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Diffstat (limited to 'Documentation/hwmon/sht15')
| -rw-r--r-- | Documentation/hwmon/sht15 | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/Documentation/hwmon/sht15 b/Documentation/hwmon/sht15 deleted file mode 100644 index 5e3207c3b177..000000000000 --- a/Documentation/hwmon/sht15 +++ /dev/null @@ -1,73 +0,0 @@ -Kernel driver sht15 -=================== - -Authors: - * Wouter Horre - * Jonathan Cameron - * Vivien Didelot <vivien.didelot@savoirfairelinux.com> - * Jerome Oufella <jerome.oufella@savoirfairelinux.com> - -Supported chips: - * Sensirion SHT10 - Prefix: 'sht10' - - * Sensirion SHT11 - Prefix: 'sht11' - - * Sensirion SHT15 - Prefix: 'sht15' - - * Sensirion SHT71 - Prefix: 'sht71' - - * Sensirion SHT75 - Prefix: 'sht75' - -Datasheet: Publicly available at the Sensirion website -http://www.sensirion.ch/en/pdf/product_information/Datasheet-humidity-sensor-SHT1x.pdf - -Description ------------ - -The SHT10, SHT11, SHT15, SHT71, and SHT75 are humidity and temperature -sensors. - -The devices communicate using two GPIO lines. - -Supported resolutions for the measurements are 14 bits for temperature and 12 -bits for humidity, or 12 bits for temperature and 8 bits for humidity. - -The humidity calibration coefficients are programmed into an OTP memory on the -chip. These coefficients are used to internally calibrate the signals from the -sensors. Disabling the reload of those coefficients allows saving 10ms for each -measurement and decrease power consumption, while losing on precision. - -Some options may be set via sysfs attributes. - -Notes: - * The regulator supply name is set to "vcc". - * If a CRC validation fails, a soft reset command is sent, which resets - status register to its hardware default value, but the driver will try to - restore the previous device configuration. - -Platform data -------------- - -* checksum: - set it to true to enable CRC validation of the readings (default to false). -* no_otp_reload: - flag to indicate not to reload from OTP (default to false). -* low_resolution: - flag to indicate the temp/humidity resolution to use (default to false). - -Sysfs interface ---------------- - -* temp1_input: temperature input -* humidity1_input: humidity input -* heater_enable: write 1 in this attribute to enable the on-chip heater, - 0 to disable it. Be careful not to enable the heater - for too long. -* temp1_fault: if 1, this means that the voltage is low (below 2.47V) and - measurement may be invalid. -* humidity1_fault: same as temp1_fault. |