Maciek Machnikowski

Hmmm - RPi team claims it supports up to 32 vectors.  Although the problem seems to be present in different devices too. https://forums.raspberrypi.com/viewtopic.php?t=322859

> On Aug 17, 2022, at 2:42 AM, Maciek Machnikowski ***@***.***> wrote:  Hmmm - RPi team claims it supports up to 32 vectors. Although the problem seems to be...

Just note that the difference between the two messages is at -75 seconds, which is more than 2x the current UTC vs. TAI difference. Most likely, the correction is done...

Unfortunately, writing to that file has no effect: https://asciinema.org/a/RbQNaJarzDvWflWP3RoE0TDG1 Also, it does not accept negative corrections (which makes sense but prevents testing a workaround). I'll try to hack the code...

@thschaub, unfortunately, it's not fixable in the software. The NMEA offset is already set correctly at the ptp_ocp_utc_distribute() function at the driver initialization, but it seems the IP block applies...

Hey! Can you share more details about how you got it running? I tried to get it on the 1GB CM4 module. Recompiled the latest stable 5.15.56-v8+ and the 5.19...

Update: It partially works with the 2 GB CM4 module but doesn't at all with 1 GB. On CM4 it's limited (for some reason) to a single interrupt. Hence the...

Start with `sudo rpi-update` as the ptp-enabled driver is not yet in the mainstream. If that fails - paste the `ethtool -T` result.