kernel/drivers/staging/iio/Documentation/sysfs-bus-iio-light

   1
   2 What:           /sys/bus/iio/devices/device[n]/range
   3 KernelVersion:  2.6.37
   4 Contact:        linux-iio@vger.kernel.org
   5 Description:
   6                 Hardware dependent ADC Full Scale Range used for some ambient
   7                 light sensors in calculating lux.
   8
   9 What:           /sys/bus/iio/devices/device[n]/range_available
  10 KernelVersion:  2.6.37
  11 Contact:        linux-iio@vger.kernel.org
  12 Description:
  13                 Hardware dependent supported vales for ADC Full Scale Range.
  14
  15 What:           /sys/bus/iio/devices/device[n]/adc_resolution
  16 KernelVersion:  2.6.37
  17 Contact:        linux-iio@vger.kernel.org
  18 Description:
  19                 Hardware dependent ADC resolution of the ambient light sensor
  20                 used in calculating the lux.
  21
  22 What:           /sys/bus/iio/devices/device[n]/adc_resolution_available
  23 KernelVersion:  2.6.37
  24 Contact:        linux-iio@vger.kernel.org
  25 Description:
  26                 Hardware dependent list of possible values supported for the
  27                 adc_resolution of the given sensor.
  28
  29 What:           /sys/bus/iio/devices/device[n]/in_illuminance0[_input|_raw]
  30 KernelVersion:  2.6.35
  31 Contact:        linux-iio@vger.kernel.org
  32 Description:
  33                 This should return the calculated lux from the light sensor. If
  34                 it comes back in SI units, it should also include _input else it
  35                 should include _raw to signify it is not in SI units.
  36
  37 What:           /sys/.../device[n]/proximity_on_chip_ambient_infrared_suppression
  38 KernelVersion:  2.6.37
  39 Contact:        linux-iio@vger.kernel.org
  40 Description:
  41                 Hardware dependent mode for an ALS device to calculate the value
  42                 in proximity mode. When this is enabled, then the device should
  43                 use a infrared sensor reading to remove infrared noise from the
  44                 proximity reading. If this is not enabled, the driver can still
  45                 do this calculation manually by reading the infrared sensor
  46                 value and doing the negation in sw.
  47
  48 What:           /sys/bus/iio/devices/device[n]/in_proximity[_input|_raw]
  49 KernelVersion:  2.6.37
  50 Contact:        linux-iio@vger.kernel.org
  51 Description:
  52                 This property is supported by proximity sensors and should be
  53                 used to return the value of a reading by the sensor. If this
  54                 value is returned in SI units, it should also include _input
  55                 but if it is not, then it should include _raw.
  56
  57 What:           /sys/bus/iio/devices/device[n]/intensity_infrared[_input|_raw]
  58 KernelVersion:  2.6.37
  59 Contact:        linux-iio@vger.kernel.org
  60 Description:
  61                 This property is supported by sensors that have an infrared
  62                 sensing mode. This value should be the output from a reading
  63                 and if expressed in SI units, should include _input. If this
  64                 value is not in SI units, then it should include _raw.
  65
  66 What:           /sys/bus/iio/devices/device[n]/in_illuminance0_target
  67 KernelVersion:  2.6.37
  68 Contact:        linux-iio@vger.kernel.org
  69 Description:
  70                 This property gets/sets the last known external
  71                 lux measurement used in/for calibration.
  72
  73 What:           /sys/bus/iio/devices/device[n]/in_illuminance0_integration_time
  74 KernelVersion:  2.6.37
  75 Contact:        linux-iio@vger.kernel.org
  76 Description:
  77                 This property gets/sets the sensors ADC analog integration time.
  78
  79 What:           /sys/bus/iio/devices/device[n]/in_illuminance0_lux_table
  80 KernelVersion:  2.6.37
  81 Contact:        linux-iio@vger.kernel.org
  82 Description:
  83                 This property gets/sets the table of coefficients
  84                 used in calculating illuminance in lux.
  85
  86 What:           /sys/bus/iio/devices/device[n]/in_intensity_clear[_input|_raw]
  87 What:           /sys/bus/iio/devices/device[n]/in_intensity_red[_input|_raw]
  88 What:           /sys/bus/iio/devices/device[n]/in_intensity_green[_input|_raw]
  89 What:           /sys/bus/iio/devices/device[n]/in_intensity_blue[_input|_raw]
  90 KernelVersion:  3.6.0
  91 Contact:        linux-iio@vger.kernel.org
  92 Description:
  93                 This property is supported by sensors that have a RGBC
  94                 sensing mode. This value should be the output from a reading
  95                 and if expressed in SI units, should include _input. If this
  96                 value is not in SI units (irradiance, uW/mm^2), then it should
  97                 include _raw.
  98
  99 What:           /sys/bus/iio/devices/device[n]/in_cct0[_input|_raw]
 100 KernelVersion:  3.6.0
 101 Contact:        linux-iio@vger.kernel.org
 102 Description:
 103                 This should return the correlated color temperature from the
 104                 light sensor. If it comes back in SI units, it should also
 105                 include _input else it should include _raw to signify it is not
 106                 in SI units.
 107