Services API

Nintendo provides application developers with an API, which behind the scenes communicate with certain services. Services in this sense are system processes running in the background which wait for incoming requests. When a process wants to communicate with a service, it first needs to get a handle to the named service, and then it can communicate with the service via interprocess communication. Each service has a name up to 8 characters, for example "nim:u".

Handles for services are retrieved from the service manager port, "srv:". Services are an abstraction of ports, they operate the same way except regular ports can have their handles retrieved directly from a SVC.

For a description of how commands and arguments are passed to services, see IPC Command Structure.

List of services:

Old3ds	Services	Ports	Notes
Yes	Filesystem services‎	fs:USER, fs:LDR, fs:REG
Yes	Process Services‎
Yes	PXI Services‎	PxiFS0, PxiFS1, PxiFSB, PxiFSR, PxiPM, pxi:am9, pxi:dev, pxi:mc, pxi:ps9
Yes	Application Manager Services	am:net, am:u, am:sys, am:pipe
Yes	Process Manager Services	pm:app, pm:dbg
Yes	NIM Services
Yes	Config Services
Yes	NS and APT Services
Yes	RO Services
Yes	NDM Services
Yes	CSND Services
Yes	DSP Services
Yes	GSP Services
Yes	IR Services
Yes	I2C Services
Yes	GPIO Services
Yes	HID Services
Yes	PTM Services
Yes	NWM Services
Yes	HTTP Services
Yes	SSL Services
Yes	Socket Services
Yes	AC Services
Yes	Friend Services
Yes	PDN Services
Yes	SPI Services
Yes	Loader Services
Yes	MCU Services
Yes	MIC Services
No	NFC Services
No	MVD Services
No	QTM Services

List of PXI services:

• Filesystem services PXI
• Process Services PXI
• Application Manager Services PXI
• Process Manager Services PXI
• Development Services PXI
• Gamecard Services PXI
• Legacy FIRM PXI (TWL_FIRM/AGB_FIRM)

List of ports:

• ErrDisp
• Services

See Error codes.