I've got three Intel CPU machines here, all running Jaunty with kernel 2.6.28-11-generic.
On the Intel(R) Core(TM)2 CPU 6400 @ 2.13GHz (Dual Core PC) I get:
find /sys/devices/system/cpu/cpu*/cpufreq
find: `/sys/devices/system/cpu/cpu*/cpufreq': No such file or directory
On the Intel(R) Atom(TM) CPU N270 @ 1.60GHz (eeeBox) I get:
find /sys/devices/system/cpu/cpu*/cpufreq
find: `/sys/devices/system/cpu/cpu*/cpufreq': No such file or directory
On the Intel(R) Core(TM)2 CPU T7200 @ 2.00GHz (Dual Core Laptop) I get:
find /sys/devices/system/cpu/cpu*/cpufreq
/sys/devices/system/cpu/cpu0/cpufreq
/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq
/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq
/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq
/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
/sys/devices/system/cpu/cpu0/cpufreq/affected_cpus
/sys/devices/system/cpu/cpu0/cpufreq/related_cpus
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
/sys/devices/system/cpu/cpu0/cpufreq/scaling_driver
... and so on, cpufreq works fine!
CPU frequency scaling only seems to be supported only on certain CPUs in jaunty.
I've got three Intel CPU machines here, all running Jaunty with kernel 2.6.28-11-generic.
On the Intel(R) Core(TM)2 CPU 6400 @ 2.13GHz (Dual Core PC) I get: system/ cpu/cpu* /cpufreq system/ cpu/cpu* /cpufreq' : No such file or directory
find /sys/devices/
find: `/sys/devices/
On the Intel(R) Atom(TM) CPU N270 @ 1.60GHz (eeeBox) I get: system/ cpu/cpu* /cpufreq system/ cpu/cpu* /cpufreq' : No such file or directory
find /sys/devices/
find: `/sys/devices/
On the Intel(R) Core(TM)2 CPU T7200 @ 2.00GHz (Dual Core Laptop) I get: system/ cpu/cpu* /cpufreq system/ cpu/cpu0/ cpufreq system/ cpu/cpu0/ cpufreq/ cpuinfo_ min_freq system/ cpu/cpu0/ cpufreq/ cpuinfo_ max_freq system/ cpu/cpu0/ cpufreq/ scaling_ min_freq system/ cpu/cpu0/ cpufreq/ scaling_ max_freq system/ cpu/cpu0/ cpufreq/ affected_ cpus system/ cpu/cpu0/ cpufreq/ related_ cpus system/ cpu/cpu0/ cpufreq/ scaling_ governor system/ cpu/cpu0/ cpufreq/ scaling_ driver
find /sys/devices/
/sys/devices/
/sys/devices/
/sys/devices/
/sys/devices/
/sys/devices/
/sys/devices/
/sys/devices/
/sys/devices/
/sys/devices/
... and so on, cpufreq works fine!
CPU frequency scaling only seems to be supported only on certain CPUs in jaunty.