On Thursday, 3 December 2020, 15:12:55 CET, Richard Cochran wrote: > 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. I meant a device specfic sysfs attribute. /sys/class/ptp/ptp2/device/pulse But this is not true anymore, as I moved the sysfs attribute to a later patch (not submitted yet). > Aren't you using PTP_PEROUT_DUTY_CYCLE anyhow? I also use PTP_PEROUT_DUTY_CYCLE. But this cannot be set via a shell script. The existing "period" sysfs attribute doesn't allow to set the pulse length, so I added a device specific attribute for this. Should ptp_sysfs be extended with a "pulse" attribute with calls enable() with only PTP_PEROUT_DUTY_CYCLE set? > > Thanks, > Richard > > regards Christian
