/shared2/sys/SYSCONF
The SYSCONF contains many Wii system settings.
Its size is always 0x4000, and its values are always encoded in Big Endian. Size/Length indicators are usually "length minus one" (ie. a length of 0x06 means that 7 bytes of data follow.)
Conventions for adding or removing settings to the file are currently unknown, but shouldn't be too hard to determine--although that's not necessarily a useful function.
File structure
| File offset | Size | Description |
|---|---|---|
0x0000
|
4 bytes | Header magic (SCv0)
|
0x0004
|
2 bytes | Number of items in this file |
0x0006
|
2 bytes each | Item offsets, one for every item ("Number of items" times) |
| varies | 2 bytes | Offset past the end of the last valid entry, follows immediately after "Item offsets" |
| varies | varies | Items, each one at an offset specified by "Item offsets" Unused offsets are zeroed completely |
0x3FB0 ?
|
2 bytes each | Lookup table for specific item names, 38 entries long. When the value is non-zero, it contains the offset where the item offset is stored (name LUT → item offset → actual item) The offset is a guess, as well as the length (based on names dumped from the system menu). Assuming there are no other item names in this LUT and there is one entry for every known setting, it should be located (76 + 4) bytes from the end of file |
0x3FFC
|
4 bytes | EOF magic (SCed)
|
Item structure
| Offset | Size | Description |
|---|---|---|
0x00
|
1 byte | Item header, consists of two components: Item type: 3 high-order bits indicate the item type Item name length: 5 low-order bits indicate the name of this items length (minus one) |
0x01
|
varies | Item name, length specified by the item name length in the header. |
| varies | varies | Item data, length depends on the Item type. |
Types
| Name | Value | Size | Note |
|---|---|---|---|
| BIGARRAY | 1 | varies | 2 bytes of length (minus one), followed by $n bytes of data
|
| SMALLARRAY | 2 | varies | 1 byte of length (minus one), followed by $n bytes of data
|
| BYTE | 3 | 1 byte | |
| SHORT | 4 | 2 bytes | |
| LONG | 5 | 4 bytes | |
| LONGLONG | 6 | 8 bytes | |
| BOOL | 7 | 1 byte | 0 is false, anything else is true (most commonly 1)
|
Note that both BIGARRAY and SMALLARRAY store the length (minus one) in the beginning and their actual size must be calculated from there. The name "ARRAY" need not indicate the actual content type; most settings store an application defined structure in them.
Known settings
BT Settings
| Name | Type | Size | Values | Description |
|---|---|---|---|---|
| BT.BAR | BYTE | 1 | 0 = bottom, 1 = top | Sensor bar position |
| BT.CDIF | BIGARRAY | 0x205 | ? | ? |
| BT.DINF | BIGARRAY | 0x461 | Bluetooth Addresses plus Device Names | List of Wiimotes "synced" to the system |
| BT.MOT | BYTE | 1 | 0 = off, 1 = on | Wiimote motor |
| BT.SENS | LONG | 4 | 0-4? | Wiimote sensitivity setting |
| BT.SPKV | BYTE | 1 | varies | Wiimote speaker volume |
IPL Settings
| Name | Type | Size | Values | Description |
|---|---|---|---|---|
| IPL.AR | BYTE | 1 | 0 = 4:3, 1 = 16:9 | Aspect ratio setting |
| IPL.ARN | ? | ? | ? | ? |
| IPL.CB | LONG | 4 | ? | Counter Bias (difference between RTC and local time, in seconds) |
| IPL.CD | BOOL | 1 | bool | Config Done flag -- has initial setup been performed? |
| IPL.CD2 | BOOL | 1 | bool | Config2 Done flag -- has network setup been performed? |
| IPL.DH | BYTE | 1 | signed byte | Display Offset (horizontal) |
| IPL.E60 | BYTE | 1 | 0 = 50Hz, 1 = 60Hz | Use EuRGB60/PAL60 |
| IPL.EULA | BOOL | 1 | bool | EULA Done flag -- has EULA been acknowledged? |
| IPL.FRC | LONG | 4 | ? | "Free Channel App Count": Number of free Channel slots on the system menu (max. 48 slots total) |
| IPL.INC | LONG | 4 | ? | "Installed Channel App Count": Number of used Channel slots on the system menu (max. 48 slots total) |
| IPL.IDL | SMALLARRAY | 3 | 0 = off, 1 = on 0 = off, 1 = dim, 2 = bright |
WiiConnect24 standby settings (Standby connection, Slot illumination) |
| IPL.LNG | BYTE | 1 | 0,1 | System Language, see conf.c for some values |
| IPL.NIK | SMALLARRAY | 0x16 | struct: UTF16BE string, max. 10 characters, zero-padded Last byte = string length of the nickname |
Console Nickname |
| IPL.PC | SMALLARRAY | 0x4A | struct | Parental Controls |
| IPL.PGS | BYTE | 1 | 0 = off, 1 = on | Use Progressive Scan |
| IPL.SADR | BIGARRAY | 0x1008 | lots | "Simple Address" Contains some region info Offset 0 is a Country Code and offset 1 seems to be a more localized region code. |
| IPL.SND | BYTE | 1 | 0 = Mono, 1 = Stereo, 2 = Surround | Sound setting |
| IPL.SSV | BYTE | 1 | 0 = off, 1 = on | Screen Saver/burn-in reduction |
| IPL.TID | ? | ? | ? | Unknown system setting? |
| IPL.UPT | BYTE | 1 | 2,? | Update Type |
Misc Settings
| Name | Type | Size | Values | Description |
|---|---|---|---|---|
| DEV.BTM | BYTE | 1 | 0 = Production, 1 = Development | Bootmode (used for NDEV) |
| DEV.CTC | BYTE | 1 | 0 | ? |
| DEV.DSM | BYTE | 1 | 0 = Disabled, 1 = Enabled, 2 = Debug | Drive saving (used for NDEV) |
| DEV.VIM | BYTE | 1 | ? | ? |
| DVD.CNF | BYTE | 1 | ? | DVD Config? |
| MPLS.MOVIE | BYTE | 1 | 0 = Watched, 1 = Not Watched | Wii Motion Plus Tutorial Movie |
| NET.CNF | ? | ? | ? | Network Config? |
| NET.CTPC | LONG | 4 | bit 0x01 = Internet Channel bit 0x02 = Wii Message Board, bit 0x04 = Wii Points/purchases |
Parental Control network content restrictions |
| NET.PROF | ? | ? | ? | Network Config? |
| NET.WCFG | LONG | 4 | 0 = off, 1 = on | WiiConnect24 Configuration flag |
| NET.WCPC | LONG | 4 | ? | WiiConnect24 Parental control flags? |
| WWW.RST | BYTE | 1 | 0 = no, 1 = yes | Restrict Internet Channel |