On Wed, Dec 17, 2014 at 06:09:47PM +0100, haarp wrote: > Hello, > > IBM Trackpoints have a feature to compensate for drift by > recalibrating themselves periodically. If for 0.5 seconds > there is no change in position, it uses this as the new zero. > > This happens often when the trackpoint is in fact being used. > This is frustrating. > > Raising the time solves the problem. > IBM's Trackpoint Engineering Specifications offer a > configuration register for this (rstdft1). It just needs to > be exposed by the driver, as others already are. > > Cheers! > -Mike > > > IBM Trackpoints have a feature to compensate for drift by recalibrating > themselves periodically. By default, if for 0.5 seconds there is no change in > position, it's used as the new zero. This duration is too low. Often, the > calibration happens when the trackpoint is in fact being used. > > IBM's Trackpoint Engineering Specifications show a configuration register that > allows changing this duration, rstdft1. > > Expose it via sysfs among the other settings. > > Signed-off-by: Mike Murdoch <main.haarp@xxxxxxxxx> Applied, thank you. -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html