[lm-sensors] i2cset troubles

Jean Delvare khali at linux-fr.org
Fri Apr 17 09:10:00 CEST 2009

Hi Chris,

On Thu, 16 Apr 2009 18:31:35 -0400, Chris Cole wrote:
> Hey all, I found the i2c-tools and lm-sensors packages today...great 
> stuff! I had a question about using i2cset properly. I'm trying to set 
> the value of a digital potentiometer (maxim 5434L) over the i2cbus, and 
> I can tell by using i2cdump that it's setting the register value 
> properly...but I keep getting "Warning - readback failed" after i use 
> i2cset. Here's the output of what I'm trying to do:
> ccole at test:~$ sudo modprobe scx200_acb
> ccole at test:~$ sudo modprobe i2c-dev
> ccole at test:~$ sudo su -
> root at test:~# i2cdetect -l
> i2c-0    smbus         CS5536 ACB0                         SMBus adapter
> (...)

Wrong mailing list, please post to the linux-i2c list instead:

Jean Delvare

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