| What: /sys/class/devfreq/.../ |
| Date: September 2011 |
| Contact: MyungJoo Ham <myungjoo.ham@samsung.com> |
| Description: |
| Provide a place in sysfs for the devfreq objects. |
| This allows accessing various devfreq specific variables. |
| The name of devfreq object denoted as ... is same as the |
| name of device using devfreq. |
| |
| What: /sys/class/devfreq/.../governor |
| Date: September 2011 |
| Contact: MyungJoo Ham <myungjoo.ham@samsung.com> |
| Description: |
| The /sys/class/devfreq/.../governor shows the name of the |
| governor used by the corresponding devfreq object. |
| |
| What: /sys/class/devfreq/.../cur_freq |
| Date: September 2011 |
| Contact: MyungJoo Ham <myungjoo.ham@samsung.com> |
| Description: |
| The /sys/class/devfreq/.../cur_freq shows the current |
| frequency of the corresponding devfreq object. |
| |
| What: /sys/class/devfreq/.../central_polling |
| Date: September 2011 |
| Contact: MyungJoo Ham <myungjoo.ham@samsung.com> |
| Description: |
| The /sys/class/devfreq/.../central_polling shows whether |
| the devfreq ojbect is using devfreq-provided central |
| polling mechanism or not. |
| |
| What: /sys/class/devfreq/.../polling_interval |
| Date: September 2011 |
| Contact: MyungJoo Ham <myungjoo.ham@samsung.com> |
| Description: |
| The /sys/class/devfreq/.../polling_interval shows and sets |
| the requested polling interval of the corresponding devfreq |
| object. The values are represented in ms. If the value is |
| less than 1 jiffy, it is considered to be 0, which means |
| no polling. This value is meaningless if the governor is |
| not polling; thus. If the governor is not using |
| devfreq-provided central polling |
| (/sys/class/devfreq/.../central_polling is 0), this value |
| may be useless. |
| |
| What: /sys/class/devfreq/.../userspace/set_freq |
| Date: September 2011 |
| Contact: MyungJoo Ham <myungjoo.ham@samsung.com> |
| Description: |
| The /sys/class/devfreq/.../userspace/set_freq shows and |
| sets the requested frequency for the devfreq object if |
| userspace governor is in effect. |