ls -l /proc/sys/dev/sensors total 0 -rw-r--r-- 1 root root 0 Jun 2 10:05 chips dr-xr-xr-x 2 root root 0 Jun 2 09:49 via686a-isa-6000 ls -l /proc/sys/dev/sensors/via* total 0 -r--r--r-- 1 root root 0 Jun 2 10:06 alarms -rw-r--r-- 1 root root 0 Jun 2 10:06 fan1 -rw-r--r-- 1 root root 0 Jun 2 10:06 fan2 -rw-r--r-- 1 root root 0 Jun 2 10:06 fan_div -rw-r--r-- 1 root root 0 Jun 2 10:06 in0 -rw-r--r-- 1 root root 0 Jun 2 10:06 in1 -rw-r--r-- 1 root root 0 Jun 2 10:06 in2 -rw-r--r-- 1 root root 0 Jun 2 10:06 in3 -rw-r--r-- 1 root root 0 Jun 2 10:06 in4 -rw-r--r-- 1 root root 0 Jun 2 10:06 temp1 -rw-r--r-- 1 root root 0 Jun 2 10:06 temp2 -rw-r--r-- 1 root root 0 Jun 2 10:06 temp3 But even when I change the via686a-isa-6000 folder to have root write permissions it doesn't work. ls -l /proc/sys/dev/sensors total 0 -rw-r--r-- 1 root root 0 Jun 2 10:07 chips drwxr-xr-x 2 root root 0 Jun 2 09:49 via686a-isa-6000 So still get: sensors -s via686a-isa-6000: Can't access /proc file for writing; Run as root? I don't think the permission is staying either. Would devfs have something to do with this?