| MyungJoo Ham | 9005b65 | 2011-10-02 00:19:28 +0200 | [diff] [blame] | 1 | What: /sys/class/devfreq/.../ |
| 2 | Date: September 2011 |
| 3 | Contact: MyungJoo Ham <myungjoo.ham@samsung.com> |
| 4 | Description: |
| 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 | |
| 10 | What: /sys/class/devfreq/.../governor |
| 11 | Date: September 2011 |
| 12 | Contact: MyungJoo Ham <myungjoo.ham@samsung.com> |
| 13 | Description: |
| 14 | The /sys/class/devfreq/.../governor shows the name of the |
| 15 | governor used by the corresponding devfreq object. |
| 16 | |
| 17 | What: /sys/class/devfreq/.../cur_freq |
| 18 | Date: September 2011 |
| 19 | Contact: MyungJoo Ham <myungjoo.ham@samsung.com> |
| 20 | Description: |
| 21 | The /sys/class/devfreq/.../cur_freq shows the current |
| 22 | frequency of the corresponding devfreq object. |
| 23 | |
| 24 | What: /sys/class/devfreq/.../central_polling |
| 25 | Date: September 2011 |
| 26 | Contact: MyungJoo Ham <myungjoo.ham@samsung.com> |
| 27 | Description: |
| 28 | The /sys/class/devfreq/.../central_polling shows whether |
| 29 | the devfreq ojbect is using devfreq-provided central |
| 30 | polling mechanism or not. |
| 31 | |
| 32 | What: /sys/class/devfreq/.../polling_interval |
| 33 | Date: September 2011 |
| 34 | Contact: MyungJoo Ham <myungjoo.ham@samsung.com> |
| 35 | Description: |
| 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. |
| MyungJoo Ham | ce26c5b | 2011-10-02 00:19:34 +0200 | [diff] [blame] | 45 | |
| 46 | What: /sys/class/devfreq/.../userspace/set_freq |
| 47 | Date: September 2011 |
| 48 | Contact: MyungJoo Ham <myungjoo.ham@samsung.com> |
| 49 | Description: |
| 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. |