projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 9005b650 MH |
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 | |
| 7f98a905 RV |
22 | frequency of the corresponding devfreq object. Same as |
| 23 | target_freq when get_cur_freq() is not implemented by | |
| 24 | devfreq driver. | |
| 25 | ||
| 26 | What: /sys/class/devfreq/.../target_freq | |
| 27 | Date: September 2012 | |
| 28 | Contact: Rajagopal Venkat <rajagopal.venkat@linaro.org> | |
| 29 | Description: | |
| 30 | The /sys/class/devfreq/.../target_freq shows the next governor | |
| 31 | predicted target frequency of the corresponding devfreq object. | |
| 9005b650 | 32 | |
| 9005b650 MH |
33 | What: /sys/class/devfreq/.../polling_interval |
| 34 | Date: September 2011 | |
| 35 | Contact: MyungJoo Ham <myungjoo.ham@samsung.com> | |
| 36 | Description: | |
| 37 | The /sys/class/devfreq/.../polling_interval shows and sets | |
| 38 | the requested polling interval of the corresponding devfreq | |
| 39 | object. The values are represented in ms. If the value is | |
| 40 | less than 1 jiffy, it is considered to be 0, which means | |
| 41 | no polling. This value is meaningless if the governor is | |
| 42 | not polling; thus. If the governor is not using | |
| 43 | devfreq-provided central polling | |
| 44 | (/sys/class/devfreq/.../central_polling is 0), this value | |
| 45 | may be useless. | |
| ce26c5bb MH |
46 | |
| 47 | What: /sys/class/devfreq/.../userspace/set_freq | |
| 48 | Date: September 2011 | |
| 49 | Contact: MyungJoo Ham <myungjoo.ham@samsung.com> | |
| 50 | Description: | |
| 51 | The /sys/class/devfreq/.../userspace/set_freq shows and | |
| 52 | sets the requested frequency for the devfreq object if | |
| 53 | userspace governor is in effect. |