Commit 3cdbbeeb authored by Daniel Mack's avatar Daniel Mack Committed by Linus Torvalds

drivers/misc/isl29003.c: driver for the ISL29003 ambient light sensor

Add a driver for Intersil's ISL29003 ambient light sensor device plus some
documentation.  Inspired by tsl2550.c, a driver for a similar device.

It is put in drivers/misc for now until the industrial I/O framework gets
Signed-off-by: default avatarDaniel Mack <>
Acked-by: default avatarJonathan Cameron <>
Cc: Jean Delvare <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent 891f7d73
Kernel driver isl29003
Supported chips:
* Intersil ISL29003
Prefix: 'isl29003'
Addresses scanned: none
Author: Daniel Mack <>
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.
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
Sysfs entries
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
0: 2^16 cycles (default)
1: 2^12 cycles
2: 2^8 cycles
3: 2^4 cycles
0: diode1's current (unsigned 16bit) (default)
1: diode1's current (unsigned 16bit)
2: difference between diodes (l1 - l2, signed 15bit)
0: device is disabled (default)
1: device is enabled
lux (read only):
returns the value from the last sensor reading
......@@ -223,6 +223,16 @@ config DELL_LAPTOP
This driver adds support for rfkill and backlight control to Dell
config ISL29003
tristate "Intersil ISL29003 ambient light sensor"
depends on I2C && SYSFS
If you say yes here you get support for the Intersil ISL29003
ambient light sensor.
This driver can also be built as a module. If so, the module
will be called isl29003.
source "drivers/misc/c2port/Kconfig"
source "drivers/misc/eeprom/Kconfig"
......@@ -18,5 +18,6 @@ obj-$(CONFIG_KGDB_TESTS) += kgdbts.o
obj-$(CONFIG_SGI_XP) += sgi-xp/
obj-$(CONFIG_SGI_GRU) += sgi-gru/
obj-$(CONFIG_HP_ILO) += hpilo.o
obj-$(CONFIG_ISL29003) += isl29003.o
obj-$(CONFIG_C2PORT) += c2port/
obj-y += eeprom/
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