linux/Documentation/misc-devices/isl29003
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   1Kernel driver isl29003
   2=====================
   3
   4Supported chips:
   5* Intersil ISL29003
   6Prefix: 'isl29003'
   7Addresses scanned: none
   8Datasheet:
   9http://www.intersil.com/data/fn/fn7464.pdf
  10
  11Author: Daniel Mack <daniel@caiaq.de>
  12
  13
  14Description
  15-----------
  16The ISL29003 is an integrated light sensor with a 16-bit integrating type
  17ADC, I2C user programmable lux range select for optimized counts/lux, and
  18I2C multi-function control and monitoring capabilities. The internal ADC
  19provides 16-bit resolution while rejecting 50Hz and 60Hz flicker caused by
  20artificial light sources.
  21
  22The driver allows to set the lux range, the bit resolution, the operational
  23mode (see below) and the power state of device and can read the current lux
  24value, of course.
  25
  26
  27Detection
  28---------
  29
  30The ISL29003 does not have an ID register which could be used to identify
  31it, so the detection routine will just try to read from the configured I2C
  32addess and consider the device to be present as soon as it ACKs the
  33transfer.
  34
  35
  36Sysfs entries
  37-------------
  38
  39range:
  40        0: 0 lux to 1000 lux (default)
  41        1: 0 lux to 4000 lux
  42        2: 0 lux to 16,000 lux
  43        3: 0 lux to 64,000 lux
  44
  45resolution:
  46        0: 2^16 cycles (default)
  47        1: 2^12 cycles
  48        2: 2^8 cycles
  49        3: 2^4 cycles
  50
  51mode:
  52        0: diode1's current (unsigned 16bit) (default)
  53        1: diode1's current (unsigned 16bit)
  54        2: difference between diodes (l1 - l2, signed 15bit)
  55
  56power_state:
  57        0: device is disabled (default)
  58        1: device is enabled
  59
  60lux (read only):
  61        returns the value from the last sensor reading
  62
  63
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