> I have tested this way of change cpufreq (/sys/devices/system/cpu/cpu[x]/cpufreq/scaling_setspeed),and it works. > By the way, there are only three available frequencies(1.1G 800M 600M),and CPU only enter ilde mode. However,I hope cpu can step into Deeper sleep(C4) even Deep Power Down(C6). > so how can I enable this feature? Cpufreq is meaning pstate, Cx means cstate. Which cstate will be entered is the responsibility of cpu idle state driver of OS, you don't need to do it "by manual".
Why do you want to adjust it 'by manual'? -----Original Message----- From: dev-boun...@moblin.org [mailto:dev-boun...@moblin.org] On Behalf Of 刘应杰 Sent: Wednesday, September 16, 2009 11:09 AM To: Wang, Jing J Cc: dev Subject: [Moblin Dev] low power state of atom Hi I have tested this way of change cpufreq (/sys/devices/system/cpu/cpu[x]/cpufreq/scaling_setspeed),and it works. By the way, there are only three available frequencies(1.1G 800M 600M),and CPU only enter ilde mode. However,I hope cpu can step into Deeper sleep(C4) even Deep Power Down(C6). so how can I enable this feature? Yours:lori _______________________________________________ Moblin dev Mailing List dev@moblin.org To manage or unsubscribe from this mailing list visit: http://lists.moblin.org/listinfo/dev or your user account on http://moblin.org once logged in. For more information on the Moblin Developer Mailing lists visit: http://moblin.org/community/mailing-lists _______________________________________________ Moblin dev Mailing List dev@moblin.org To manage or unsubscribe from this mailing list visit: http://lists.moblin.org/listinfo/dev or your user account on http://moblin.org once logged in. For more information on the Moblin Developer Mailing lists visit: http://moblin.org/community/mailing-lists
