On Thu, Nov 03, 2022 at 03:52:59AM +0000, Billy Tsai wrote: > > Can't I use a min/max RPM to let the driver know a reasonable timeout/polling period when > the driver is trying to get RPM? > Beacause that our tach controller have the falg to indicates the hardware detected the change > in the input signal. I need the proper timout to rule out slow RPMs. > If the chip measures the fan speed continuously, why would that ever be a problem, and why wait in the first place instead of just taking the most recent result ? Pretty much every other driver is doing that, so I really don't understand why that would not work here. Guenter
