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| author | Guenter Roeck <linux@roeck-us.net> | 2015-11-07 15:54:33 -0800 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2015-12-18 08:20:59 -0800 |
| commit | 2ff44072e34d5b6567d3d59b507e54c73b084db7 (patch) | |
| tree | d692e98fea86b882352ce8ba8b75e160beb0e139 /Documentation/hwmon | |
| parent | a3a316cfc41ab3e7b9e0079338f8ea9dff911d88 (diff) | |
| download | linux-2ff44072e34d5b6567d3d59b507e54c73b084db7.tar.gz linux-2ff44072e34d5b6567d3d59b507e54c73b084db7.tar.bz2 linux-2ff44072e34d5b6567d3d59b507e54c73b084db7.zip | |
hwmon: (htu21) Remove driver
HTU21 is now supported by IIO, and can be instantiated as hwmon driver
using the iio-hwmon bridge. An explicit hwmon driver is no longer needed.
Cc: William Markezana <william.markezana@meas-spec.com>
Cc: Ludovic Tancerel <ludovic.tancerel@maplehightech.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon')
| -rw-r--r-- | Documentation/hwmon/htu21 | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/Documentation/hwmon/htu21 b/Documentation/hwmon/htu21 deleted file mode 100644 index f39a215fb6ae..000000000000 --- a/Documentation/hwmon/htu21 +++ /dev/null @@ -1,46 +0,0 @@ -Kernel driver htu21 -=================== - -Supported chips: - * Measurement Specialties HTU21D - Prefix: 'htu21' - Addresses scanned: none - Datasheet: Publicly available at the Measurement Specialties website - http://www.meas-spec.com/downloads/HTU21D.pdf - - -Author: - William Markezana <william.markezana@meas-spec.com> - -Description ------------ - -The HTU21D is a humidity and temperature sensor in a DFN package of -only 3 x 3 mm footprint and 0.9 mm height. - -The devices communicate with the I2C protocol. All sensors are set to the -same I2C address 0x40, so an entry with I2C_BOARD_INFO("htu21", 0x40) can -be used in the board setup code. - -This driver does not auto-detect devices. You will have to instantiate the -devices explicitly. Please see Documentation/i2c/instantiating-devices -for details. - -sysfs-Interface ---------------- - -temp1_input - temperature input -humidity1_input - humidity input - -Notes ------ - -The driver uses the default resolution settings of 12 bit for humidity and 14 -bit for temperature, which results in typical measurement times of 11 ms for -humidity and 44 ms for temperature. To keep self heating below 0.1 degree -Celsius, the device should not be active for more than 10% of the time. For -this reason, the driver performs no more than two measurements per second and -reports cached information if polled more frequently. - -Different resolutions, the on-chip heater, using the CRC checksum and reading -the serial number are not supported yet. |