#[no_mangle] pub unsafe extern "C" fn sceKernelRegisterExitCallback( id: SceUid ) -> i32
Register callback.
By installing the exit callback the home button becomes active. However if sceKernelExitGame is not called in the callback it is likely that the PSP will just crash.
sceKernelExitGame
id - Callback id
id
< 0 on error