|
| From: | Gavin Davenport |
| Subject: | Help needed with USB GPS device |
| Date: | Wed, 28 Feb 2024 22:17:18 +0000 |
|
Hi I’m trying to determine why my GPS device isnt’ feeding a time source to chrony (Fedora release 38 system) Initialisation of gpsd seems to have been wrapped into system and I can see there’s a gpsd service and a gpsd.socket unit file. I don’t think I understand whether this gps is happy feeding data to chrony. Relevant fragments in chrony.conf: refclock SOCK /run/chrony.ttyS1.sock refid GPS precision 1e-1 offset 0.9999 refclock SOCK /run/chrony.pps0.sock refid PPS precision 1e-7 (I’m not sure what creates those sock files, gpsd or chronyd) Current output of chronyc -n sources suggests it can’t get anything from gpsd. [root@roundabout ~]# chronyc -n sources MS Name/IP address Stratum Poll Reach LastRx Last sample =============================================================================== #? GPS 0 4 0 - +0ns[ +0ns] +/- 0ns #? PPS 0 4 0 - +0ns[ +0ns] +/- 0ns ^* 2001:8b0:0:23::205 2 10 377 770 +420us[ +575us] +/- 28ms ^- 2001:7b8:3:2b::4 2 10 377 859 +3080us[+3236us] +/- 345ms ^- 2001:7b8:3:2b::5 2 10 377 788 +3008us[+3163us] +/- 34ms ^- 81.187.202.141 1 6 377 2 -110ms[ -110ms] +/- 1000ms ^+ 185.53.45.4 2 9 377 163 +328us[ +328us] +/- 43ms ^+ 2a00:ed40:4001::12 2 10 377 982 -845us[ -688us] +/- 32ms ^- 2001:418:3ff::53 2 10 377 970 +2653us[+2810us] +/- 90ms I found this post: https://lists.gnu.org/archive/html/gpsd-users/2017-03/msg00025.html ppstest says [root@roundabout ~]# ppstest /dev/ttyUSB0 trying PPS source "/dev/ttyUSB0" cannot create a PPS source from device "/dev/ttyUSB0" (Operation not supported) Ntpshdmon shows: [root@roundabout ~]# ntpshmmon ntpshmmon: version 3.25 # Name Seen@ Clock Real L Prc sample NTP0 1709158436.309652512 1709158435.590527351 1709158435.570000000 0 -1 sample NTP0 1709158436.591134833 1709158436.590751043 1709158436.570000000 0 -1 sample NTP0 1709158437.595814658 1709158437.595444907 1709158437.570000000 0 -1 sample NTP0 1709158438.589602935 1709158438.588788209 1709158438.570000000 0 -1 sample NTP0 1709158439.591925098 1709158439.590892930 1709158439.570000000 0 -1 sample NTP0 1709158440.592359659 1709158440.592150149 1709158440.570000000 0 -1 sample NTP0 1709158441.591534194 1709158441.591041269 1709158441.570000000 0 -1 sample NTP0 1709158442.590622931 1709158442.590542907 1709158442.570000000 0 -1 And I don’t know if that’s good or bad. I don’t understand the output of this: gpsd:INFO: launching (Version 3.25, revision 3.25) gpsd:INFO: starting uid 0, gid 0 gpsd:INFO: Command line: /usr/sbin/gpsd -N -n -D 7 /dev/ttyUSB0 gpsd:IO: opening IPv4 socket gpsd:SPIN: passivesock_af() -> 4 gpsd:IO: opening IPv6 socket gpsd:SPIN: passivesock_af() -> 5 gpsd:INFO: listening on port gpsd gpsd:PROG: NTP:SHM: shmat(0,0,0) succeeded, unit 0 gpsd:PROG: NTP:SHM: shmat(1,0,0) succeeded, unit 1 gpsd:PROG: NTP:SHM: shmat(2,0,0) succeeded, unit 2 gpsd:PROG: NTP:SHM: shmat(3,0,0) succeeded, unit 3 gpsd:PROG: NTP:SHM: shmat(4,0,0) succeeded, unit 4 gpsd:PROG: NTP:SHM: shmat(5,0,0) succeeded, unit 5 gpsd:PROG: NTP:SHM: shmat(6,0,0) succeeded, unit 6 gpsd:PROG: NTP:SHM: shmat(7,0,0) succeeded, unit 7 gpsd:PROG: NTP:SHM: shmat(8,0,0) succeeded, unit 8 gpsd:PROG: NTP:SHM: shmat(9,0,0) succeeded, unit 9 gpsd:PROG: NTP:SHM: shmat(10,0,0) succeeded, unit 10 gpsd:PROG: NTP:SHM: shmat(11,0,0) succeeded, unit 11 gpsd:PROG: successfully connected to the DBUS system bus gpsd:PROG: SHM: shmget(0x47505344, 29240, 0666) for SHM export succeeded gpsd:PROG: SHM: shmat() for SHM export succeeded, segment 12 gpsd:INFO: stashing device /dev/ttyUSB0 at slot 0 gpsd:PROG: CORE: open_device(/dev/ttyUSB0) fd -1 gpsd:PROG: CORE: gpsd_activate(/dev/ttyUSB0, 2) fd -1 gpsd:PROG: CORE: no /etc/gpsd/device-hook present, skipped running ACTIVATE hook. No such file or directory(2) gpsd:PROG: CORE: gpsd_open(/dev/ttyUSB0) fd -1 gpsd:PROG: SER: gpsd_serial_open(/dev/ttyUSB0) sourcetype 3 fd -1 gpsd:INFO: SER: opening GPS data source type 3 at '/dev/ttyUSB0' gpsd:IO: SER: fusercount: path /dev/ttyUSB0 fullpath /dev/ttyUSB0 cnt 1 gpsd:IO: SER: fd 7 set speed 9600(13) gpsd:INFO: SER: fd 7 current speed 9600, 8N1 gpsd:IO: SER: open(/dev/ttyUSB0) -> 7 in gpsd_serial_open() gpsd:PROG: CORE: Probing "Garmin USB binary" driver... gpsd:INFO: attempting USB device enumeration. gpsd:INFO: 1d6b:0003 (bus 2, device 1) gpsd:INFO: 05e3:0608 (bus 1, device 3) gpsd:INFO: 067b:2303 (bus 1, device 10) gpsd:INFO: 1d6b:0002 (bus 1, device 1) gpsd:INFO: vendor/product match with 091e:0003 not found gpsd:PROG: CORE: Probe not found "Garmin USB binary" driver... gpsd:PROG: CORE: Probing "GeoStar" driver... gpsd:PROG: Sent GeoStar packet id 0xc1 gpsd:IO: SER: => GPS: 5053474700c100010000000050924746 gpsd:PROG: CORE: Probe not found "GeoStar" driver... gpsd:PROG: CORE: Probing "Trimble TSIP" driver... gpsd:IO: SER: fd 7 set speed 9600(13) gpsd:INFO: SER: fd 7 current speed 9600, 8O1 gpsd:IO: SER: fd 7 set speed 9600(13) gpsd:INFO: SER: fd 7 current speed 9600, 8N1 gpsd:PROG: CORE: Probe not found "Trimble TSIP" driver... gpsd:PROG: CORE: Probing "iSync" driver... gpsd:INFO: SER: fd 7 current speed 9600, 8N1 gpsd:IO: SER: => GPS: @@@@ MAW0C0B gpsd:INFO: SER: fd 7 current speed 9600, 8N1 gpsd:PROG: CORE: Probe not found "iSync" driver... gpsd:PROG: CORE: no probe matched... gpsd:PROG: CORE: activate fd 7 done gpsd:PROG: NTP:SHM: ntpshm_link_activate(/dev/ttyUSB0), sourcetype 3 fd 7 gpsd:PROG: NTP:/dev/ttyUSB0 chrony socket /run/chrony.clk.ttyUSB0.sock doesn't exist gpsd:PROG: NTP:SHM: ntpshm_alloc(/dev/ttyUSB0), sourcetype 3 shm_clock using SHM(0) gpsd:PROG: NTP:SHM: ntpshm_alloc(/dev/ttyUSB0), sourcetype 3 shm_pps using SHM(1) gpsd:PROG: NTP:/dev/ttyUSB0 chrony socket /run/chrony.ttyUSB0.sock doesn't exist gpsd:PROG: KPPS:/dev/ttyUSB0 checking /sys/devices/virtual/pps/pps0/path, gpsd:PROG: KPPS:/dev/ttyUSB0 checking /sys/devices/virtual/pps/pps1/path, gpsd:PROG: KPPS:/dev/ttyUSB0 checking /sys/devices/virtual/pps/pps2/path, gpsd:PROG: KPPS:/dev/ttyUSB0 checking /sys/devices/virtual/pps/pps3/path, gpsd:PROG: KPPS:/dev/ttyUSB0 checking /sys/devices/virtual/pps/pps4/path, /dev/ttyUSB0 gpsd:INFO: KPPS:/dev/ttyUSB0 RFC2783 path:/dev/pps4, fd 8 gpsd:INFO: KPPS:/dev/ttyUSB0 pps_caps 0x1133 gpsd:INFO: KPPS:/dev/ttyUSB0 have PPS_CANWAIT gpsd:INFO: KPPS:/dev/ttyUSB0 kernel PPS will be used gpsd:PROG: PPS:/dev/ttyUSB0 thread launched gpsd:INFO: SHM: ntpshm_link_activate(/dev/ttyUSB0): NTP NTP activated 7 gpsd:INFO: KPPS:/dev/ttyUSB0 kernel PPS timeout Interrupted system call(4) gpsd:INFO: KPPS:/dev/ttyUSB0 kernel PPS timeout Interrupted system call(4) gpsd:INFO: KPPS:/dev/ttyUSB0 kernel PPS timeout Interrupted system call(4) gpsd:INFO: running with effective group ID 18 gpsd:INFO: running with effective user ID 65534 gpsd:INFO: startup at 2024-02-28T22:16:05.000Z (1709158565) gpsd:SPIN: CORE: pselect() {4 5 7} -> { 7 } at 1709158566.373726387, Success(0) gpsd:SPIN: PACKET: packet_get() fd 7 -> 1 Success(0) gpsd:DATA: gpsd_multipoll(7) = 0 gpsd:SPIN: CORE: pselect() {4 5 7} -> { 7 } at 1709158566.374926416, Success(0) gpsd:SPIN: PACKET: packet_get() fd 7 -> 1 Success(0) gpsd:DATA: gpsd_multipoll(7) = 0 gpsd:SPIN: CORE: pselect() {4 5 7} -> { 7 } at 1709158566.376149651, Success(0) gpsd:SPIN: PACKET: packet_get() fd 7 -> 1 Success(0) gpsd:IO: SER: gpsd_next_hunt_setting(7) retries 0 diff 0 gpsd:DATA: gpsd_multipoll(7) = 0 gpsd:SPIN: CORE: pselect() {4 5 7} -> { 7 } at 1709158566.378091150, Success(0) gpsd:SPIN: PACKET: packet_get() fd 7 -> 1 Success(0) (I’ve noticed the above command fails if gpsd is running) Is there an idiots guide of building the relevant components up that I can follow ? |
| [Prev in Thread] | Current Thread | [Next in Thread] |