N900 light meter
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cat /sys/class/i2c-adapter/i2c-2/2-0029/lux | cat /sys/class/i2c-adapter/i2c-2/2-0029/lux | ||
21 | 21 | ||
| + | |||
| + | Third party applications that use this sensor include [http://www.tuug.fi/~toni/serendipity/index.php?/archives/14-Luxus-Light-Meter-v0.2-for-N900,-as-a-real-homescreen-widget.html Luxus Light Meter]. | ||
| + | |||
| + | The sensor is also used to modulate the backlight in response to ambient light. | ||
Revision as of 23:36, 7 June 2010
The light meter lets the software on the n900 sense ambient light levels.
Hardware
The device is a TAOS TSL2563.
Software
It is handled by the kernel module tsl2563.
The kernel driver exposes the lux value in the sysfs file
cat /sys/class/i2c-adapter/i2c-2/2-0029/lux 21
Third party applications that use this sensor include Luxus Light Meter.
The sensor is also used to modulate the backlight in response to ambient light.