[lm-sensors] dme1737 0-002e: Write to register 0x30 failed!

[Juergen Bausa]

Jean, Juerg,


> -----Ursprüngliche Nachricht-----
> Von: "Juerg Haefliger" <juergh at gmail.com>
> Gesendet: 09.10.07 18:08:33
> An: "Jean Delvare" <khali at linux-fr.org>
> CC: lm-sensors at lm-sensors.org
> Betreff: Re: [lm-sensors] dme1737 0-002e: Write to register 0x30 failed!


> > >
> > > not much information:
> > > /var/log/messages.0:Oct  4 00:17:43 lisa kernel: dme1737 0-002e: Write to register 0x30 failed (-1)! Please report to the driver maintainer.
> >
> > As I expected...
> >
> > > i2c_nforce2             7232  0
> 
> Yes, I looked at the driver and it indeed only returns -1 on error.
> 
> > Juerg, you could patch i2c-nforce2 to return more useful error codes.
> > Such a patch could go upstream. Alternatively, building the i2c-nforce2
> > driver with CONFIG_I2C_DEBUG_BUS=y may provide some hints.
> 
> I was thinking of doing that. First I have to try to recreate the
> problem on my machine.
> 
> Juergen: Do you feel like recompiling i2c_nforce2 with debugging enabled?
> 

Here is what I found in /var/log:

/var/log/messages:Oct 17 09:16:00 lisa kernel: i2c_adapter i2c-0: nForce2 SMBus adapter at 0x4c00
/var/log/messages:Oct 17 09:16:00 lisa kernel: i2c_adapter i2c-1: nForce2 SMBus adapter at 0x4c40
/var/log/messages:Oct 17 09:16:00 lisa kernel: i2c_adapter i2c-0: Found a DME1737 chip at 0x2e (rev 0x8a)

/var/log/debug:Oct 17 09:16:00 lisa kernel: i2c_adapter i2c-0: SMBus Timeout! (0x10)
/var/log/debug:Oct 17 09:16:00 lisa kernel: i2c_adapter i2c-0: SMBus Timeout! (0x10)
/var/log/debug:Oct 17 09:16:00 lisa kernel: i2c_adapter i2c-1: SMBus Timeout! (0x10)
/var/log/debug:Oct 17 19:35:30 lisa kernel: i2c_adapter i2c-0: SMBus Timeout! (0x1a)

/var/log/messages:Oct 17 09:16:00 lisa kernel: dme1737 0-002e: Optional features: pwm3=yes, pwm5=no, pwm6=no, fan3=no, fan4=yes, fan5=no, fan6=no.
/var/log/messages:Oct 17 19:35:30 lisa kernel: dme1737 0-002e: Write to register 0x30 failed (-1)! Please report to the driver maintainer.

Juergen
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