On Mon, 26 Jan 2009 15:57:10 +0100, Jean Delvare wrote: > On Mon, 26 Jan 2009 22:47:36 +1300, Volker Kuhlmann wrote: > > On Mon 26 Jan 2009 02:47:24 NZDT +1300, Jean Delvare wrote: > > > I'm not sure why you think my approach wouldn't work. Let's take the > > > case of your board: the k8temp driver loads automatically, the it87 > > > driver doesn't. > > > > > > At first run, sensors-detect would stop the lm_sensors service (no > > > effect as the service wasn't configured yet.) It would detect k8temp and > > > it87, but seeing that k8temp is already loaded, would only list it87 > > > in /etc/sysconfig/lm_sensors. > > > > > > At this point, starting the lm_sensors service only loads it87, because > > > k8temp is already loaded. Likewise, stopping or restarting the > > > lm_sensors service only unloads the it87 driver. > > > > > > This means that a further run of sensors-detect will only unload the > > > it87 driver. Then it will see that k8temp is loaded and again will not > > > list it in /etc/sysconfig/lm_sensors. > > > > Ah yes, put it like that, it should work. It would be very sensitive to > > run-status being the same as boot-status though. Is this robust enough? > > I agree it is a little fragile. It should work in the general case if > the user doesn't edit the configuration file manually and doesn't load > or unload hwmon drivers on its own. My hope is that users who start > loading or unloading drivers or editing configuration files will know > how to fix things if they break. But maybe that's too optimistic. I have discussed this a bit with Kay Sievers yesterday. He suggested that we can use the modalias files in sysfs together with "modprobe -n" to find out whether a loaded hwmon driver has been auto-loaded or not. This would let us exclude kernel modules from /etc/sysconfig/lm_sensors based on whether they auto-load rather than based on whether they were loaded when sensors-detect was run. This should be way more robust than my initial proposal, to a point where I think it would make sense to give it a try. -- Jean Delvare
