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
