AnyPS5/docs/dev/debt/libSceKeyboard.md

libSceKeyboard technical debt

Functional

• sceKeyboardGetKey2Char: the original validates HID usages 4 through 231 before the handle and preserves unconverted HID usages in the output with processed == 0. The host instead accepts out-of-range usages and writes zero for unconverted keys. The original ignores the Kana LED, while the host throws for it. This partially implemented function contains NotImplemented_nid_no_patch(__func__); its body is preserved under the requested restriction. One title (PPSA15246) disassembled for this entry calls it once with an output buffer cleared to 24 bytes, uses a character only when the result is 0 and the first output byte is nonzero, and then reads the 16-bit value at offset 8, which agrees with processed and char_code as laid out here. Which other output fields it reads and what its other arguments mean are not shown.

Unknown function info

• sceDbgKeyboardClose, sceDbgKeyboardGetKey2Char, sceDbgKeyboardInit, sceDbgKeyboardOpen, sceDbgKeyboardRead, sceDbgKeyboardReadState (libSceKeyboard) - names and NIDs are present in the PS5 3.20 export inventory, but no credible prototypes were found. They are declared without parameters solely to resolve known imports; this is not an ABI claim.
• sceKeyboardGetDeviceInfo and sceKeyboardSetProcessFocus: pointer arguments are passed to device ioctls. Device-info storage is 168 bytes in the connection-query caller, but its fields and the process-focus layout remain unresolved.
• sceKeyboardConnectPort, sceKeyboardDisconnectPort and sceKeyboardDeviceOpen: argument widths are confirmed. The meaning/order of the two 32-bit port arguments and the final 32-bit device-open argument still require the device-service backend.
• sceKeyboardPadEmulateClose and sceKeyboardPadEmulateOpen: the supplied keyboard library has neither export; their signatures remain unresolved.