43fbe66dc2
Add base support for Renesas HS3001 temperature and humidity sensors and its compatibles HS3002, HS3003 and HS3004. The sensor has a fix I2C address 0x44. The resolution is fixed to 14bit (ref. Missing feature). Missing feature: - Accessing non-volatile memory: Custom board has no possibility to control voltage supply of sensor. Thus, we cannot send the necessary control commands within the first 10ms after power-on. Signed-off-by: Andre Werner <andre.werner@systec-electronic.com> Link: https://lore.kernel.org/r/20230725042207.22310-2-andre.werner@systec-electronic.com [groeck: Cosmetic documentation fixup; added documentation to index; replaced probe_new with probe dropped unused variable] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
38 lines
943 B
ReStructuredText
38 lines
943 B
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0-or-later
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Kernel driver HS3001
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====================
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Supported chips:
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* Renesas HS3001, HS3002, HS3003, HS3004
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Prefix: 'hs3001'
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Addresses scanned: -
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Datasheet: https://www.renesas.com/us/en/document/dst/hs300x-datasheet?r=417401
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Author:
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- Andre Werner <andre.werner@systec-electronic.com>
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Description
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-----------
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This driver implements support for the Renesas HS3001 chips, a humidity
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and temperature family. Temperature is measured in degrees celsius, relative
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humidity is expressed as a percentage. In the sysfs interface, all values are
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scaled by 1000, i.e. the value for 31.5 degrees celsius is 31500.
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The device communicates with the I2C protocol. Sensors have the I2C
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address 0x44 by default.
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sysfs-Interface
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---------------
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=================== =================
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temp1_input: temperature input
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humidity1_input: humidity input
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=================== =================
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