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