service: placeholder handlers for known but unimplemented commands

Add StubReplyZeroed, StubReplyEvent and StubReplyInterface to
ServiceFrameworkBase: for Switch 2 callers they reply with zeroed data, with
zeroed data and a copy handle to an event that never fires, or with an nx2:
stub interface; other callers get the unimplemented-function path as before.
Each command is logged once.

Use them for the commands of the interfaces games open that had no handler
or a nullptr one (hid, am, audio, aoc, caps, mii, set, lm, acc, ssl, bsd and
the nx2 vi2/gsv/gpu/syncpt sessions): a command that returns an interface now
returns one, a command that returns a handle returns an event, so callers no
longer get handle 0 or object 0 back.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/core/hle/service/caps/caps_su.cpp b/src/core/hle/service/caps/caps_su.cpp
index 4ecfc840e4..b19e6b7a27 100644
--- a/src/core/hle/service/caps/caps_su.cpp
+++ b/src/core/hle/service/caps/caps_su.cpp
@@ -21,10 +21,10 @@ IScreenShotApplicationService::IScreenShotApplicationService(
     // clang-format off
     static const FunctionInfo functions[] = {
         {32, C<&IScreenShotApplicationService::SetShimLibraryVersion>, "SetShimLibraryVersion"},
-        {201, nullptr, "SaveScreenShot"},
+        {201, &IScreenShotApplicationService::StubReplyZeroed, "SaveScreenShot"},
         {203, C<&IScreenShotApplicationService::SaveScreenShotEx0>, "SaveScreenShotEx0"},
         {205, C<&IScreenShotApplicationService::SaveScreenShotEx1>, "SaveScreenShotEx1"},
-        {210, nullptr, "SaveScreenShotEx2"},
+        {210, &IScreenShotApplicationService::StubReplyZeroed, "SaveScreenShotEx2"},
     };
     // clang-format on