1What: /sys/class/devfreq/.../ 2Date: September 2011 3Contact: MyungJoo Ham <myungjoo.ham@samsung.com> 4Description: 5 Provide a place in sysfs for the devfreq objects. 6 This allows accessing various devfreq specific variables. 7 The name of devfreq object denoted as ... is same as the 8 name of device using devfreq. 9 10What: /sys/class/devfreq/.../governor 11Date: September 2011 12Contact: MyungJoo Ham <myungjoo.ham@samsung.com> 13Description: 14 The /sys/class/devfreq/.../governor shows the name of the 15 governor used by the corresponding devfreq object. 16 17What: /sys/class/devfreq/.../cur_freq 18Date: September 2011 19Contact: MyungJoo Ham <myungjoo.ham@samsung.com> 20Description: 21 The /sys/class/devfreq/.../cur_freq shows the current 22 frequency of the corresponding devfreq object. 23 24What: /sys/class/devfreq/.../central_polling 25Date: September 2011 26Contact: MyungJoo Ham <myungjoo.ham@samsung.com> 27Description: 28 The /sys/class/devfreq/.../central_polling shows whether 29 the devfreq ojbect is using devfreq-provided central 30 polling mechanism or not. 31 32What: /sys/class/devfreq/.../polling_interval 33Date: September 2011 34Contact: MyungJoo Ham <myungjoo.ham@samsung.com> 35Description: 36 The /sys/class/devfreq/.../polling_interval shows and sets 37 the requested polling interval of the corresponding devfreq 38 object. The values are represented in ms. If the value is 39 less than 1 jiffy, it is considered to be 0, which means 40 no polling. This value is meaningless if the governor is 41 not polling; thus. If the governor is not using 42 devfreq-provided central polling 43 (/sys/class/devfreq/.../central_polling is 0), this value 44 may be useless. 45 46What: /sys/class/devfreq/.../userspace/set_freq 47Date: September 2011 48Contact: MyungJoo Ham <myungjoo.ham@samsung.com> 49Description: 50 The /sys/class/devfreq/.../userspace/set_freq shows and 51 sets the requested frequency for the devfreq object if 52 userspace governor is in effect. 53