On 2013-11-08, Antonio Marcheselli <pu...@me.la> wrote: > Question related to this topic. I am told that I can enable the HPET on > the motherboard and I can tell linux to use it. > > The file I am trying to amend is > /sys/devices/system/clocksource/clocksource0/available_clocksource > > I have a I/O error when I try to save. The folder and the file have RW > permissions, any idea on why I can't amend it?
Sysfs (/sys/*) is a virtual file system provided by Linux. Sysfs exports information about devices and drivers from the kernel device model to user space, and is also used for configuration. It is similar to the sysctl mechanism found in BSD systems, but implemented as a file system instead of a separate mechanism. Sysfs documentation is available at https://www.kernel.org/doc/Documentation/filesystems/sysfs.txt /sys/devices/system/clocksource/clocksource0/available_clocksource is the Sysfs interface for listing the available clock sources. /sys/devices/system/clocksource/clocksource0/current_clocksource is the Sysfs interface for listing _or_ setting the current clock source. e.g. # cd /sys/devices/system/clocksource/clocksource0/ # ls -l total 0 -r--r--r-- 1 root root 4096 Jul 18 07:48 available_clocksource -rw-r--r-- 1 root root 4096 Nov 9 14:28 current_clocksource # cat available_clocksource tsc hpet acpi_pm # cat current_clocksource tsc # echo hpet > current_clocksource # cat current_clocksource hpet -- Steve Kostecke <koste...@ntp.org> NTP Public Services Project - http://support.ntp.org/ _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions
