(7, 0) called as int8_t function(int32_t, int32_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_status(25, 0) called as int8_t function(int32_t, int32_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_status(35, 0) called as int8_t function(int32_t, int32_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_status(5, 0) called as int8_t function(int32_t, int64_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_status(7, 0) called as int8_t function(int32_t, int64_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_status(25, 0) called as int8_t function(int32_t, int64_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_status(35, 0) called as int8_t function(int32_t, int64_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_status(5, 0) called as int8_t function(int64_t, int8_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_status(7, 0) called as int8_t function(int64_t, int8_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_status(25, 0) called as int8_t function(int64_t, int8_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_status(35, 0) called as int8_t function(int64_t, int8_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_status(5, 0) called as int8_t function(int64_t, int16_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_status(7, 0) called as int8_t function(int64_t, int16_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_status(25, 0) called as int8_t function(int64_t, int16_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_status(35, 0) called as int8_t function(int64_t, int16_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_status(5, 0) called as int8_t function(int64_t, int32_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_status(7, 0) called as int8_t function(int64_t, int32_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_status(25, 0) called as int8_t function(int64_t, int32_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_status(35, 0) called as int8_t function(int64_t, int32_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_status(5, 0) called as int8_t function(int64_t, int64_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_status(7, 0) called as int8_t function(int64_t, int64_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_status(25, 0) called as int8_t function(int64_t, int64_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_status(35, 0) called as int8_t function(int64_t, int64_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_speed(5, 0) called as int8_t function(int8_t, int8_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = -1
//     ec_sys_get_fan_speed(7, 0) called as int8_t function(int8_t, int8_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = -1
//     ec_sys_get_fan_speed(25, 0) called as int8_t function(int8_t, int8_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = -1
//     ec_sys_get_fan_speed(35, 0) called as int8_t function(int8_t, int8_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = -1
//     ec_sys_get_fan_speed(5, 0) called as int8 function(int8_t, int16_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = -1
//     ec_sys_get_fan_speed(7, 0) called as int8 function(int8_t, int16_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = -1
//     ec_sys_get_fan_speed(25, 0) called as int8 function(int8_t, int16_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = -1
//     ec_sys_get_fan_speed(35, 0) called as int8 function(int8_t, int16_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = -1
//     ec_sys_get_fan_speed(5, 0) called as int8_t function(int8_t, int32_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 65535
//     ec_sys_get_fan_speed(7, 0) called as int8_t function(int8_t, int32_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 65535
//     ec_sys_get_fan_speed(25, 0) called as int8_t function(int8_t, int32_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 65535
//     ec_sys_get_fan_speed(35, 0) called as int8_t function(int8_t, int32_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 65535
//     ec_sys_get_fan_speed(5, 0) called as int8_t function(int8_t, int64_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 65535
//     ec_sys_get_fan_speed(7, 0) called as int8_t function(int8_t, int64_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 65535
//     ec_sys_get_fan_speed(25, 0) called as int8_t function(int8_t, int64_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 65535
//     ec_sys_get_fan_speed(35, 0) called as int8_t function(int8_t, int64_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 65535
//     ec_sys_get_fan_speed(5, 0) called as int8_t function(int16_t, int8_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_speed(7, 0) called as int8_t function(int16_t, int8_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_speed(25, 0) called as int8_t function(int16_t, int8_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_speed(35, 0) called as int8_t function(int16_t, int8_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_speed(5, 0) called as int8_t function(int16_t, int16_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_speed(7, 0) called as int8_t function(int16_t, int16_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_speed(25, 0) called as int8_t function(int16_t, int16_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_speed(35, 0) called as int8_t function(int16_t, int16_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_speed(5, 0) called as int8_t function(int16_t, int32_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_speed(7, 0) called as int8_t function(int16_t, int32_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_speed(25, 0) called as int8_t function(int16_t, int32_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_speed(35, 0) called as int8_t function(int16_t, int32_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_speed(5, 0) called as int8_t function(int16_t, int64_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_speed(7, 0) called as int8_t function(int16_t, int64_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_speed(25, 0) called as int8_t function(int16_t, int64_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_speed(35, 0) called as int8_t function(int16_t, int64_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_speed(5, 0) called as int8_t function(int32_t, int8_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_speed(7, 0) called as int8_t function(int32_t, int8_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_speed(25, 0) called as int8_t function(int32_t, int8_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_speed(35, 0) called as int8_t function(int32_t, int8_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_speed(5, 0) called as int8_t function(int32_t, int16_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_speed(7, 0) called as int8_t function(int32_t, int16_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_speed(25, 0) called as int8_t function(int32_t, int16_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_speed(35, 0) called as int8_t function(int32_t, int16_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_speed(5, 0) called as int8_t function(int32_t, int32_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_speed(7, 0) called as int8_t function(int32_t, int32_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_speed(25, 0) called as int8_t function(int32_t, int32_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_speed(35, 0) called as int8_t function(int32_t, int32_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_speed(5, 0) called as int8_t function(int32_t, int64_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_speed(7, 0) called as int8_t function(int32_t, int64_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_speed(25, 0) called as int8_t function(int32_t, int64_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_speed(35, 0) called as int8_t function(int32_t, int64_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_speed(5, 0) called as int8_t function(int64_t, int8_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_speed(7, 0) called as int8_t function(int64_t, int8_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_speed(25, 0) called as int8_t function(int64_t, int8_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_speed(35, 0) called as int8_t function(int64_t, int8_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_speed(5, 0) called as int8_t function(int64_t, int16_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_speed(7, 0) called as int8_t function(int64_t, int16_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_speed(25, 0) called as int8_t function(int64_t, int16_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_speed(35, 0) called as int8_t function(int64_t, int16_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_speed(5, 0) called as int8_t function(int64_t, int32_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_speed(7, 0) called as int8_t function(int64_t, int32_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_speed(25, 0) called as int8_t function(int64_t, int32_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_speed(35, 0) called as int8_t function(int64_t, int32_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_speed(5, 0) called as int8_t function(int64_t, int64_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_speed(7, 0) called as int8_t function(int64_t, int64_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_speed(25, 0) called as int8_t function(int64_t, int64_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_speed(35, 0) called as int8_t function(int64_t, int64_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_pwm(5, 0) called as int8_t function(int8_t, int8_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 76
//     ec_sys_get_fan_pwm(7, 0) called as int8_t function(int8_t, int8_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 76
//     ec_sys_get_fan_pwm(25, 0) called as int8_t function(int8_t, int8_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 76
//     ec_sys_get_fan_pwm(35, 0) called as int8_t function(int8_t, int8_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = -118
//     ec_sys_get_fan_pwm(5, 0) called as int8 function(int8_t, int16_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 76
//     ec_sys_get_fan_pwm(7, 0) called as int8 function(int8_t, int16_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 76
//     ec_sys_get_fan_pwm(25, 0) called as int8 function(int8_t, int16_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 76
//     ec_sys_get_fan_pwm(35, 0) called as int8 function(int8_t, int16_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 650
//     ec_sys_get_fan_pwm(5, 0) called as int8_t function(int8_t, int32_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 76
//     ec_sys_get_fan_pwm(7, 0) called as int8_t function(int8_t, int32_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 76
//     ec_sys_get_fan_pwm(25, 0) called as int8_t function(int8_t, int32_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 76
//     ec_sys_get_fan_pwm(35, 0) called as int8_t function(int8_t, int32_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 650
//     ec_sys_get_fan_pwm(5, 0) called as int8_t function(int8_t, int64_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 76
//     ec_sys_get_fan_pwm(7, 0) called as int8_t function(int8_t, int64_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 76
//     ec_sys_get_fan_pwm(25, 0) called as int8_t function(int8_t, int64_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 76
//     ec_sys_get_fan_pwm(35, 0) called as int8_t function(int8_t, int64_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 650
//     ec_sys_get_fan_pwm(5, 0) called as int8_t function(int16_t, int8_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_pwm(7, 0) called as int8_t function(int16_t, int8_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_pwm(25, 0) called as int8_t function(int16_t, int8_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_pwm(35, 0) called as int8_t function(int16_t, int8_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_pwm(5, 0) called as int8_t function(int16_t, int16_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_pwm(7, 0) called as int8_t function(int16_t, int16_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_pwm(25, 0) called as int8_t function(int16_t, int16_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_pwm(35, 0) called as int8_t function(int16_t, int16_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_pwm(5, 0) called as int8_t function(int16_t, int32_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_pwm(7, 0) called as int8_t function(int16_t, int32_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_pwm(25, 0) called as int8_t function(int16_t, int32_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_pwm(35, 0) called as int8_t function(int16_t, int32_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_pwm(5, 0) called as int8_t function(int16_t, int64_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_pwm(7, 0) called as int8_t function(int16_t, int64_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_pwm(25, 0) called as int8_t function(int16_t, int64_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_pwm(35, 0) called as int8_t function(int16_t, int64_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_pwm(5, 0) called as int8_t function(int32_t, int8_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_pwm(7, 0) called as int8_t function(int32_t, int8_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_pwm(25, 0) called as int8_t function(int32_t, int8_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_pwm(35, 0) called as int8_t function(int32_t, int8_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_pwm(5, 0) called as int8_t function(int32_t, int16_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_pwm(7, 0) called as int8_t function(int32_t, int16_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_pwm(25, 0) called as int8_t function(int32_t, int16_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_pwm(35, 0) called as int8_t function(int32_t, int16_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_pwm(5, 0) called as int8_t function(int32_t, int32_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_pwm(7, 0) called as int8_t function(int32_t, int32_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_pwm(25, 0) called as int8_t function(int32_t, int32_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_pwm(35, 0) called as int8_t function(int32_t, int32_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_pwm(5, 0) called as int8_t function(int32_t, int64_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_pwm(7, 0) called as int8_t function(int32_t, int64_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_pwm(25, 0) called as int8_t function(int32_t, int64_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_pwm(35, 0) called as int8_t function(int32_t, int64_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_pwm(5, 0) called as int8_t function(int64_t, int8_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_pwm(7, 0) called as int8_t function(int64_t, int8_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_pwm(25, 0) called as int8_t function(int64_t, int8_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_pwm(35, 0) called as int8_t function(int64_t, int8_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_pwm(5, 0) called as int8_t function(int64_t, int16_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_pwm(7, 0) called as int8_t function(int64_t, int16_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_pwm(25, 0) called as int8_t function(int64_t, int16_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_pwm(35, 0) called as int8_t function(int64_t, int16_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_pwm(5, 0) called as int8_t function(int64_t, int32_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_pwm(7, 0) called as int8_t function(int64_t, int32_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_pwm(25, 0) called as int8_t function(int64_t, int32_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_pwm(35, 0) called as int8_t function(int64_t, int32_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_fan_pwm(5, 0) called as int8_t function(int64_t, int64_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 1
//     ec_sys_get_fan_pwm(7, 0) called as int8_t function(int64_t, int64_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 1
//     ec_sys_get_fan_pwm(25, 0) called as int8_t function(int64_t, int64_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = 0
//     ec_sys_get_fan_pwm(35, 0) called as int8_t function(int64_t, int64_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 0
//     ec_sys_get_temperature(5, 0.000000) called as int8_t function(int8_t, double*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 19.000000
//     ec_sys_get_temperature(7, 0.000000) called as int8_t function(int8_t, double*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 26.000000
//     ec_sys_get_temperature(25, 0.000000) called as int8_t function(int8_t, double*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = -1.000000
//     ec_sys_get_temperature(35, 0.000000) called as int8_t function(int8_t, double*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = -1.000000
//     ec_sys_get_temperature(5, 0.000000) called as int8_t function(int16_t, double*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 19.000000
//     ec_sys_get_temperature(7, 0.000000) called as int8_t function(int16_t, double*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 26.000000
//     ec_sys_get_temperature(25, 0.000000) called as int8_t function(int16_t, double*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = -1.000000
//     ec_sys_get_temperature(35, 0.000000) called as int8_t function(int16_t, double*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = -1.000000
//     ec_sys_get_temperature(5, 0.000000) called as int8_t function(int32_t, double*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 19.000000
//     ec_sys_get_temperature(7, 0.000000) called as int8_t function(int32_t, double*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 26.000000
//     ec_sys_get_temperature(25, 0.000000) called as int8_t function(int32_t, double*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = -1.000000
//     ec_sys_get_temperature(35, 0.000000) called as int8_t function(int32_t, double*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = -1.000000
//     ec_sys_get_temperature(5, 0.000000) called as int8_t function(int64_t, double*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = 19.000000
//     ec_sys_get_temperature(7, 0.000000) called as int8_t function(int64_t, double*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 26.000000
//     ec_sys_get_temperature(25, 0.000000) called as int8_t function(int64_t, double*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = -1.000000
//     ec_sys_get_temperature(35, 0.000000) called as int8_t function(int64_t, double*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = -1.000000
//     ec_sys_get_fan_speed(5, 0) called as int16_t function(int8_t, int8_t*):
//     returned = 0, argument 1 after call = 5, argument 2 after call = -1
//     ec_sys_get_fan_speed(7, 0) called as int16_t function(int8_t, int32_t*):
//     returned = 0, argument 1 after call = 7, argument 2 after call = 65535
//     ec_sys_get_fan_speed(25, 0) called as int32_t function(int8_t, int8_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = -1
//     ec_sys_get_fan_speed(35, 0) called as int32_t function(int8_t, int32_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 65535
//     ec_sys_get_fan_speed(25, 0) called as int64_t function(int8_t, int8_t*):
//     returned = 0, argument 1 after call = 25, argument 2 after call = -1
//     ec_sys_get_fan_speed(35, 0) called as int64_t function(int8_t, int32_t*):
//     returned = 0, argument 1 after call = 35, argument 2 after call = 65535
enum qnap_ec_ioctl_function_type {
  int8_func_uint8_uint32pointer,
  int8_func_uint8_doublepointer,
  int8_func_uint8_uint8
};

// Define the I/O control command structure
// Note: we are using an int64 field instead of a double field because floating point math is not
//       possible in kernel space
struct qnap_ec_ioctl_command {
  enum qnap_ec_ioctl_function_type function_type;
  char function_name[50];
  uint8_t argument1_uint8;
  uint8_t argument2_uint8;
  uint32_t argument2_uint32;
  int64_t argument2_int64;
  int8_t return_value_int8;
};

// Define I/O control commands
// Note: using I/O control number 10 to match the major number of the miscellaneous device
#define QNAP_EC_IOCTL_CALL _IOR(10, 0, struct qnap_ec_ioctl_command)
#define QNAP_EC_IOCTL_RETURN _IOW(10, 1, struct qnap_ec_ioctl_command)