Debian On Tosa Options

[flux]

hello

i'm setting up debian on a tosa's friend device.
i was wondering what i should modprobe in order to ifup wlan0

for the moment, i

modprobe prism2_usb

which gets me usbcore too.

but i get a :

ioctl[SIOCSIWENTODE]: No such device


i read that i should use
/sbin/usbctl on 1

but can't find this ; anyone know in which package i could find it, or the program that replace it ?
thx a lot
flux