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int sceRegOpenCategory(REGHANDLE h, const char *name, int mode, REGHANDLE *hd);

mode==1 : O_RDONLY
mode==2 : O_CREAT

use this code:

It's works!

sceRegFlushCategory call the ioctl to flush file at end of function, but I can ignore it. My prx works at game mode, I think there is no game writting registry.

very thanks! I' will try first.

My firmware is 3.71M33-4.

If I call sceIoGetstat directly from my own prx(user mode), it works fine.
But if sceIoGetstat called by sceRegOpenRegistry, it failed. The params was same: ("ms0:/registry", &stat)

1. I make a kernel prx as plugin. 2. In my prx, I patched the scereg module: find the string "flash1:", change it to "ms0:". scereg will use this string to open registry file. 3. In another user mode prx, I want open registry file on ms0 using sceRegOpenRegistry, but it return fa...