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Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-backlight-driver-adp8870 | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-backlight-driver-adp8870 b/Documentation/ABI/testing/sysfs-class-backlight-driver-adp8870 new file mode 100644 index 000000000000..aa11dbdd794b --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-backlight-driver-adp8870 | |||
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| 1 | What: /sys/class/backlight/<backlight>/<ambient light zone>_max | ||
| 2 | What: /sys/class/backlight/<backlight>/l1_daylight_max | ||
| 3 | What: /sys/class/backlight/<backlight>/l2_bright_max | ||
| 4 | What: /sys/class/backlight/<backlight>/l3_office_max | ||
| 5 | What: /sys/class/backlight/<backlight>/l4_indoor_max | ||
| 6 | What: /sys/class/backlight/<backlight>/l5_dark_max | ||
| 7 | Date: Mai 2011 | ||
| 8 | KernelVersion: 2.6.40 | ||
| 9 | Contact: device-drivers-devel@blackfin.uclinux.org | ||
| 10 | Description: | ||
| 11 | Control the maximum brightness for <ambient light zone> | ||
| 12 | on this <backlight>. Values are between 0 and 127. This file | ||
| 13 | will also show the brightness level stored for this | ||
| 14 | <ambient light zone>. | ||
| 15 | |||
| 16 | What: /sys/class/backlight/<backlight>/<ambient light zone>_dim | ||
| 17 | What: /sys/class/backlight/<backlight>/l2_bright_dim | ||
| 18 | What: /sys/class/backlight/<backlight>/l3_office_dim | ||
| 19 | What: /sys/class/backlight/<backlight>/l4_indoor_dim | ||
| 20 | What: /sys/class/backlight/<backlight>/l5_dark_dim | ||
| 21 | Date: Mai 2011 | ||
| 22 | KernelVersion: 2.6.40 | ||
| 23 | Contact: device-drivers-devel@blackfin.uclinux.org | ||
| 24 | Description: | ||
| 25 | Control the dim brightness for <ambient light zone> | ||
| 26 | on this <backlight>. Values are between 0 and 127, typically | ||
| 27 | set to 0. Full off when the backlight is disabled. | ||
| 28 | This file will also show the dim brightness level stored for | ||
| 29 | this <ambient light zone>. | ||
| 30 | |||
| 31 | What: /sys/class/backlight/<backlight>/ambient_light_level | ||
| 32 | Date: Mai 2011 | ||
| 33 | KernelVersion: 2.6.40 | ||
| 34 | Contact: device-drivers-devel@blackfin.uclinux.org | ||
| 35 | Description: | ||
| 36 | Get conversion value of the light sensor. | ||
| 37 | This value is updated every 80 ms (when the light sensor | ||
| 38 | is enabled). Returns integer between 0 (dark) and | ||
| 39 | 8000 (max ambient brightness) | ||
| 40 | |||
| 41 | What: /sys/class/backlight/<backlight>/ambient_light_zone | ||
| 42 | Date: Mai 2011 | ||
| 43 | KernelVersion: 2.6.40 | ||
| 44 | Contact: device-drivers-devel@blackfin.uclinux.org | ||
| 45 | Description: | ||
| 46 | Get/Set current ambient light zone. Reading returns | ||
| 47 | integer between 1..5 (1 = daylight, 2 = bright, ..., 5 = dark). | ||
| 48 | Writing a value between 1..5 forces the backlight controller | ||
| 49 | to enter the corresponding ambient light zone. | ||
| 50 | Writing 0 returns to normal/automatic ambient light level | ||
| 51 | operation. The ambient light sensing feature on these devices | ||
| 52 | is an extension to the API documented in | ||
| 53 | Documentation/ABI/stable/sysfs-class-backlight. | ||
| 54 | It can be enabled by writing the value stored in | ||
| 55 | /sys/class/backlight/<backlight>/max_brightness to | ||
| 56 | /sys/class/backlight/<backlight>/brightness. \ No newline at end of file | ||