appreciate your help. the i2c bus driver of my system is sc1200 from AMD, there is i2c bus driver scx200_i2c, I just wonder whether this driver supports two buses, currently it only talks to one bus on my system. I dont know how I can make it to talk to the second bus. regards howard -----Original Message----- From: Rudolf Marek [mailto:r.marek at sh.cvut.cz] Sent: Fri 11/4/2005 5:55 PM To: Howard Wang Cc: lm-sensors at lm-sensors.org Subject: Re: i2c -dev and i2c bus driver > Yes, all you need to register it to the subsystem. (They can share common functions). Please have a look to i2c-nvidia.c > If you have more questions, just write. I mean i2c-nforce2.c Sorry, Rudolf