Steve,
Thanks for your advice. My weewx-rtld is now running on Raspbian Buster!
I had to put 'blacklist dvb_usb_rtl28xxu' in file
/etc/modprobe.d/blacklist.conf
and added in weewx section [Rtldavis] in weewx.conf:
# set the library path to the local build librtlsdr
ld_library_path = /home/weewx/librtlsdr/build/src
Cheers,
Luc
On Saturday, 25 April 2020 00:00:02 UTC-3, Steve Wormley wrote:
>
> I actually just ran across this trying to get rtldavis working. It appears
> that the new zero-copy code in the packaged version of librtlsdr is the
> problem. I compiled a local copy without zero-copy support and pointed
> LD_LIBRARY_PATH at it to not use the system librtlsdr and all is well.
>
> 22:24:34.409069 SetFreqCorrection 0 ppm Successful
> Allocating 1 zero-copy buffers <-- broken
>
> I've read things about zero copy expecting a 16k buffer which rtldavis
> doesn't use, but it could be a number of things like a bad interaction with
> the go library.
>
> Well, mostly well. Eventually the frequency correction code wanders off
> far enough to cause it to eventually start failing 100% of the time.
> Disabling that gets me to well above 95% packet success for long periods.
> Not sure if this is also a librtlsdr problem or something else.
>
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