Devices List

Path	Name of Device	Usage	Notes
/dev_usb00[0-7]/	USB	External USB (Pendrive or External USB Disk)	FAT32/FAT filesystem
/dev_hdd0/	HDD	GameOS partition	UFS filesystem
/dev_hdd1/	HDD	Cache partition	FAT32 filesystem
/dev_hdd2/	HDD	OtherOS partition	Any filesystem supported by linux
/dev_ms/	MMS	Magic Memory Stick Device	FAT32/FAT filesystem
/dev_cf/	CF Card	CF Card Device	FAT32/FAT filesystem
/dev_sd/	SD Card	SD Card Device	FAT32/FAT filesystem
/dev_bdvd/	BDVD	Bluray Device?
/dev_flash[2-3]/	VFLASH	Device for VFLASH	FAT filesystem
/dev_rflash/	RFLASH	Device for NOR/NAND Flash
/dev_eflash/	EFLASH	Unknown???
/dev_SYSTEM/	SYSTEM???	Unknown???
/dev/sc[0-3]	SYSCON	Syscon Device
/dev/ioif0	INPUT/OUTPUT INTERFACE	ioif Device
/dev/net0	Network	Network Device
/dev/rbd0	Blu-ray Drive	Blu-ray Device
/dev/sd_detector	SD Card Detector?	???
/dev/hvlog0	HyperVisor Log	HyperVisor Log Device	Used for storing HyperVisor Logs
/dev/cp0	COMMUNICATION PROCESSOR?	Communication Processor Device?
/dev/flash_num	Flash Enumerator	Flash Enumerator Device
/dev/encdec0	ENCDEC	EncDec Device	Inside South Bridge. Used for Encrypting/Decrypting HDD Content
/app_home/	APP_HOME	app_home Device	Virtual Device
/dev_ps2disc[1]/	PS2DISC	PS2 Disc Device	(Backwards Compatibility?)
/dev_plus/	PLUS	PLUS Device	Probably used to manage PS PLUS content
/dev_MCA/	Memory Card Adapter	Memory Card Adapter Device	Used to connect a PS1/PS2 memory card to PS3 (PlayStation Card Adapter)

IOS Related