Controller Applet
This is the controller applet which can be launched by Home Menu. Official sw uses this under nn::hid, and nn::hid::system with the "ForSystem" funcs.
See AM_services#Library_Applets.
Library Applet Versions
| System Version | Value |
|---|---|
| [1.0.0+] | 0x3 |
| [3.0.0+] | 0x4 |
| [6.0.0+] | 0x5 |
| [8.0.0+] | 0x7 |
ControllerSupportArgPrivate
This is "nn::hid::system::ControllerSupportArgPrivate". This is a 0x14-byte struct pushed for input storage. The data here is setup by sdknso internally without exposing it to the user.
PlayStartupSound is set to (Flag1 != 0) & (Flag0 != 0).
| Offset | Size | Description |
|---|---|---|
| 0x0 | 0x4 | Size of this ControllerSupportArgPrivate struct. |
| 0x4 | 0x4 | Size of the storage following this one (#ControllerSupportArg or #ControllerFirmwareUpdateArg). |
| 0x8 | 0x1 | Flag0 |
| 0x9 | 0x1 | Flag1 |
| 0xA | 0x1 | #Type |
| 0xB | 0x1 | nn::hid::system::ControllerSupportCaller, the default is value 0.
|
| 0xC | 0x4 | Output from GetSupportedNpadStyleSet. |
| 0x10 | 0x4 | Output from GetNpadJoyHoldType. |
ControllerSupportArg
This is "nn::hid::ControllerSupportArg". This is a 0x21C-byte (0x430-byte with version 0x7) struct pushed for input storage.
Layout with the original version:
| Offset | Size | Description |
|---|---|---|
| 0x0 | 0x18 | ? |
Layout starting with version 0x7:
| Offset | Size | Description |
|---|---|---|
| 0x0 | 0x28 | ? |
With both versions, the rest of the struct is an array containing 0x81-byte entries. With the original version there's 4 entries allocated, starting with version 0x7 there's 8 entries allocated. This contains the ExplainText string which includes the NUL-terminator. Each entry corresponds to a controller NpadId, starting with NpadId/controller 0.
Regardless of version, the default data for this struct is setup by setting u32 +0 to 0x01010400, u8 +4 to 0x1, with the rest being cleared as needed. sdknso itself only calls the func for this from ShowControllerStrapGuide, since that's the only time sdknso itself writes to ControllerSupportArg besides ExplainText (and is also the only case where the ControllerSupportArg is not user-specified).
ControllerFirmwareUpdateArg
This is "nn::hid::ControllerFirmwareUpdateArg". This is a 4-byte struct pushed for the input storage. The default value is 0.
Type
| Name | Type value | Description |
|---|
ControllerSupportResultInfo
This is "nn::hid::ControllerSupportResultInfo". This is a 8-byte struct.
Usage
User-processes should push a common arguments struct, an #ControllerSupportArgPrivate, then #ControllerSupportArg or #ControllerFirmwareUpdateArg.
On success, an output storage should be popped, with size 0xC being used to read from there (sdknso ignores the actual storage size). When #ControllerSupportArg was previously used, the first 8-bytes are copied to the output #ControllerSupportResultInfo (which the user can ignore), otherwise it's ignored. The remaining u32 determines the Result:
- When #ControllerSupportArg was previously used:
- 0: Result = 0.
- 2: Result = 0x183CCA.
- Other values: Result = 0x183ACA.
- When #ControllerFirmwareUpdateArg was previously used:
- 0 is success, everything else is handled by returning 0x1902CA.