Devices
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The PS4 has many kernel devices that can be accessed through IOCTL. Some of them have usermode module equivalents, some like "sbl" consist in Secure Modules and some like "camera" make use of a dedicated firmware stored in kernel memory.
See also PS5 devices.
Device Listing[edit | edit source]
Unique devices are listed here without the "/dev/" prefix for readability. Benign devices like /dev/null are omitted for brevity's sake.
TODO: merge from Files_on_the_PS4#Devices.
| Device name | Accessible ?by kernel? | Description | Notes |
|---|---|---|---|
| gc | Yes | ?GPU/Graphics? ?Controller/Core? | It could also stand for Graphics Core (from [1]) |
| dce | ? | Display Controller Engine | - |
| hmd | ? | Head-mounted Display | Morpheus. https://en.wikipedia.org/wiki/Head-mounted_display |
| mas | ? | ?Mass Storage? | - |
| bt | ? | Bluetooth | - |
| sdma | ? | (GPU) System DMA Kernel | - |
| hdmi | ? | HDMI | - |
| s3da | ?System/Software? 3D Acceleration | See Marcan's slides about PS4 GPU Linux driver. | |
| dbggc | Yes | Debug ?GPU/Graphics? ?Controller/Core? | - |
| ctrlp | ? | Control ?Process? | Like on PS Vita DevKit. See [2]. |
| camera | Yes | Camera | Camera module for Luke, the PlayStation 4 camera. |
| wlan | ? | Wireless LAN | - |
| wlanbt | Wireless LAN Bluetooth | - | - |
| regmgr | Yes | Registry Manager | - |
| vce | ? | Video Coding Engine | - |
| hmddfu | Yes | Head-mounted Display Device Firmware Update | Morpheus firmware updater |
| mbus | ? | ?Media/Memory/Management? Bus | See libSceMbus.sprx. |
| uvd | ? | Unified Video Decoder | GPKMD? |
| hid | Yes | Human Interface Device | - |
| sbl | Yes | SBL Kernel module | - |
| av_control | ? | Audio/Video Controller | - |
| ipmimgr | Yes | IPMI Manager | Used by ShellCore for tasks. |
| ajm | Yes | Audio Co-processor Job Manager | - |
| sdbgp | ? | System Debug ?Process? | Like on PS Vita DevKit. See [3]. |
| audioout | ? | Audio Out | - |
| screenshot | ? | Screenshot | - |
| bluetooth_hid | ? | Bluetooth Human Interface Device | - |
| es0 | ? | ? | Exists according to some strings in some modules. |
| Device Name | Description | Notes | Used in |
|---|---|---|---|
| cd0 | contains 4XXR | 80010002, https://pastebin.com/zP8EZFrW | |
| da0 | contains 4002XXXX | 80010002, https://pastebin.com/BxqFjFts | |
| da0x0.crypt | contains preinst img | 80010002, mini-syscore.elf, safemode.elf, SceShellCore.elf, orbis_swu.self | |
| da0x1.crypt | contains preinst2 img | 80010002, mini-syscore.elf, safemode.elf, SceShellCore.elf, orbis_swu.self | |
| da0x2 | contains eap_kernel | 16 MB. Usually named like /dev/sdX5. | 80010002, safemode.elf, SceShellCore.elf, orbis_swu.self |
| da0x3.crypt | contains eap_vsh img | 80010002, mini-syscore.elf, safemode.elf, SceShellCore.elf, orbis_swu.self | |
| da0x4b.crypt | contains system img | 80010002, safemode.elf, SceShellCore.elf, orbis_swu.self (mini-syscore.elf and safemode.elf only 4) | |
| da0x5b.crypt | contains system_ex img | 80010002, safemode.elf, SceShellCore.elf, orbis_swu.self (mini-syscore.elf included 5) | |
| da0x6.crypt | contains old swap | ||
| da0x6x0.crypt | contains new swap | 80010002, mini-syscore.elf, SceSysCore.elf | |
| da0x6x1.crypt | contains kernel log | 80010002 | |
| da0x6x2.crypt | contains user log | 80010002, mini-syscore.elf | |
| da0x8.crypt | contains app_tmp | safemode.elf, SceShellCore.elf | |
| da0x9.crypt | contains system_data img | mini-syscore.elf, safemode.elf, SceSysCore.elf, SceShellCore.elf, orbis_swu.self | |
| da0x12.crypt | contains update img | mini-syscore.elf, safemode.elf, SceShellCore.elf, orbis_swu.self | |
| da0x13.crypt | contains user img | mini-syscore.elf, safemode.elf, SceShellCore.elf, orbis_swu.self | |
| da0x14.crypt | contains eap_user img | mini-syscore.elf, safemode.elf, SceShellCore.elf, orbis_swu.self | |
| da0x15.crypt | contains app_reserved | safemode.elf, libkernel_sys.sprx, SceShellCore.elf | |
| da1 | usb device | 80010002, mini-syscore.elf, safemode.elf, libSceWebKit2.sprx, libSceWebKit2Secure.sprx, mscorlib.dll.sprx, System.Core.dll.sprx, NPXS20001 app.exe.sprx, orbis_swu.self | |
| pup_update0 | contains PUP | 80010002, safemode.elf, SceShellCore.elf, orbis_swu.self | |
| sc_fw_update0 | contains 4000XXXX/4001XXXX | 80010002, safemode.elf, SceShellCore.elf, orbis_swu.self | |
| sflash0 | Entire Serial Flash | 32MB (0x2000000) | |
| sflash0s0 | Serial Flash segment 0 | 2MB (0x200000) | |
| sflash0s1 | Serial Flash segment 1 | 30MB (0x1E00000) | |
| sflash0s0x0 | contains blank/0xFF data | 192kB (0x30000) | SceSysCore.elf |
| sflash0s0x32, sflash0s0x32b | contains active/inactive southbridge emc (0xC000XXXX) | 384kB (0x60000) | 80010002, safemode.elf, SceShellCore.elf, orbis_swu.self |
| sflash0s0x33 | contains southbridge eap (C001XXXX) | 512kB (0x80000) | 80010002, safemode.elf, SceShellCore.elf, orbis_swu.self |
| sflash0s0x34 | contains Serial Flash NVS | 48kB (0xC000) | |
| sflash0s0x38 | contains wifi firmware (C002XXXX) | 512kB (0x80000) | 80010002, safemode.elf, SceShellCore.elf, orbis_swu.self |
| sflash0s1.cryptx1 | contains individual data/idstorage | 80010002, SceShellCore.elf | |
| sflash0s1.cryptx2, sflash0s1.cryptx2b | contains active/inactive Secure Loader (8000XXXX) | 80010002, safemode.elf, SceShellCore.elf, orbis_swu.self | |
| sflash0s1.cryptx3, sflash0s1.cryptx3b | contains active/inactive CoreOS (Secure Kernel, Kernel, Secure Modules) (8001XXXX) | 80010002, safemode.elf, SceShellCore.elf, orbis_swu.self, BdmvPlayerCore.elf, BdvdPlayerCore.elf | |
| sflash0s1.cryptx6 | contains Virtual TRM | ||
| sflash0s1.cryptx39 | contains bd revocation list | 80010002, BdmvPlayerCore.elf , BdvdPlayerCore.elf | |
| sflash0s1.cryptx40 | contains blank/0xFF data | 80010002, mini-syscore.elf, safemode.elf, SceShellCore.elf, orbis_swu.self |
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