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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.
The PS4 has many kernel devices. Below is a list of the known ones.
 
See also [https://psdevwiki.com/ps5/Devices PS5 devices].


{| class="wikitable sortable"
{| class="wikitable sortable"
|-
|-
! Device name !! Accessible? !! Description !! Notes
! Module name !! Accessible? !! Description !! Notes
|-
|-
| gc || Yes || ?GPU/Graphics? ?Controller/Core? || It could also stand for Graphics Core (from [https://en.wikipedia.org/wiki/Graphics_Core_Next])
| gc || Yes || ?GPU/Graphics? ?Controller/Core? || could be also graphics core (from https://en.wikipedia.org/wiki/Graphics_Core_Next )
|-
|-
| dce || ? || Display Controller Engine || -
| dce || ? || Display Controller Engine || -
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| hdmi || ? || HDMI || -
| hdmi || ? || HDMI || -
|-
|-
| s3da || ?System/Software? 3D Acceleration || || See Marcan's slides about PS4 GPU Linux driver.
| s3da || ?System? 3D Acceleration || || Probably related to 3D Acceleration. See Marcan's slides about PS4 GPU Linux driver.
|-
|-
| dbggc || Yes || Debug ?GPU/Graphics? ?Controller/Core? || -
| dbggc || Yes || Debug ?GPU/Graphics? ?Controller/Core? || -
|-
|-
| ctrlp || ? || Control ?Process? || Like on PS Vita DevKit. See [https://wiki.henkaku.xyz/vita/SceDeci4pCtrlp].
| ctrlp || ? || Control ?Process? || Like on PS Vita DevKit.
|-
|-
| camera || Yes || Camera || Camera module for [[Luke]], the PlayStation 4 camera.
| camera || Yes || Camera || (PlayStation) Camera module
|-
|-
| wlan || ? || Wireless LAN || -
| wlan || ? || Wireless LAN || -
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| ajm || Yes || Audio Co-processor Job Manager || -
| ajm || Yes || Audio Co-processor Job Manager || -
|-
|-
| sdbgp || ? || System Debug ?Process? || Like on PS Vita DevKit. See [https://wiki.henkaku.xyz/vita/SceDeci4pSDbgp].
| sdbgp || ? || System Debug ?Process? || Like on PS Vita DevKit.
|-
|-
| audioout || ? || Audio Out || -
| audioout || ? || Audio Output || -
|-
|-
| screenshot || ? || Screenshot || -
| screenshot || ? || Screenshot || -
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