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authorJonathan Cameron <jic23@cam.ac.uk>2009-04-13 14:39:45 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-04-13 15:04:29 -0700
commit251eb40f5ccd07a905633a816fbf8f2b6b25cced (patch)
tree6e5c1579acbdfb240745e4b9b3f6e999681ce4d8 /drivers/hwmon/Kconfig
parent133bb070e94ab41d750c6f2160c8843e46f11b78 (diff)
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>
Diffstat (limited to 'drivers/hwmon/Kconfig')
-rw-r--r--drivers/hwmon/Kconfig10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 0e8a9185f67..d73f5f473e3 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -692,6 +692,16 @@ config SENSORS_PCF8591
These devices are hard to detect and rarely found on mainstream
hardware. If unsure, say N.
+config SENSORS_SHT15
+ tristate "Sensiron humidity and temperature sensors. SHT15 and compat."
+ depends on GENERIC_GPIO
+ help
+ If you say yes here you get support for the Sensiron SHT10, SHT11,
+ SHT15, SHT71, SHT75 humidity and temperature sensors.
+
+ This driver can also be built as a module. If so, the module
+ will be called sht15.
+
config SENSORS_SIS5595
tristate "Silicon Integrated Systems Corp. SiS5595"
depends on PCI