N900 light meter: Difference between revisions
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The light meter lets the software on the | The light meter lets the software on the [[Nokia N900|N900]] sense ambient light levels. | ||
=Hardware= | |||
==Hardware== | |||
The device is a TAOS [http://www.taosinc.com/downloaddetail.aspx?did=141 TSL2563]. | The device is a TAOS [http://www.taosinc.com/downloaddetail.aspx?did=141 TSL2563]. | ||
=Software= | ==Software== | ||
It is handled by the kernel module tsl2563. | It is handled by the kernel module tsl2563. | ||
The kernel driver exposes the lux value in the sysfs file | The kernel driver exposes the [[:wikipedia:lux|lux]] value in the sysfs file | ||
cat /sys/class/i2c-adapter/i2c-2/2-0029/lux | cat /sys/class/i2c-adapter/i2c-2/2-0029/lux | ||
21 | 21 | ||
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The sensor is also used to modulate the backlight in response to ambient light. | The sensor is also used to modulate the backlight in response to ambient light. | ||
[[Category:N900 Hardware]] | |||
Revision as of 10:26, 9 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.
