hi!
> I blacklisted the kernel module dvb_usb_rtl28xxu in
/etc/modprobe.d/blacklist using sudo nano
> /etc/modprobe.d/blacklist and adding in blacklist dvb_usb_rtl28xxu but
this didn't work.
you might have to unplug then replug the device. worst case you can
reboot. but be sure there is no other process using the SDR.
> On another Rspberry pi everything on ChrisM510 instructions installed and
also installed weewx-mqtt but the only time
> the broker will get information from the raspberry pi is when I run weewx
directly and not as a daemon.
this sounds like the user running weewx does not have permission to
read/write to the SDR. when you install the rtl-sdr software, that adds
*you* to whatever group can read/write to the SDR. so if my guess is
correct, you must add weewx to whatever group the rtl-sdr software created.
1) find the group by looking at the sdr udev rules:
more /etc/udev/rules.d/rtl-sdr.rules
you should see likes something like this:
SUBSYSTEMS=="usb", ATTRS{idVendor}=="0bda", ATTRS{idProduct}=="2832",
ENV{ID_SOF
TWARE_RADIO}="1", MODE="0660", GROUP="plugdev"
in this case, the group is "plugdev"
2) add the weewx user to that group:
sudo usermod -aG plugdev weewx
then when you run weewxd as 'weewx', it should be able to read the SDR
m
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