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Basic and Advanced fan modes
MsiFanControl project is a replacement app for "WMI1" devices, which allows setting Fan into Auto, Basic and Advanced mode with fan curve. This app is made for Windows and utilizes ACPI-WMI subsystem to Read/Write data to EC.
Fan mode switching is handled by System[9] register, which corresponds to 0xF4 EC address (according to mapping from DSDT tables). Values used by this project are slightly different, but control bits are similar to our.
For Basic fan mode, it sets System[10] register, which corresponds to 0xF5 EC address. Input data should be in range [-15;15] which is turned to value where: ((value < 0) << 7) | ((value < 0) ? -value : value)
WMI1 to EC map
@honjow Hi! Today I found you making fan curve hwmon support. Which hwmon entries you use for curve?
@honjow Hi! Today I found you making fan curve hwmon support. Which hwmon entries you use for curve?
Yes, sorry I just saw the message. First, I re-applied #143 as a base based on the latest version. The standard hwmon entries used are fan1_input, fan1_label, pwm1_enable, etc. However, the standard hwmon entries currently do not have direct support for fan curves, so I referred to the implementation methods of some other devices and used custom entries like pwm1_auto_pointX_pwm, pwm1_auto_pointX_temp.
@honjow Looks nice.
Have you seen this module? https://github.com/torvalds/linux/blob/master/drivers/platform/x86/msi-wmi-platform.c
It uses WMI-ACPI interface to access EC. MSI call it WMI2. After them, we call older layout as WMI1 (on screenshot above).
From what can you see here:
- Temperature — is current temperature and temp curve
- Fan — is fan curve, realtime % RPM and RPM
- Thermal — seems to be
pwm[1-*]_auto_point[1-*]_temp_hyst
I think msi-wmi-platform is a better base for Claws, Gaming series and newer devices.
You can find more info in #98
@honjow Looks nice.
Have you seen this module? https://github.com/torvalds/linux/blob/master/drivers/platform/x86/msi-wmi-platform.c
It uses WMI-ACPI interface to access EC. MSI call it WMI2. After them, we call older layout as WMI1 (on screenshot above).
From what can you see here:
- Temperature — is current temperature and temp curve
- Fan — is fan curve, realtime % RPM and RPM
- Thermal — seems to be
pwm[1-*]_auto_point[1-*]_temp_hystI think
msi-wmi-platformis a better base for Claws, Gaming series and newer devices.You can find more info in #98
It does look better. I did see it while browsing the kernel source code. But there is limited information available, and I am not familiar with WMI. So in the end, what I found was msi-ec.