> In the meantime I have tried to learn a bit about patching kernels etc. > > This is what I understand I have to do to get the lm-sensors running > with the W83627DHG chip and the Core2Duo temperature sensors: > > 1. I have to get a driver for the W83627DHG chip. This will be a > loadable module w83627ehf.ko in the directory > /lib/modules/2.6.16.21-0.25-smp/kernel/drivers/hwmon. SUSE 10.1 has such > a driver but it seems too old (a. the documentation of the corresponding > (?) w83627ehf.c file in /usr/src/linux/drivers/hwmon says nothing about > w83627dhg support; b. I cannot do 'modprobe w83627ehf': no such device). > The newer version of the w83627.c file is this: > http://lists.lm-sensors.org/pipermail/lm-sensors/attachments/20060906/b139bc4d/attachment-0001.obj > So I should rename the old w83627ehf.c file and copy the new one to > /usr/src/linux/drivers/hwmon. > Now I have to build the new kernel module. This is the step I don't > understand yet. > After that I can do 'modprobe w83627ehf' and the W83627DHG works with > lm-sensors. > > 2. Installing the coretemp driver is a bit more tricky because I have to > patch msr.c first. I think this works in principle as above: rename > /usr/src/linux/arch/i386/kernel/msr.c, copy the new msr.c to this > directory and recompile. I think in this case I have to recompile the > whole kernel because msr is no loadable module. > After that I can build the coretemp driver as a loadable module as > above: copy coretemp.c to /usr/src/linux/drivers/hwmon, building the > module, 'modprobe coretemp'. > > In the end, I should add two lines to my file /etc/init.d/boot.local: > modprobe w83627ehf > modprobe coretemp > > lm-sensors should work then. Eventually I have to correct the file > sensors.conf. > > Is this correct so far? I used a "add-coretemp-driver.patch" file I found on the internet, don't remember which site. Then from inside the /usr/src/linux directory, I ran patch -p1 < /patch/to/add-coretemp-driver.patch and ran make menuconfig, selected the Coretemp driver, and rebuilt the kernel. > How does the patching thing work? > I think I should first save my old kernel in case something goes wrong. > Is there a preferred way to do this? Basically, when you get to the stage of copying the new kernel from arch/i386/boot/bzImage to /boot, make sure you don't use the same filename as the existing kernel.... I actually like to rename my known working kernel to bzImage_failsafe and the new one as bzImage, and then have entries in grub's menu.lst for each. > > Thank you for your help. > > Best regards > Uli > > > _______________________________________________ > lm-sensors mailing list > lm-sensors at lm-sensors.org > http://lists.lm-sensors.org/mailman/listinfo/lm-sensors >
