Synology uses their software on a variety of hardware where features only slightly different. However,the hardware ranges from simple low power ARM boxes to rack-mounted beasts. This means there has to be some bridge between the low level stuff and high-level things like the web panel.
Due to the closed-source nature of the module everything is a suspicion. However, lack of many of the interfaces will surely make the latter layers (i.e. the whole DSM) unhappy. Immediatelly after the module loads kernel log is being filled with:
[ 154.736374] parameter error. gpiobase=00000000, pin=4, pValue=ffff88000e1d79c4
[ 154.736688] parameter error. gpiobase=00000000, pin=4, pValue=ffff88000e1d79c4
[ 156.738788] parameter error. gpiobase=00000000, pin=4, pValue=ffff88000e1d79c4
Keep in mind this structure above is NOT the same between software versions. The two major changes are:
- Addition of different
set_disk_ledsignature (but it'sifdefed) set_ok_to_remove_ledandget_sys_currentwere shifted belowhwmon_(without anyidefs, sic!)
Different platforms support different hwmon sensors. Below are these which we briefly tested.
Looking through GPLed source code of Linux kernel for DS3615xs we can find many code paths which aren't called directly
but are exported from the kernel. Moreover, these code paths deal with specific hardware features (e.g.
syno_mv_9235_disk_led_set and syno_mv_9235_disk_led_get in drivers/ata/ahci.c). Looking through what actually
consumes these symbols we can see that the synobios module seems to be the one:
$ readelf -a /usr/lib/modules/synobios.ko | grep 'syno_mv_9235_disk_led_'
0000000051ea 00bd00000002 R_X86_64_PC32 0000000000000000 syno_mv_9235_disk_led_ - 4
0000000051f4 00e300000002 R_X86_64_PC32 0000000000000000 syno_mv_9235_disk_led_ - 4
0000000059ef 00bd00000002 R_X86_64_PC32 0000000000000000 syno_mv_9235_disk_led_ - 4
0000000059f9 00e300000002 R_X86_64_PC32 0000000000000000 syno_mv_9235_disk_led_ - 4
189: 0000000000000000 0 NOTYPE GLOBAL DEFAULT UND syno_mv_9235_disk_led_set
227: 0000000000000000 0 NOTYPE GLOBAL DEFAULT UND syno_mv_9235_disk_led_get
This makes perfect sense - synobios presumably provides an abstraction of these allowing for a safe access from
non-privileged code (i.e. code not running in the kernel). This can be inferred by the presence of /dev/synobios and
/proc/synobios/. As dissembling non-GPL binaries is tricky legally we stayed within roams of what the module tells us
by itself. Looking at the symbols itself we can see supported platforms (or at least we know it supports these "at
minimum"):
$ cat /proc/kallsyms | grep DS
ffffffffa01dd310 t DS3612xsInitModuleType [bromolow_synobios]
ffffffffa01dd340 t DS3615xsInitModuleType [bromolow_synobios]
ffffffffa01dd410 t DS3611xsInitModuleType [bromolow_synobios]
ffffffffa01dd570 t DS2414xsInitModuleType [bromolow_synobios]
Additionally, many parts of the system use ioctl to communicate with the /dev/synobios device to perform various
actions. See
Based on the analysis of Jun's module and symbols provided by the bios module itself we can find a table in memory. The table contains a list of multiple pointers. As the module exports all symbols necessary, there's no need for disassembly of the proprietary code to understand which parts needs to be provided to make the code happy:
40 80 1e a0 ff ff ff ff [00] 0x000 ffffffffa01e8040 synobios_model_cleanup+0x7e40/0x8 [bromolow_synobios]
a0 ed 1d a0 ff ff ff ff [01] 0x008 ffffffffa01deda0 GetBrand+0x0/0x10 [bromolow_synobios]
50 f7 1d a0 ff ff ff ff [02] 0x010 ffffffffa01df750 GetModel+0x0/0x250 [bromolow_synobios]
00 00 00 00 00 00 00 00 [03] 0x018 (null) (null)
c0 e7 1d a0 ff ff ff ff [04] 0x020 ffffffffa01de7c0 rtc_bandon_get_time+0x0/0x1a0 [bromolow_synobios]
20 ea 1d a0 ff ff ff ff [05] 0x028 ffffffffa01dea20 rtc_bandon_set_time+0x0/0x350 [bromolow_synobios]
00 00 00 00 00 00 00 00 [06] 0x030 (null) (null)
90 f5 1d a0 ff ff ff ff [07] 0x038 ffffffffa01df590 SetFanStatus+0x0/0xe0 [bromolow_synobios]
70 f6 1d a0 ff ff ff ff [08] 0x040 ffffffffa01df670 GetSysTemperature+0x0/0x20 [bromolow_synobios]
50 f2 1d a0 ff ff ff ff [09] 0x048 ffffffffa01df250 GetCpuTemperatureDenlowI3Transfer+0x0/0x80 [bromolow_synobios]
90 fb 1d a0 ff ff ff ff [10] 0x050 ffffffffa01dfb90 SetDiskLedStatusBy9235GPIOandAHCISGPIO+0x0/0x60 [bromolow_synobios]
00 00 00 00 00 00 00 00 [11] 0x058 (null) (null)
00 00 00 00 00 00 00 00 [12] 0x060 (null) (null)
00 00 00 00 00 00 00 00 [13] 0x068 (null) (null)
00 00 00 00 00 00 00 00 [14] 0x070 (null) (null)
70 ee 1d a0 ff ff ff ff [15] 0x078 ffffffffa01dee70 SetGpioPin+0x0/0x50 [bromolow_synobios]
f0 ee 1d a0 ff ff ff ff [16] 0x080 ffffffffa01deef0 GetGpioPin+0x0/0x50 [bromolow_synobios]
00 00 00 00 00 00 00 00 [17] 0x088 (null) (null)
60 e9 1d a0 ff ff ff ff [18] 0x090 ffffffffa01de960 rtc_bandon_set_auto_poweron+0x0/0xc0 [bromolow_synobios]
10 e5 1d a0 ff ff ff ff [19] 0x098 ffffffffa01de510 rtc_get_auto_poweron+0x0/0x50 [bromolow_synobios]
00 00 00 00 00 00 00 00 [20] 0x0a0 (null) (null)
00 00 00 00 00 00 00 00 [21] 0x0a8 (null) (null)
70 f5 1d a0 ff ff ff ff [22] 0x0b0 ffffffffa01df570 SetAlarmLed+0x0/0x20 [bromolow_synobios]
10 ee 1d a0 ff ff ff ff [23] 0x0b8 ffffffffa01dee10 GetBuzzerCleared+0x0/0x30 [bromolow_synobios]
e0 ed 1d a0 ff ff ff ff [24] 0x0c0 ffffffffa01dede0 SetBuzzerClear+0x0/0x30 [bromolow_synobios]
40 ee 1d a0 ff ff ff ff [25] 0x0c8 ffffffffa01dee40 GetPowerStatus+0x0/0x30 [bromolow_synobios]
00 00 00 00 00 00 00 00 [26] 0x0d0 (null) (null)
b0 ed 1d a0 ff ff ff ff [27] 0x0d8 ffffffffa01dedb0 InitModuleType+0x0/0x30 [bromolow_synobios]
70 f4 1d a0 ff ff ff ff [28] 0x0e0 ffffffffa01df470 Uninitialize+0x0/0x20 [bromolow_synobios]
90 f4 1d a0 ff ff ff ff [29] 0x0e8 ffffffffa01df490 SetCpuFanStatus+0x0/0xe0 [bromolow_synobios]
00 00 00 00 00 00 00 00 [30] 0x0f0 (null) (null)
00 00 00 00 00 00 00 00 [31] 0x0f8 (null) (null)
00 00 00 00 00 00 00 00 [32] 0x100 (null) (null)
c0 db 1d a0 ff ff ff ff [33] 0x108 ffffffffa01ddbc0 CheckMicropId+0x0/0x90 [bromolow_synobios]
40 db 1d a0 ff ff ff ff [34] 0x110 ffffffffa01ddb40 SetMicropId+0x0/0x80 [bromolow_synobios]
00 00 00 00 00 00 00 00 [35] 0x118 (null) (null)
00 00 00 00 00 00 00 00 [36] 0x120 (null) (null)
00 00 00 00 00 00 00 00 [37] 0x128 (null) (null)
00 00 00 00 00 00 00 00 [38] 0x130 (null) (null)
00 00 00 00 00 00 00 00 [39] 0x138 (null) (null)
40 ef 1d a0 ff ff ff ff [40] 0x140 ffffffffa01def40 GetCPUInfo+0x0/0x70 [bromolow_synobios]
00 00 00 00 00 00 00 00 [41] 0x148 (null) (null)
00 00 00 00 00 00 00 00 [42] 0x150 (null) (null)
00 00 00 00 00 00 00 00 [43] 0x158 (null) (null)
00 00 00 00 00 00 00 00 [44] 0x160 (null) (null)
10 f4 1d a0 ff ff ff ff [45] 0x168 ffffffffa01df410 HWMONGetFanSpeedRPMFromADT+0x0/0x60 [bromolow_synobios]
00 00 00 00 00 00 00 00 [46] 0x170 (null) (null)
b0 f3 1d a0 ff ff ff ff [47] 0x178 ffffffffa01df3b0 HWMONGetVoltageSensorFromADT+0x0/0x60 [bromolow_synobios]
00 00 00 00 00 00 00 00 [48] 0x180 (null) (null)
50 f3 1d a0 ff ff ff ff [49] 0x188 ffffffffa01df350 HWMONGetThermalSensorFromADT+0x0/0x60 [bromolow_synobios]
00 00 00 00 00 00 00 00 [50] 0x190 (null) (null)
00 00 00 00 00 00 00 00 [51] 0x198 (null) (null)
Jun's code seems to patch all hardware-specific bits of the vtable:
However, while this looks simple it is not. This is because finding that vtable reliably is tricky due to how kernel modules are loaded and how certain parts of kernel's memory are protected (from accidental change).
See https://github.com/RedPill-TTG/redpill-lkm/blob/master/shim/bios_shim.c for details.
While Synobios itself isn't GPLed it actually used to open source. Intentionally or not Synology included its full source with some of their releases. See more in the GPL section. While the code is not explicitly marked as GPL it is open sourced. However, even if the headers aren't copyrightable anyway.
Additionally, as @Vortex pointed out, the newly-released DSMv7.0 dev toolkit contains the full synobios_ops structure.
It contains not only the list but also function declarations making the identification easier. The v6 toolkit also
contained that information, but it was hidden more deeply:
For v6.2 toolkits you will find it in ds.apollolake-6.2.dev.txz/usr/local/x86_64-pc-linux-gnu/x86_64-pc-linux-gnu/sys-root/usr/include/synobios/synobios.h:
// v6.2 example
// Formatting adjusted here (alignmnet, added indexes)
// Copyright (c) 2000-2003 Synology Inc. All rights reserved.
struct synobios_ops {
/* 0 */ struct module *owner;
/* 1 */ int (*get_brand)(void);
/* 2 */ int (*get_model)(void);
/* 3 */ int (*get_cpld_version)(void);
/* 4 */ int (*get_rtc_time)(struct _SynoRtcTimePkt *);
/* 5 */ int (*set_rtc_time)(struct _SynoRtcTimePkt *);
/* 6 */ int (*get_fan_status)(int, FAN_STATUS *);
/* 7 */ int (*set_fan_status)(FAN_STATUS, FAN_SPEED);
/* 8 */ int (*get_sys_temperature)(struct _SynoThermalTemp *);
/* 9 */ int (*get_cpu_temperature)(struct _SynoCpuTemp *);
/* 10 */ int (*set_disk_led)(DISKLEDSTATUS*);
/* 11 */ int (*set_power_led)(SYNO_LED);
/* 12 */ int (*get_cpld_reg)(CPLDREG *);
/* 13 */ int (*set_mem_byte)(MEMORY_BYTE *);
/* 14 */ int (*get_mem_byte)(MEMORY_BYTE *);
/* 15 */ int (*set_gpio_pin)(GPIO_PIN *);
/* 16 */ int (*get_gpio_pin)(GPIO_PIN *);
/* 17 */ int (*set_gpio_blink)(GPIO_PIN *);
/* 18 */ int (*set_auto_poweron)(SYNO_AUTO_POWERON *);
/* 19 */ int (*get_auto_poweron)(SYNO_AUTO_POWERON *);
/* 20 */ int (*init_auto_poweron)(void);
/* 21 */ int (*uninit_auto_poweron)(void);
/* 22 */ int (*set_alarm_led)(unsigned char);
/* 23 */ int (*get_buzzer_cleared)(unsigned char *buzzer_cleared);
/* 24 */ int (*set_buzzer_clear)(unsigned char buzzer_clear);
/* 25 */ int (*get_power_status)(POWER_INFO *);
/* 26 */ int (*get_backplane_status)(BACKPLANE_STATUS *);
/* 27 */ int (*module_type_init)(struct synobios_ops *);
/* 28 */ int (*uninitialize)(void);
/* 29 */ int (*set_cpu_fan_status)(FAN_STATUS, FAN_SPEED);
/* 30 */ int (*set_phy_led)(SYNO_LED);
/* 31 */ int (*set_hdd_led)(SYNO_LED);
/* 32 */ int (*pwm_ctl)(SynoPWMCTL *);
/* 33 */ int (*check_microp_id)(const struct synobios_ops *);
/* 34 */ int (*set_microp_id)(void);
/* 35 */ int (*get_superio)(SYNO_SUPERIO_PACKAGE *);
/* 36 */ int (*set_superio)(SYNO_SUPERIO_PACKAGE *);
/* 37 */ int (*exdisplay_handler)(struct _SynoMsgPkt *);
/* 38 */ int (*read_memory)(SYNO_MEM_ACCESS*);
/* 39 */ int (*write_memory)(SYNO_MEM_ACCESS*);
/* 40 */ void (*get_cpu_info)(SYNO_CPU_INFO*, const unsigned int);
/* 41 */ int (*set_aha_led)(struct synobios_ops *, SYNO_AHA_LED);
/* 42 */ int (*get_copy_button_status)(void); // for matching userspace usage, button pressed = 0, else = 1
/* 43 */ int (*set_ok_to_remove_led)(unsigned char ledON);
/* 44 */ int (*get_sys_current)(unsigned long*);
/* 45 */ int (*hwmon_get_fan_speed_rpm)(SYNO_HWMON_SENSOR_TYPE *);
/* 46 */ int (*hwmon_get_psu_status)(SYNO_HWMON_SENSOR_TYPE *, int);
/* 47 */ int (*hwmon_get_sys_voltage)(SYNO_HWMON_SENSOR_TYPE *);
/* 48 */ int (*hwmon_get_backplane_status)(SYNO_HWMON_SENSOR_TYPE *);
/* 49 */ int (*hwmon_get_sys_thermal)(SYNO_HWMON_SENSOR_TYPE *);
/* 50 */ int (*hwmon_get_sys_current)(SYNO_HWMON_SENSOR_TYPE *);
/* 51 */ int (*get_disk_intf)(SYNO_DISK_INTF_INFO *);
};For v7 toolkits you will find it in ds.broadwell-7.0.dev.txz/usr/local/include/synobios/synobios.h:
// v7.0 example
// Formatting adjusted here (alignmnet, added indexes)
// Copyright (c) 2000-2003 Synology Inc. All rights reserved.
struct synobios_ops {
/* 0 */ struct module *owner;
/* 1 */ int (*get_brand)(void);
/* 2 */ int (*get_model)(void);
/* 3 */ int (*get_cpld_version)(void);
/* 4 */ int (*get_rtc_time)(struct _SynoRtcTimePkt *);
/* 5 */ int (*set_rtc_time)(struct _SynoRtcTimePkt *);
/* 6 */ int (*get_fan_status)(int, FAN_STATUS *);
/* 7 */ int (*set_fan_status)(FAN_STATUS, FAN_SPEED);
/* 8 */ int (*get_sys_temperature)(struct _SynoThermalTemp *);
/* 9 */ int (*get_cpu_temperature)(struct _SynoCpuTemp *);
#if defined(CONFIG_SYNO_PORT_MAPPING_V2)
/* 10 */ int (*set_disk_led)(DISKLEDSTATUS*);
#else /* CONFIG_SYNO_PORT_MAPPING_V2 */
/* 10 */ int (*set_disk_led)(int, SYNO_DISK_LED);
#endif /* CONFIG_SYNO_PORT_MAPPING_V2 */
/* 11 */ int (*set_power_led)(SYNO_LED);
/* 12 */ int (*get_cpld_reg)(CPLDREG *);
/* 13 */ int (*set_mem_byte)(MEMORY_BYTE *);
/* 14 */ int (*get_mem_byte)(MEMORY_BYTE *);
/* 15 */ int (*set_gpio_pin)(GPIO_PIN *);
/* 16 */ int (*get_gpio_pin)(GPIO_PIN *);
/* 17 */ int (*set_gpio_blink)(GPIO_PIN *);
/* 18 */ int (*set_auto_poweron)(SYNO_AUTO_POWERON *);
/* 19 */ int (*get_auto_poweron)(SYNO_AUTO_POWERON *);
/* 20 */ int (*init_auto_poweron)(void);
/* 21 */ int (*uninit_auto_poweron)(void);
/* 22 */ int (*set_alarm_led)(unsigned char);
/* 23 */ int (*get_buzzer_cleared)(unsigned char *buzzer_cleared);
/* 24 */ int (*set_buzzer_clear)(unsigned char buzzer_clear);
/* 25 */ int (*get_power_status)(POWER_INFO *);
/* 26 */ int (*get_backplane_status)(BACKPLANE_STATUS *);
/* 27 */ int (*module_type_init)(struct synobios_ops *);
/* 28 */ int (*uninitialize)(void);
/* 29 */ int (*set_cpu_fan_status)(FAN_STATUS, FAN_SPEED);
/* 30 */ int (*set_phy_led)(SYNO_LED);
/* 31 */ int (*set_hdd_led)(SYNO_LED);
/* 32 */ int (*pwm_ctl)(SynoPWMCTL *);
/* 33 */ int (*check_microp_id)(const struct synobios_ops *);
/* 34 */ int (*set_microp_id)(void);
/* 35 */ int (*get_superio)(SYNO_SUPERIO_PACKAGE *);
/* 36 */ int (*set_superio)(SYNO_SUPERIO_PACKAGE *);
/* 37 */ int (*exdisplay_handler)(struct _SynoMsgPkt *);
/* 38 */ int (*read_memory)(SYNO_MEM_ACCESS*);
/* 39 */ int (*write_memory)(SYNO_MEM_ACCESS*);
/* 40 */ void (*get_cpu_info)(SYNO_CPU_INFO*, const unsigned int);
/* 41 */ int (*set_aha_led)(struct synobios_ops *, SYNO_AHA_LED);
/* 42 */ int (*get_copy_button_status)(void); // for matching userspace usage, button pressed = 0, else = 1
/* 43 */ int (*hwmon_get_fan_speed_rpm)(SYNO_HWMON_SENSOR_TYPE *);
/* 44 */ int (*hwmon_get_psu_status)(SYNO_HWMON_SENSOR_TYPE *, int);
/* 45 */ int (*hwmon_get_sys_voltage)(SYNO_HWMON_SENSOR_TYPE *);
/* 46 */ int (*hwmon_get_backplane_status)(SYNO_HWMON_SENSOR_TYPE *);
/* 47 */ int (*hwmon_get_sys_thermal)(SYNO_HWMON_SENSOR_TYPE *);
/* 48 */ int (*hwmon_get_sys_current)(SYNO_HWMON_SENSOR_TYPE *);
/* 49 */ int (*set_ok_to_remove_led)(unsigned char ledON);
/* 50 */ int (*get_sys_current)(unsigned long*);
/* 51 */ int (*get_disk_intf)(SYNO_DISK_INTF_INFO *);
};-
Bromolow platform
- Models checked:
- DS: DS3615xs (the only one thoroughly tested)
- RS: RS3614xs, RS3614xs+, RS3614(RP)xs, RC18015xs+
- Sensors available:
hwmon_get_fan_speed_rpmhwmon_get_sys_voltagehwmon_get_sys_thermal
- Models checked:
-
Apollolake platform
- Models checked:
- DS: DS218+, DS418play, DS419+, DS718+, DS719+, DS620slim, DS918+ (the only one thoroughly tested), DS1019+
- RS: RS419+
- Sensors available:
hwmon_get_backplane_status
- Models checked:
-
Broadwellnk platform
- Models checked:
- DS: DS1621xs+, DS3622xs+,
- RS: RS1619xs+, RS3621xs+, RS3621(RP)xs, RS4021xs+
- Sensors mapping:
hwmon_get_fan_speed_rpmhwmon_get_sys_voltagehwmon_get_backplane_status(DS1621xs+ and RS1619xs+ only?)hwmon_get_sys_thermal
- Models checked:
To read more about the hwmon see the dedicated Hardware Monitor document.
Userland applications don't usually communicate with the hardware directly but ask the /dev/synobios to perform a
certain subset of actions. These actions are performed via ioctl mechanism. All commands are specified in a userland
header file synobios/synobios.h, available in .dev toolkits (e.g. ds.broadwell-7.0.dev.txz) under
usr/local/include/synobios/synobios.h:
// Formatting adjusted here
// Extracted using: grep -E '_IO(R|W|WR)?\(' './usr/local/include/synobios/synobios.h'
// Copyright (c) 2000-2003 Synology Inc. All rights reserved
#define SYNOIO_EXDISPLAY _IOWR(SYNOBIOS_IOC_MAGIC, 1, struct _SynoMsgPkt)
#define SYNOIO_NEXTEVENT _IOWR(SYNOBIOS_IOC_MAGIC, 2, u_int)
#define SYNOIO_RTC_CONTROL_READ _IOWR(SYNOBIOS_IOC_MAGIC, 3, struct _SynoRtcControlPkt)
#define SYNOIO_RTC_CONTROL_WRITE _IOWR(SYNOBIOS_IOC_MAGIC, 4, struct _SynoRtcControlPkt)
#define SYNOIO_RTC_TIME_READ _IOWR(SYNOBIOS_IOC_MAGIC, 5, struct _SynoRtcTimePkt)
#define SYNOIO_RTC_TIME_WRITE _IOWR(SYNOBIOS_IOC_MAGIC, 6, struct _SynoRtcTimePkt)
#define SYNOIO_BUTTON_POWER _IOWR(SYNOBIOS_IOC_MAGIC, 7, int)
#define SYNOIO_BUTTON_RESET _IOWR(SYNOBIOS_IOC_MAGIC, 8, int)
#define SYNOIO_BUTTON_USB _IOWR(SYNOBIOS_IOC_MAGIC, 9, int)
#define SYNOIO_SET_DISK_LED _IOWR(SYNOBIOS_IOC_MAGIC, 10, DISKLEDSTATUS)
#define SYNOIO_GET_FAN_STATUS _IOWR(SYNOBIOS_IOC_MAGIC, 11, FANSTATUS)
#define SYNOIO_SET_FAN_STATUS _IOWR(SYNOBIOS_IOC_MAGIC, 12, FANSTATUS)
#define SYNOIO_GET_DS_MODEL _IOWR(SYNOBIOS_IOC_MAGIC, 13, int)
#define SYNOIO_GET_DS_BRAND _IOWR(SYNOBIOS_IOC_MAGIC, 14, int)
#define SYNOIO_GET_CPLD_VERSION _IOWR(SYNOBIOS_IOC_MAGIC, 15, int)
#define SYNOIO_GET_TEMPERATURE _IOWR(SYNOBIOS_IOC_MAGIC, 16, int)
#define SYNOIO_GET_CPLD_REG _IOWR(SYNOBIOS_IOC_MAGIC, 17, CPLDREG)
#define SYNOIO_GET_AUTO_POWERON _IOWR(SYNOBIOS_IOC_MAGIC, 18, SYNO_AUTO_POWERON)
#define SYNOIO_SET_AUTO_POWERON _IOWR(SYNOBIOS_IOC_MAGIC, 19, SYNO_AUTO_POWERON)
#define SYNOIO_GET_MEM_BYTE _IOWR(SYNOBIOS_IOC_MAGIC, 20, MEMORY_BYTE)
#define SYNOIO_SET_MEM_BYTE _IOWR(SYNOBIOS_IOC_MAGIC, 21, MEMORY_BYTE)
#define SYNOIO_SET_ALARM_LED _IOWR(SYNOBIOS_IOC_MAGIC, 22, unsigned char)
#define SYNOIO_GET_HW_CAPABILITY _IOWR(SYNOBIOS_IOC_MAGIC, 23, CAPABILITY)
#define SYNOIO_GET_FAN_NUM _IOWR(SYNOBIOS_IOC_MAGIC, 24, int)
#define SYNOIO_GET_POWER_STATUS _IOWR(SYNOBIOS_IOC_MAGIC, 25, POWER_INFO)
#define SYNOIO_SHUTDOWN_LOG _IOWR(SYNOBIOS_IOC_MAGIC, 26, SYNO_SHUTDOWN_LOG)
#define SYNOIO_UNINITIALIZE _IOWR(SYNOBIOS_IOC_MAGIC, 27, int)
#define SYNOIO_GET_SYS_STATUS _IOWR(SYNOBIOS_IOC_MAGIC, 28, SYNO_SYS_STATUS)
#define SYNOIO_SET_SYS_STATUS _IOWR(SYNOBIOS_IOC_MAGIC, 29, sys_comp_stat_t)
#define SYNOIO_GET_MODULE_TYPE _IOWR(SYNOBIOS_IOC_MAGIC, 30, module_t)
#define SYNOIO_GET_BUZZER_CLEARED _IOWR(SYNOBIOS_IOC_MAGIC, 31, unsigned char)
#define SYNOIO_GET_BACKPLANE_STATUS _IOWR(SYNOBIOS_IOC_MAGIC, 32, BACKPLANE_STATUS)
#define SYNOIO_SET_UART2 _IOWR(SYNOBIOS_IOC_MAGIC, 33, unsigned char)
#define SYNOIO_GET_CPU_TEMPERATURE _IOWR(SYNOBIOS_IOC_MAGIC, 34, SYNOCPUTEMP)
#define SYNOIO_SET_CPU_FAN_STATUS _IOWR(SYNOBIOS_IOC_MAGIC, 35, FANSTATUS)
#define SYNOIO_SET_PHY_LED _IOWR(SYNOBIOS_IOC_MAGIC, 36, SYNO_LED)
#define SYNOIO_SET_HDD_LED _IOWR(SYNOBIOS_IOC_MAGIC, 37, SYNO_LED)
#define SYNOIO_SET_PWR_LED _IOWR(SYNOBIOS_IOC_MAGIC, 38, SYNO_LED)
#define SYNOIO_PWM_CTL _IOWR(SYNOBIOS_IOC_MAGIC, 39, SynoPWMCTL)
#define SYNOIO_CHECK_MICROP_ID _IO (SYNOBIOS_IOC_MAGIC, 40)
//#define SYNOIO_GET_EUNIT_TYPE _IOR (SYNOBIOS_IOC_MAGIC, 41, EUNIT_PWRON_TYPE) // Move into kernel
#define SYNOIO_SET_BUZZER_CLEAR _IOWR(SYNOBIOS_IOC_MAGIC, 42, unsigned char)
#define SYNOIO_WRITE_MEM _IOWR(SYNOBIOS_IOC_MAGIC, 43, SYNO_MEM_ACCESS)
#define SYNOIO_READ_MEM _IOWR(SYNOBIOS_IOC_MAGIC, 44, SYNO_MEM_ACCESS)
#define SYNOIO_SET_AHA_LED _IOWR(SYNOBIOS_IOC_MAGIC, 45, SYNO_AHA_LED)
#define SYNOIO_GET_COPY_BUTTON _IOWR(SYNOBIOS_IOC_MAGIC, 46, int) // for matching userspace usage, button pressed = 0, else = 1
#define SYNOIO_SET_AND_GET_UART2 _IOWR(SYNOBIOS_IOC_MAGIC, 47, unsigned char)
#define SYNOIO_GET_UART2 _IOWR(SYNOBIOS_IOC_MAGIC, 48, unsigned char)
#define SYNOIO_UART_DEBUG_CONTROL _IOWR(SYNOBIOS_IOC_MAGIC, 49, unsigned char)
#define SYNOIO_GET_SYS_CURRENT _IOWR(SYNOBIOS_IOC_MAGIC, 50, unsigned long)
#define SYNOIO_POWER_OFF _IOWR(SYNOBIOS_IOC_MAGIC, 65, int)
#define SYNOIO_MANUTIL_MODE _IOWR(SYNOBIOS_IOC_MAGIC, 128, int)
#define SYNOIO_RECORD_EVENT _IOWR(SYNOBIOS_IOC_MAGIC, 129, int)
#define SYNOIO_GPIO_PIN_READ _IOWR(SYNOBIOS_IOC_MAGIC, 205, GPIO_PIN)
#define SYNOIO_GPIO_PIN_WRITE _IOWR(SYNOBIOS_IOC_MAGIC, 206, GPIO_PIN)
#define SYNOIO_GPIO_PIN_READ _IOWR(SYNOBIOS_IOC_MAGIC, 205, int)
#define SYNOIO_GPIO_PIN_WRITE _IOWR(SYNOBIOS_IOC_MAGIC, 206, int)
#define SYNOIO_RTC_READ _IOWR(SYNOBIOS_IOC_MAGIC, 208, struct _SynoRtcPkt)
#define SYNOIO_RTC_READ_3 _IOWR(SYNOBIOS_IOC_MAGIC, 209, struct _SynoRtcPkt)
#define SYNOIO_SDA_SDL_READ _IOWR(SYNOBIOS_IOC_MAGIC, 210, int)
#define DISK_BADSECTOR_ON _IOWR(SYNOBIOS_IOC_MAGIC, 211, int)
#define DISK_BADSECTOR_OFF _IOWR(SYNOBIOS_IOC_MAGIC, 212, int)
#define DISK_BADSECTOR_SET _IOWR(SYNOBIOS_IOC_MAGIC, 213, struct disk_bs_map_ctlcmd)
#define DISK_BADSECTOR_GET _IOWR(SYNOBIOS_IOC_MAGIC, 214, struct disk_bs_map_ctlcmd)
#define DISK_BADSECTOR_RESET _IOWR(SYNOBIOS_IOC_MAGIC, 215, int)
#define HWMON_GET_SUPPORT _IOWR(SYNOBIOS_IOC_MAGIC, 301, SYNO_HWMON_SUPPORT)
#define HWMON_GET_CPU_TEMPERATURE _IOWR(SYNOBIOS_IOC_MAGIC, 302, SYNO_HWMON_SENSOR_TYPE)
#define HWMON_GET_FAN_SPEED_RPM _IOWR(SYNOBIOS_IOC_MAGIC, 303, SYNO_HWMON_SENSOR_TYPE)
#define HWMON_GET_PSU_STATUS _IOWR(SYNOBIOS_IOC_MAGIC, 304, SYNO_HWMON_SENSOR_TYPE)
#define HWMON_GET_SYS_VOLTAGE _IOWR(SYNOBIOS_IOC_MAGIC, 305, SYNO_HWMON_SENSOR_TYPE)
#define HWMON_GET_SYS_THERMAL _IOWR(SYNOBIOS_IOC_MAGIC, 306, SYNO_HWMON_SENSOR_TYPE)
#define HWMON_GET_HDD_BACKPLANE _IOWR(SYNOBIOS_IOC_MAGIC, 307, SYNO_HWMON_SENSOR_TYPE)
#define HWMON_GET_SYS_CURRENT _IOWR(SYNOBIOS_IOC_MAGIC, 308, SYNO_HWMON_SENSOR_TYPE)
#define SYNOIO_SUPERIO_READ _IOWR(SYNOBIOS_IOC_MAGIC, 216, SYNO_SUPERIO_PACKAGE)
#define SYNOIO_SUPERIO_WRITE _IOWR(SYNOBIOS_IOC_MAGIC, 217, SYNO_SUPERIO_PACKAGE)
#define SYNOIO_IS_FULLY_SUPPORT_EUP _IOWR(SYNOBIOS_IOC_MAGIC, 218, SYNO_EUP_SUPPORT)
#define SYNOIO_SET_OK_TO_REMOVE_LED _IOWR(SYNOBIOS_IOC_MAGIC, 219, unsigned char)
#define SYNOIO_CHECK_DISK_INTF _IOWR(SYNOBIOS_IOC_MAGIC, 220, SYNO_DISK_INTF_INFO)
#define SYNOIO_HWSTATUS _IOR ('A', 102, struct _Synohw)
#define SYNOIO_TESTING _IOW ('P', 104, int)
#define SYNOIO_SERIAL _IOR ('A', 105, int)
#define SYNOIO_HDBACK _IOW ('P', 106, int)
#define SYNOIO_SYNOVER _IOR ('A', 107, unsigned long)
#define SYNOIO_GETSERIALNUM _IOR ('A', 108, off_t)
#define SYNOIO_SETHWSTATUS _IOW ('P', 109, HWBLOCK)
#define SYNOIO_HWHDSUPPORT _IOR ('A', 110, int)
#define SYNOIO_HWTHERMALSUPPORT _IOR ('A', 111, int)
#define SYNOIO_POWEROFF _IO ('A', 114)
#define SYNOIO_SETHWSTATUS_INIT _IOW ('P', 111, HWBLOCK)
#define SYNOIO_HWSTATUS_CUSTOM _IOR ('A', 112, struct _Synohw_custom)
#define SYNOIO_SET_EVENT _IOW ('P', 113, u_int)
#define SYNOIO_BIOSVER _IOWR('P', 115, BVS)