| Kernel driver isl29003 | |
| ===================== | |
| Supported chips: | |
| * Intersil ISL29003 | |
| Prefix: 'isl29003' | |
| Addresses scanned: none | |
| Datasheet: | |
| http://www.intersil.com/data/fn/fn7464.pdf | |
| Author: Daniel Mack <daniel@caiaq.de> | |
| Description | |
| ----------- | |
| The ISL29003 is an integrated light sensor with a 16-bit integrating type | |
| ADC, I2C user programmable lux range select for optimized counts/lux, and | |
| I2C multi-function control and monitoring capabilities. The internal ADC | |
| provides 16-bit resolution while rejecting 50Hz and 60Hz flicker caused by | |
| artificial light sources. | |
| The driver allows to set the lux range, the bit resolution, the operational | |
| mode (see below) and the power state of device and can read the current lux | |
| value, of course. | |
| Detection | |
| --------- | |
| The ISL29003 does not have an ID register which could be used to identify | |
| it, so the detection routine will just try to read from the configured I2C | |
| addess and consider the device to be present as soon as it ACKs the | |
| transfer. | |
| Sysfs entries | |
| ------------- | |
| range: | |
| 0: 0 lux to 1000 lux (default) | |
| 1: 0 lux to 4000 lux | |
| 2: 0 lux to 16,000 lux | |
| 3: 0 lux to 64,000 lux | |
| resolution: | |
| 0: 2^16 cycles (default) | |
| 1: 2^12 cycles | |
| 2: 2^8 cycles | |
| 3: 2^4 cycles | |
| mode: | |
| 0: diode1's current (unsigned 16bit) (default) | |
| 1: diode1's current (unsigned 16bit) | |
| 2: difference between diodes (l1 - l2, signed 15bit) | |
| power_state: | |
| 0: device is disabled (default) | |
| 1: device is enabled | |
| lux (read only): | |
| returns the value from the last sensor reading | |