I2c interface on mpc8xx

Hello to all,
 
I'm using linux 2.6.19 on mpc880. I'm trying to use the lm75 component
connected to the i2c micro interface.
I've inserted the lm75.ko module via insmod command but I haven't found
the legacy directory into the sys filesystem (/sys/devices/legacy/....).
Is it correct that I haven't found it? 
If it isn't correct, what's the reason?
 
 
Thanks in advance
 
Luca