Re: gr-soapy with lime driver no go

[Jeff Long]

No, the underlying C++ is not hardware specific and there is no Soapy driver code in GR. We added some hardware-specific YAML files to make life easier. Users can add their own, too, easily enough. There are generic ones too at the moment, but to do things right, they have to know the characteristics of every possible device (e.g, gains) and they're a maintenance nightmare. It's pretty easy to throw one block for each sdr you're likely to use on the screen and disable the ones you're not using, if you switch between them frequently.

On Wed, Oct 13, 2021 at 5:47 PM Marcus D. Leech <patchvonbraun@gmail.com> wrote:

On 2021-10-13 4:20 p.m., Jeff Long wrote:

This is a LimeSDR Mini.

I think the complaint is about the fact that auto-discovery of Lime doesn't work?  Not sure.
  To me, auto-discovery is fraught with issues, and I have *NEVER* in the 17 years I've been
  using Gnu Radio relied on it.

But more disturbing to ME is that the attached screen-cap seems to indicate that the Soapy blocks
  are all *device* specific.  This seems wayyyy broken to me.  It means you cannot have an application that
  is device agnostic.  We have had device-agnostic apps for a LONG time--ever since gr-osmosdr came onto the
  scene and then again when SoapySDR showed up.  We're going back to device-specific source blocks?  WHY????

On Sun, Oct 10, 2021 at 8:03 PM Aardric <aardric@aardvarr.ca> wrote:

Hail,
    My rtl-sdr soapy source block runs with attached hardware but
running the flow graph with the lime source block throws out the
unpleasant response:

   File "./test39_lime-sdr.py", line 88, in __init__
     stream_args, tune_args, settings)
RuntimeError: SoapySDR::Device::make() no match

 > SoapySDRUtil --find="driver=lime"
######################################################
##     Soapy SDR -- the SDR abstraction library     ##
######################################################

Found device 0
   addr = 1d50:6108
   driver = lime
   label = LimeSDR-USB [USB 3.0] 9081C05C4212E
   media = USB 3.0
   module = FX3
   name = LimeSDR-USB
   serial = 0009081C05C4212E


  --init--
         self.soapy_limesdr_source_0 = None
         dev = 'driver=lime'
         stream_args = ''
         tune_args = ['']
         settings = ['']

         self.soapy_limesdr_source_0 = soapy.source(dev, "fc32", 1,
"driver='lime'",stream_args, tune_args, settings)

I don't know why the dev_args input of "driver='lime'" is required.

git branch gnuradio 3.9-maint
built with PyBOMBS (on 2021-10-09)
opensuse Leap 15.2.

The web page https://wiki.gnuradio.org/index.php/Soapy was informative
but didn't tell me where to go next with this. Before I begin the
daunting (for a non-developer) task of exploring more deeply, I thought
to query this forum for obvious suggestions or known solution (or bug
status).

Rick