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fa4dac3e1b
This adds the possibility for reading pwm values. These can not be read if the device is controlled via fan_target or a fan curve and will return an error in this case. Since an error is expected, this adds some rudimentary error handling. Changes: - add CTL_GET_FAN_PWM and use it via get_data - pwm returns -ENODATA if the device returns error 0x12 - fan_target now returns -ENODATA when the driver is started or a pwm value is set. - add ccp_get_errno to determine errno from device error. - get_data now has a parameter to determine whether to read one or two bytes of data. - update documentation - fix missing surname in MAINTAINERS Signed-off-by: Marius Zachmann <mail@mariuszachmann.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
41 lines
1.3 KiB
ReStructuredText
41 lines
1.3 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0-or-later
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Kernel driver corsair-cpro
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==========================
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Supported devices:
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* Corsair Commander Pro
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* Corsair Commander Pro (1000D)
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Author: Marius Zachmann
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Description
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-----------
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This driver implements the sysfs interface for the Corsair Commander Pro.
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The Corsair Commander Pro is a USB device with 6 fan connectors,
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4 temperature sensor connectors and 2 Corsair LED connectors.
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It can read the voltage levels on the SATA power connector.
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Usage Notes
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-----------
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Since it is a USB device, hotswapping is possible. The device is autodetected.
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Sysfs entries
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-------------
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======================= =====================================================================
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in0_input Voltage on SATA 12v
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in1_input Voltage on SATA 5v
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in2_input Voltage on SATA 3.3v
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temp[1-4]_input Temperature on connected temperature sensors
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fan[1-6]_input Connected fan rpm.
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fan[1-6]_label Shows fan type as detected by the device.
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fan[1-6]_target Sets fan speed target rpm.
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When reading, it reports the last value if it was set by the driver.
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Otherwise returns an error.
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pwm[1-6] Sets the fan speed. Values from 0-255. Can only be read if pwm
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was set directly.
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======================= =====================================================================
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