55 lines
1.5 KiB
ReStructuredText
55 lines
1.5 KiB
ReStructuredText
Kernel driver nct7802
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=====================
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Supported chips:
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* Nuvoton NCT7802Y
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Prefix: 'nct7802'
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Addresses scanned: I2C 0x28..0x2f
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Datasheet: Available from Nuvoton web site
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Authors:
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Guenter Roeck <linux@roeck-us.net>
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Description
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-----------
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This driver implements support for the Nuvoton NCT7802Y hardware monitoring
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chip. NCT7802Y supports 6 temperature sensors, 5 voltage sensors, and 3 fan
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speed sensors.
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Smart Fan™ speed control is available via pwmX_auto_point attributes.
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Sysfs Attributes
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----------------
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Sysfs attributes unique to this chip are documented below. For common
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attributes, see Documentation/hwmon/sysfs-interface.rst.
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step_up_time
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Time interval between successive duty cycle increases
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when in Smart Fan mode. Specified in milliseconds and
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rounded to intervals of 100 in the range 100-25500.
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step_down_time
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Time interval between successive duty cycle decreases
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when in Smart Fan mode. Specified in milliseconds and
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rounded to intervals of 100 in the range 100-25500.
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Tested Boards and BIOS Versions
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-------------------------------
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The driver has been reported to work with the following boards and
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BIOS versions.
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======================= ===============================================
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Board BIOS version
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======================= ===============================================
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Kontron COMe-bSC2 CHR2E934.001.GGO
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Kontron COMe-bIP2 CCR2E212
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======================= ===============================================
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