Hi Wolfram, > I tested on this hardware > > MPC8260 (powerpc) + PCF8575 (io expander) + LM84 (sensor) > + RS5C372 (rtc) + X24645 (eeprom) It's also OK on dbox2 hardware: MPC823 (powerpc) + saa7127 (patch needed to add id_table) + dbox frontprocessor (8051 controller with i2c interface). Thanks, Jochen