summaryrefslogtreecommitdiffstats
path: root/Documentation/misc-devices/isl29003.rst
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /Documentation/misc-devices/isl29003.rst
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/misc-devices/isl29003.rst')
-rw-r--r--Documentation/misc-devices/isl29003.rst75
1 files changed, 75 insertions, 0 deletions
diff --git a/Documentation/misc-devices/isl29003.rst b/Documentation/misc-devices/isl29003.rst
new file mode 100644
index 000000000..0cc38aed6
--- /dev/null
+++ b/Documentation/misc-devices/isl29003.rst
@@ -0,0 +1,75 @@
+======================
+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
+address 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
+