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                                            Jonathan Lemon

ptp_ocp on RPi CM4 doesn't expose NMEA TTY and GNSS TTY

On 8/12/22 3:41 AM, Maciek Machnikowski ***@***.***> wrote: > The driver loads but fails to allocate interrupts when connecting the > TimeCard to the RPi CM4 2GB and 4GB modules....

ptp_ocp on RPi CM4 doesn't expose NMEA TTY and GNSS TTY

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

Time in GPZDA on the NMEA serial port is incorrect

The sysfs file utc_tai_offset should apply its correction to the NMEA master, as @thschaub mentioned. I'd suggest checking that value.