I am looking for the 2.00 Scenand Syscalls

Mathieulh · Post by **Mathieulh** » Tue Apr 11, 2006 12:26 am

I am looking for the 2.00 (and higher fw versions if possible) Scenand Syscalls if any of you know about those please share any intel here

Thanks.

Fanjita · Post by **Fanjita** » Tue Apr 11, 2006 1:30 am

Assuming that you mean for VSH mode, is the sceNand module even loaded?

I've always been under the impression that Groepaz's list of syscalls for v2.0 is complete for VSH (certainly, I never found any holes when deconstructing it on a module-by-module basis).

For GAME mode, I forget whether it's loaded or not. If it's in the list of modules expected to be loaded by the firmware, then the eLoader will attempt to resolve the syscall based on best-guess about the correct number (we don't have any definitive dumps of fully-resolved apps that use the sceNand functions, so it's not really possible to say for sure whether the calculated numbers are correct). So, you could always try writing a simple EBOOT app that imports the functions you want, then disassembles itself - then you'd be able to see whether those functions are available in the current mode.

Of course, I'd expect that these functions would show up in UPDATER mode, but as far as I know we don't have any means to run homebrew in that environment.

ryoko_no_usagi · Post by **ryoko_no_usagi** » Tue Apr 11, 2006 2:01 am

sceNand is used by the lfat driver and I would assume the lfat driver is used to handle the "flash0", "flash1" devices, no? Something interesting to look into: patch sceNand to redirect read/writes from internal nand to ms :)

Mathieulh · Post by **Mathieulh** » Tue Apr 11, 2006 2:02 am

I don't know about GAME mode, but I successfuly used the scenand API in VSH mode on 1.50 however it doesn't work on 2.00 probably because the scenand syscalls are not implented within eloader and that you can't use nids directly in 2.00

Also I am quite sure that the scenand API works in UPDATER mode but I didn't try it tough

Mathieulh · Post by **Mathieulh** » Tue Apr 11, 2006 2:09 am

ryoko_no_usagi wrote:sceNand is used by the lfat driver and I would assume the lfat driver is used to handle the "flash0", "flash1" devices, no? Something interesting to look into: patch sceNand to redirect read/writes from internal nand to ms :)

indeed that's a good idea, it might be also interesting to look at iplupdater from the updaters

Fanjita · Post by **Fanjita** » Tue Apr 11, 2006 8:50 pm

I checked and it's not present in any of the syscall lists generated by eLoader, for any of the 3 run modes (VSH/GAME/UPDATER).

If you know the filename of the PRX that they're included in, I'll take a look to see if it's possible to calculate the syscall.

PspPet · Post by **PspPet** » Thu Apr 13, 2006 4:11 am

> am looking for the 2.00 (and higher fw versions if possible) Scenand Syscalls
Sorry, they are all 'kernel' entries/exports, so they don't have/need syscall entries [syscalls are allocated for user exports only]

module: emc_sm.prx