docs(debt): note the arguments a title passes to sceAudioInAsyncOpen

Co-Authored-By: Claude Sonnet 5.5 <[email protected]>

docs/dev/debt/libSceAudioIn.md

@@ -40,5 +40,5 @@
 ### Functional
 
 - [sceAudioInIsPadEmbeddedMic](../../../core/libs/prx/libSceAudioIn/Export.cpp) (libSceAudioIn) - returns 0 for every open port: on the console it returns 1 when the port captures from the controller's built-in microphone and 0 for another input device, but ports here capture from the host's default input device
-- [sceAudioInHqOpen, sceAudioInAsyncOpen](../../../core/libs/prx/libSceAudioIn/Export.cpp) - PS5 wrapper validation requires 48000 Hz followed by exactly 128 samples for both calls; HqOpen then requires format 2. The host uses the same SDL capture path for both, so native asynchronous scheduling and high-quality processing are not reproduced. Common port validation, device selection and host capture pacing remain incomplete.
+- [sceAudioInHqOpen, sceAudioInAsyncOpen](../../../core/libs/prx/libSceAudioIn/Export.cpp) - PS5 wrapper validation requires 48000 Hz followed by exactly 128 samples for both calls; HqOpen then requires format 2. The host uses the same SDL capture path for both, so native asynchronous scheduling and high-quality processing are not reproduced. Common port validation, device selection and host capture pacing remain incomplete. One title (PPSA03355, in its libfmod plugin) disassembled for this entry calls `sceAudioInAsyncOpen` from one call site (0xe5972) with index 0, 128 samples, 48000 Hz and a last argument of 2, plus a type argument of 0 or 1, which agrees with the 48000 Hz and 128 samples above; it stores the result in a slot of its own and branches on a negative result. What the last argument 2 means is not shown.
 - [sceAudioInGetGain, sceAudioInGetRerouteCount](../../../core/libs/prx/libSceAudioIn/Export.cpp) - GetGain writes 1.0f before handle validation and returns 0x80260105 for a null output, as confirmed by the PS5 module. Native handle bit checks and uninitialized/inactive port errors differ from the host port table. Native reroute counters follow device reassignment; the host opens each SDL device once and reports zero.