On Thu, Dec 03, 2020 at 11:21:17AM +0100, Christian Eggers wrote: > The KSZ9563 has a Trigger Output Unit (TOU) which can be used to > generate periodic signals. > > The pulse length can be altered via a device attribute. Device tree is the wrong place for that. Aren't you using PTP_PEROUT_DUTY_CYCLE anyhow? Thanks, Richard