Re: [PATCH] hwmon: (aquacomputer_d5next) Set fan to direct PWM mode when writing value

[Guenter Roeck]

On 2/17/24 10:15, Aleksa Savic wrote:
> When setting a PWM value for a fan channel, ensure that the device
> is actually in direct PWM value mode, as it could be in PID, curve or
> fan following mode from previous user configurations. The byte
> signifying the channel mode is just behind the offset for the value.
> Otherwise, setting PWM speed might result in a no-op from the point
> of the user.

You can require that a device is in manual mode when setting pwm
modes, and return an error if it isn't. However, changing the mode
to manual automatically when a pwm value is written is not acceptable.

Guenter