Hi, Something odd is happening. I've connected a garmin 18 lvc to a pc. The system has a kernel with pps support and i verified it comes in:
root@hoei:/home/folkert# cat /sys/devices/virtual/pps/pps0/{assert,clear} 1372528130.997131540#54 1372528131.097120120#54 I'm running gpsd and it says the gps has a fix and it also has all appropriate devices open: gpsd 27762 nobody 7u CHR 4,65 0t0 1144 /dev/ttyS1 gpsd 27762 nobody 9r CHR 251,0 0t0 82440 /dev/pps0 gps is started with '-n' ntpd is configurated to listen to the shared memory segments: server 127.127.28.0 minpoll 4 fudge 127.127.28.0 refid NMEA server 127.127.28.1 minpoll 4 prefer fudge 127.127.28.1 refid PPS Both nptd and gpsd look at the first 2 segments: ------ Shared Memory Segments -------- key shmid owner perms bytes nattch status 0x4e545030 0 root 600 96 2 0x4e545031 32769 root 600 96 2 0x4e545032 65538 root 666 96 1 0x4e545033 98307 root 666 96 1 0x47505344 131076 root 666 8240 1 The PPS seems to be seen by gpsd: root@hoei:/home/folkert# strace -fp 27872 2>&1 | grep ioctl ... [pid 27873] ioctl(9, PPS_FETCH, 0x7f1e63cc9d00) = 0 and the NMEA sentences are processed correctly: x127.127.28.0 .NMEA. 0 l 10 16 377 0.000 -275.55 4.421 but the pps isn't: 127.127.28.1 .PPS. 0 l - 16 0 0.000 0.000 0.000 Anyone any idea? Folkert van Heusden -- Curious about the inner workings of your car? Then check O2OO: it'll tell you all that there is to know about your car's engine! http://www.vanheusden.com/O2OO/ ---------------------------------------------------------------------- Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions