devkitPro

All is in the subjet

... uh, what about it?

I think we need a little more information before we can attempt to answer anything related about that function, if it exists at all...

What's your real question?

Yes you're right

In fact i've found this function is usb.c, but not in the .h.

So is this method valid? Can we use it?
And do we need to pass vid/pid (because w canno't know them in advance)?

If you want to be able to plug random USB devices with unknown vid/pids into your wii and have them do something useful then I'd suggest installing Wii Linux and/or learning to port usb drivers.

Basically, if you have to ask this kind of question then it's likely that you shouldn't be using the function.

In fact y wan't to automatically mount the file system when a device is inserted (like the hbc did when we put an sd).

But if i need to port usb drivers, i will find an other solution (i'm a professional developer, but usb drivers is too dificult to me...).

Thx

Use .isInserted(), that's what it's there for. See Snes9x GX for an example of usage.