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linux-sg2042/drivers/hwmon
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Jonathan Cameron 251eb40f5c hwmon: sht15 humidity sensor driver 
Data sheet at:
http://www.sensirion.ch/en/pdf/product_information/Datasheet-humidity-sensor-SHT1x.pdf

These sensors communicate over a 2 wire bus running a device specific
protocol.  The complexity of the driver is mainly due to handling the
substantial delays between requesting a reading and the device pulling the
data line low to indicate that the data is available.  This is handled by
an interrupt that is disabled under all other conditions.

I wasn't terribly clear on the best way to handle this, so comments on
that aspect would be particularly welcome!

Interpretation of the temperature depends on knowing the supply voltage.
If configured in a board config as a regulator consumer this is obtained
from the regulator subsystem.  If not it should be provided in the
platform data.

I've placed this driver in the hwmon subsystem as it is definitely a
device that may be used for hardware monitoring and with it's relatively
slow response times (up to 120 millisecs to get a reading) a caching
strategy certainly seems to make sense!

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2009-04-13 15:04:29 -07:00
..
ams hwmon: (ams) Simplify IRQ handling routine 2008-10-17 17:51:13 +02:00
Kconfig hwmon: sht15 humidity sensor driver 2009-04-13 15:04:29 -07:00
Makefile hwmon: sht15 humidity sensor driver 2009-04-13 15:04:29 -07:00
abituguru.c Merge branch 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6 2007-10-14 12:50:19 -07:00
abituguru3.c hwmon: (abituguru3) Fix I/O error handling 2009-03-12 13:36:38 +01:00
ad7414.c hwmon: (ad7414) Make ad7414_update_device() static 2008-09-20 10:25:20 +02:00
ad7418.c hwmon: (ad7418) Convert to a new-style i2c driver 2008-07-16 19:30:08 +02:00
adcxx.c hwmon: ADC124S501 generic driver 2008-08-15 08:35:43 -07:00
adm1021.c hwmon: (adm1021) Convert to a new-style i2c driver 2008-07-16 19:30:08 +02:00
adm1025.c hwmon: (adm1025) Convert to a new-style i2c driver 2008-07-16 19:30:08 +02:00
adm1026.c hwmon: (adm1026) Prevent log spamming 2008-10-17 17:51:20 +02:00
adm1029.c hwmon: (adm1029) Use mask for fan_div value 2008-10-17 17:51:20 +02:00
adm1031.c hwmon: (adm1031) Convert to a new-style i2c driver 2008-07-16 19:30:09 +02:00
adm9240.c hwmon: (adm9240) Convert to a new-style i2c driver 2008-07-16 19:30:09 +02:00
ads7828.c hwmon: (ads7828) Convert to a new-style i2c driver 2008-07-16 19:30:10 +02:00
adt7462.c adt74{62, 70, 73}: Use DIV_ROUND_CLOSEST for rounded division 2009-01-06 15:59:18 -08:00
adt7470.c adt7470: make automatic fan control really work 2009-01-06 15:59:18 -08:00
adt7473.c adt74{62, 70, 73}: Use DIV_ROUND_CLOSEST for rounded division 2009-01-06 15:59:18 -08:00
adt7475.c hwmon: Add a driver for the ADT7475 hardware monitoring chip 2009-01-15 22:27:47 +01:00
applesmc.c hwmon: applesmc: add support for MacPro 3 temperature sensors 2009-01-29 18:04:45 -08:00
asb100.c hwmon: Don't overuse I2C_CLIENT_MODULE_PARM 2009-01-07 16:37:32 +01:00
asus_atk0110.c hwmon: Add Asus ATK0110 support 2009-04-07 15:32:59 +02:00
atxp1.c hwmon: (atxp1) Fix device detection logic 2008-09-20 10:25:19 +02:00
coretemp.c coretemp: recognize Nehalem CPUs 2008-08-15 08:35:44 -07:00
dme1737.c hwmon: Check for ACPI resource conflicts 2009-01-07 16:37:35 +01:00
ds1621.c hwmon: (ds1621) Avoid unneeded register access 2009-03-30 21:46:40 +02:00
f71805f.c hwmon: Check for ACPI resource conflicts 2009-01-07 16:37:35 +01:00
f71882fg.c hwmon: Fix ACPI resource check error handling 2009-02-17 19:59:54 +01:00
f75375s.c trivial: Update my email address 2009-03-30 15:22:04 +02:00
fscher.c hwmon: (fscher) Convert to a new-style i2c driver 2008-07-16 19:30:12 +02:00
fschmd.c hwmon: (fschmd) Add support for the FSC Hades IC 2009-03-30 21:46:45 +02:00
fscpos.c hwmon: (fscpos) Convert to a new-style i2c driver 2008-07-16 19:30:12 +02:00
g760a.c hwmon: add support for GMT G760A fan speed PWM controller 2009-04-07 08:31:03 -07:00
gl518sm.c hwmon: (gl518sm) Convert to a new-style i2c driver 2008-07-16 19:30:13 +02:00
gl520sm.c hwmon: (gl520sm) Convert to a new-style i2c driver 2008-07-16 19:30:13 +02:00
hdaps.c hwmon: (hdaps) Fix Thinkpad X41 axis inversion 2009-03-30 21:46:42 +02:00
hp_accel.c hp_accel: remove unused #include <version.h> 2009-04-13 15:04:28 -07:00
hwmon-vid.c hwmon-vid: Add support for AMD family 10h CPUs 2008-10-26 17:04:39 +01:00
hwmon.c hwmon: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-06 10:44:41 -08:00
i5k_amb.c hwmon: (i5k_amb) Load automatically on all 5000/5400 chipsets 2009-01-07 16:37:33 +01:00
ibmaem.c Fix platform drivers that crash on suspend/resume 2008-11-12 17:17:16 -08:00
ibmpex.c ibmpex: add endian annotation to extract_data() helper 2009-01-06 15:59:18 -08:00
it87.c hwmon: (it87) Properly decode -128 degrees C temperature 2009-03-12 13:36:39 +01:00
k8temp.c hwmon: (k8temp) Fix temperature reporting for (most) K8 RevG CPUs 2009-01-15 22:27:47 +01:00
lis3lv02d.c lis3: solve dependency between core and ACPI 2009-04-01 08:59:22 -07:00
lis3lv02d.h lis3: solve dependency between core and ACPI 2009-04-01 08:59:22 -07:00
lis3lv02d_spi.c lis3: SPI transport layer 2009-04-01 08:59:22 -07:00
lm63.c hwmon: (lm63) Convert to a new-style i2c driver 2008-07-16 19:30:13 +02:00
lm70.c hwmon: (lm70) Add TI TMP121 support 2009-01-07 16:37:34 +01:00
lm75.c hwmon: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-06 10:44:41 -08:00
lm75.h hwmon: Allow writing of negative trigger temperatures 2007-10-09 22:56:29 -04:00
lm77.c hwmon: (lm77) Convert to a new-style i2c driver 2008-07-16 19:30:13 +02:00
lm78.c hwmon: (lm78) Convert to a new-style i2c driver 2008-10-17 17:51:16 +02:00
lm80.c hwmon: (lm80) Convert to a new-style i2c driver 2008-07-16 19:30:14 +02:00
lm83.c hwmon: (lm83) Convert to a new-style i2c driver 2008-07-16 19:30:14 +02:00
lm85.c lm85: add VRM10 support for adt7468 chip 2009-03-10 15:55:10 -07:00
lm87.c hwmon: (lm87) Add support for configuration through platform_data 2008-10-17 17:51:12 +02:00
lm90.c hwmon: (lm90) Document support for the MAX6648/6692 chips 2009-03-12 13:36:38 +01:00
lm92.c hwmon: (lm92) Convert to a new-style i2c driver 2008-07-16 19:30:15 +02:00
lm93.c hwmon: (lm93) Convert to a new-style i2c driver 2008-07-16 19:30:15 +02:00
lm95241.c hwmon: (lm95241) Convert to new-style i2c driver 2009-04-07 15:32:59 +02:00
ltc4215.c hwmon: Add LTC4215 driver 2009-04-01 08:59:21 -07:00
ltc4245.c hwmon: Add LTC4245 driver 2009-01-07 16:37:32 +01:00
max1111.c hwmon: add max1111_read_channel() for use by sharpsl_pm 2008-09-23 22:04:32 +01:00
max1619.c hwmon: (max1619) Use inline functions instead of macros 2008-10-17 17:51:16 +02:00
max6650.c hwmon: (max6650) Convert to a new-style i2c driver 2008-07-16 19:30:16 +02:00
pc87360.c hwmon: Check for ACPI resource conflicts 2009-01-07 16:37:35 +01:00
pc87427.c hwmon: Check for ACPI resource conflicts 2009-01-07 16:37:35 +01:00
pcf8591.c Move the pcf8591 driver to hwmon 2009-03-30 21:46:43 +02:00
sht15.c hwmon: sht15 humidity sensor driver 2009-04-13 15:04:29 -07:00
sis5595.c hwmon: Check for ACPI resource conflicts 2009-01-07 16:37:35 +01:00
smsc47b397.c hwmon: Check for ACPI resource conflicts 2009-01-07 16:37:35 +01:00
smsc47m1.c hwmon: Check for ACPI resource conflicts 2009-01-07 16:37:35 +01:00
smsc47m192.c hwmon: (smsc47m192) Convert to a new-style i2c driver 2008-07-16 19:30:16 +02:00
thmc50.c hwmon: (thmc50) Add support for critical temperature limits 2008-08-06 22:41:05 +02:00
ultra45_env.c sparc: Annotate of_device_id arrays with const or __initdata. 2008-08-31 01:23:17 -07:00
via686a.c hwmon: Check for ACPI resource conflicts 2009-01-07 16:37:35 +01:00
vt1211.c hwmon: Fix ACPI resource check error handling 2009-02-17 19:59:54 +01:00
vt8231.c hwmon: Check for ACPI resource conflicts 2009-01-07 16:37:35 +01:00
w83l785ts.c hwmon: (w83l785ts) Convert to a new-style i2c driver 2008-07-16 19:30:18 +02:00
w83l786ng.c hwmon: (w83l786ng) Convert to a new-style i2c driver 2008-07-16 19:30:18 +02:00
w83627ehf.c hwmon: (w83627ehf) Only expose in6 or temp3 on the W83667HG 2009-03-30 21:46:43 +02:00
w83627hf.c hwmon: Check for ACPI resource conflicts 2009-01-07 16:37:35 +01:00
w83781d.c hwmon: Don't overuse I2C_CLIENT_MODULE_PARM 2009-01-07 16:37:32 +01:00
w83791d.c hwmon: Don't overuse I2C_CLIENT_MODULE_PARM 2009-01-07 16:37:32 +01:00
w83792d.c hwmon: Don't overuse I2C_CLIENT_MODULE_PARM 2009-01-07 16:37:32 +01:00
w83793.c hwmon: Don't overuse I2C_CLIENT_MODULE_PARM 2009-01-07 16:37:32 +01:00