/dev/net/kd/request

The main WiiConnect24 calls are done through this device.

Ioctl listing

Inbuf addr & 3 is written to outbuf for most or all ioctls.

Request number	Name	Input	Output	Notes
1	ExecSuspendScheduler	none	4 bytes
2	ExecTrySuspendScheduler	32 bytes	32 bytes
3	ExecResumeScheduler	none	4+ bytes
4	KD_GetTimeTriggers	?	12 bytes	Writes the time triggers for the minutes of the hour for when KD_Download and KD_CheckMail are triggered to outbuf + 4.
5	KD_SetTimeTriggers[check]	8+ bytes	4+ bytes	Sets the time triggers mentioned above to the two u32's in inbuf. Both values must be under 259200.
6	NWC24iStartupSocket	none	32 bytes
7	NWC24iCleanupSocket	none	32 bytes
8	NWC24iLockSocket	none	32 bytes
9	NWC24iUnlockSocket	none	32 bytes
0xa	NWC24iCheckMailNow	none	32 bytes
0xb	NWC24iSendMailNow	none	8+ bytes	Connect and send mail?
0xc	NWC24iReceiveMailNow	?	8+ bytes
0xd	NWC24iSaveMailNow	none	32 bytes	Saves temporary dlcnt.bin mail content to wc24recv.mbx immediately. Actual outbuf size is 4, outbuf+0 is KD_SaveMail/KD_ProcessMail retval.
0xe	NWC24iDownloadNowEx	32 bytes	32 bytes	inbuf + 0 u32 is flags, inbuf + 6 u16 is nwc24dl.bin entry index, inbuf + 8 u32 is subTask bitmask. Starting at outbuf + 8 is a buffer of unknown size. Flags bit 1 must be set to manually specify a task/entry. When clear, a task is chosen automatically with the same mechanism used for choosing a task in the background.(When bit 1 is clear with this ioctl from Broadway, nothing will be downloaded since no entries will be ready for download due to dl frequencies fields.) subTask bitmap is a bitmap of subTasks to download when flags bit 2 is set, so setting bit 0 will download subTask zero, and so on. When flags is negative with bit 31 set, KD will sync the current UTC time with the time server. Outbuf+0 is KD_Download retval.
0xf	NWC24iRequestGenerateUserId	none	32 bytes
0x10	NWC24iRequestRegisterUserId	none	32 bytes
0x1e	NWC24iGetSchedulerStat	none	none
0x1f	NWC24iSetFilterMode	32 bytes	32 bytes
0x20	NWC24iSetDebugMode	32 bytes	32 bytes
0x21	KD_SetNextWakeup	4 bytes	4 bytes	Input is a u32 determining the seconds till next time STM_Wakeup is called.
0x22	NWC24iSetScriptMode	32 bytes	32 bytes
0x28 (async?)	NWC24iRequestShutdown	8 bytes	4 bytes	Input is a u32 for the event type. Set a shutdown event flag. If the type is 3, this simply turns off the USB keyboard LEDs and returns 0. Otherwise, this calls KD_ForceCleanupSoCtrl internally and the flag that is set will cause all KD processes that are running (downloading, mail, NAND writing, etc.) to stop. STM calls this ioctl in the Wakeup function to "shut down KD", which can happen in the following cases: /dev/stm/immediate ioctl 0x2005 is used. The console is idle and the DI cover polling thread has detected that the cover was closed (i.e. a disc was inserted). The console is idle and a GPIO event handler is triggered (i.e. the POWER button was pressed).