N900 light meter

(Software)
(Software)
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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].
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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] and [http://norayr.arnet.am/weblog/?p=1710 photographic light meter].
Solution to your Mac issues [http://www.mac-how.net Mac How]
Solution to your Mac issues [http://www.mac-how.net Mac How]

Revision as of 23:26, 13 February 2011

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 and photographic light meter.

Solution to your Mac issues Mac How

The sensor is also used to modulate the backlight in response to ambient light.