Hi all, I just noticed that libsysfs 2.x has a bug (or at least a serious mis-feature) which affects libsensors. Since lm_sensors 2.10.0, libsensors relies on sysfs_get_mnt_path() to find out whether sysfs is available or not, and fallbacks to procfs to get the sensors data if it isn't. With libsysfs 1.x it worked fine, as sysfs_get_mnt_path() would fail is sysfs wasn't mounted. However, since libsysfs 2.0.0, sysfs_get_mnt_path() appears to succeed even if sysfs isn't mounted. As a consequence, a sysfs-enabled libsensors will not work on a 2.4 kernel. So there is currently no way to build libsensors so that it'll work on both 2.4 and 2.6 kernels, unless you go back to libsysfs 1.3.0. I opened a bug on sourceforge: http://sourceforge.net/tracker/index.php?func=detail&aid=1567053&group_id=44427&atid=439544 There are several quick fixes possible... Testing the string returned by "uname -r", looking for sysfs in /proc/mounts, testing if /sys/bus exists, or the other way around, testing if /proc/sys/dev/sensors exists. Or we could stop using libsysfs altogether... -- Jean Delvare
