Ambient Light Sensor
From OMAPpedia
Welcome to the Ambient light Sensor webpage.
Introduction
This webpage describes the Ambient Light sensor software development effort, mainly its current status and features planned in the road map.
ROHM BH1780GLI Ambient Light sensor supports I2C interface, and is most suitable to obtain ambient light data for adjusting LCD and keypad backlight. It supports wide range at high resolution
List of Features Supported
- On OMAP4
- Update/Read of power state i.e ON/OFF
- Read of luminance value in LUX
Design
- SYS FS Interface
- This is a generic Linux framework for device drivers and is available through /sys on the filesystem. It exports driver specific interfaces to user space.
- Ambient Light Sensor Driver
- This interfaces with BH1780GLI chip via I2C bus. I2C bus is used for accessing registers. The driver allows changing power state and read of Luminance value.
Feature Status Summary
Here is the summary of completed, ongoing and planned features in the Ambient Light sensor driver.
Ambient Light Sensor Driver
| ID | Title | Target Week | Upstream Status | Link to Patches | Priority | Owner | Dev Status | Comments & Link to Details |
| AMBIENT01 | Ambient Light sensor shall be supported through the linux sysfs interface | NA | Under External Review | https://patchwork.kernel.org/patch/101860/ | NA | Hemanth | Released in L24.7 | See details |
Defect Status Summary
Here is the summary of completed, ongoing and planned defect fixes in the Ambient Light Sensor driver.
Ambient Light Sensor Driver
| ID | Title | Target Week | Upstream Status | Link to Patches | Features Impacted | Priority | Owner | Dev Status | Comments & Link to Details |
| Nothing to Report | NA | NA | NA | NA | NA | NA | NA | NA | NA |
FAQ
TBD
Feature Status Details
SR:AMBIENT-LIGHT-SENSOR.0000
Ambient Light sensor shall be supported through the linux sysfs interface: Supported
Defect Status Details
None reported so far
Future Development Plan
None at present
Information on Testing Procedures
Submit Your Ideas Here
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Owner
Hemanth V <hemanthv@ti.com>
Contributors
Hemanth V <hemanthv@ti.com>
Patches Merged in kernel.org
None
Recent Submissions to Open Source
Current Status of Patches in Omapzoom Tree
None
