What about:
pi@DietPi:~ $ sudo fuser -v /dev/ttyUSB0
USER PID ACCESS COMMAND
/dev/tty/USB0:
pi 400 F.... weewxd
In any case, maybe weewx is running more than once?
Try stopping it and then:
$ ps -ef | grep weewx
And see if there is another weewxd process still running and kill it (simple
kill {pid} first, then kill -9 {pid} if it doesn't go away on the simple kill).
Regards,
\Leon
--
Leon Shaner :: Dearborn, Michigan (iPad)
> On Aug 28, 2019, at 9:35 AM, steeple ian <[email protected]> wrote:
>
>
> lsof /dev/ttyUSB0 shows nothing at all.
>
>> On Wednesday, August 28, 2019 at 1:51:27 PM UTC+1, Tom Keffer wrote:
>> I doubt this has anything to do with V4, but I could be wrong. Check to see
>> which process has the port open:
>>
>> lsof /dev/ttyUSB0
>>
>> I'm betting there's another process holding on to the port.
>>
>> -tk
>>
>>> On Wed, Aug 28, 2019 at 4:19 AM steeple ian <[email protected]> wrote:
>>> Tom,
>>>
>>> I am testing WeeWX 4.0.0.a7 with the SDS011 driver.
>>>
>>> I am getting the following error: -
>>>
>>> weewx.service - LSB: weewx weather system
>>> Loaded: loaded (/etc/init.d/weewx; generated)
>>> Active: active (exited) since Wed 2019-08-28 12:07:31 BST; 5s ago
>>> Docs: man:systemd-sysv-generator(8)
>>> Process: 1449 ExecStart=/etc/init.d/weewx start (code=exited,
>>> status=0/SUCCESS)
>>>
>>> Aug 28 12:07:31 DietPi weewxd[1463]: weewx[1463]/DEBUG weewx.engine: Debug
>>> is 1
>>> Aug 28 12:07:31 DietPi weewxd[1463]: weewx[1463]/DEBUG weewx.engine:
>>> Initializing engine
>>> Aug 28 12:07:31 DietPi weewxd[1463]: weewx[1463]/INFO weewx.engine: Loading
>>> station type SDS011 (user.sds011)
>>> Aug 28 12:07:31 DietPi weewxd[1463]: SDS011: driver version is 0.2
>>> Aug 28 12:07:31 DietPi weewxd[1463]: SDS011: model is NovaPM
>>> Aug 28 12:07:31 DietPi weewxd[1463]: SDS011: port is /dev/ttyUSB0
>>> Aug 28 12:07:31 DietPi weewxd[1463]: SDS011: poll interval is 10
>>> Aug 28 12:07:31 DietPi weewxd[1463]: weewx[1463]/ERROR weewx.engine: Import
>>> of driver failed: Port is already open. (<class
>>> 'serial.serialutil.SerialException'>)
>>> Aug 28 12:07:31 DietPi weewxd[1463]: weewx[1463]/CRITICAL weewx.engine:
>>> Unable to load driver: Port is already open.
>>> Aug 28 12:07:31 DietPi weewxd[1463]: weewx[1463]/CRITICAL weewx.engine:
>>> **** Exiting...
>>>
>>> RaspberryPi 3, running DietPi Buster (Debian 10).
>>>
>>> Nothing else connected to the USB ports.
>>>
>>> The driver works fine with 3.9.2
>>>
>>> Thanks,
>>> Ian
>>> --
>>> You received this message because you are subscribed to the Google Groups
>>> "weewx-development" group.
>>> To unsubscribe from this group and stop receiving emails from it, send an
>>> email to [email protected].
>>> To view this discussion on the web visit
>>> https://groups.google.com/d/msgid/weewx-development/7e25db58-909c-4ca3-a5bb-0beda4cd2458%40googlegroups.com.
>
> --
> You received this message because you are subscribed to the Google Groups
> "weewx-development" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to [email protected].
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/weewx-development/584076e2-278f-45b8-9d2b-d94306ecc9d3%40googlegroups.com.
--
You received this message because you are subscribed to the Google Groups
"weewx-development" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/weewx-development/236B76F5-3358-4313-80D8-2F41B823388C%40isylum.org.
