> Yes. But, as other people stated, it is likely a significant effort,
> and there are other SDR devices that ship with fully open source
> software, sometimes not only software but even FPGA gateware or even

> open source hardware.

Which SDRs with PCIe do you remember?
I know about XTRX. Master osmo-trx does not support it. And I know about limesdr-pcie, I'm not convinced that it makes sense to buy in this state of development.

I don't know about GPL compatible PCIe SDR with Analog Devices AD93XX family chip. Results of SDR based on the Analog Devices versus Lime chip are in favor of Analog Devices. I did a simple DSB modulation test. Analog Devices has a cleaner spectrum, better carrier suppression. This is what I noticed first on the spectrum analyzer.

Does anyone know of an SDR combining PCIe and an AD93XX chip that has the potential to be supported by osmo-trx?

Does anyone know about such a CPRI for PCIe? I don't need it but libsdr.so supports it. I think this can be of benefit to the community.

Xaver

pá 11. 9. 2020 v 23:00 odesílatel Harald Welte <laforge@gnumonks.org> napsal:

Hi Xaver,

On Fri, Sep 11, 2020 at 08:09:16PM +0200, Xaver Zu wrote:
> Is it possible in its current form to have it in any branch?

I would prefer not to have it in a branch of the official repository.

> Can it at least stay in the gerrit?

I see no problem with having it in gerrit. I will add a related review
comment that the patch was rejected due to licensing concerns. I don't
think copyright prevents us from publicly documenting our development
process and reltaed decisions.

> Could I solve this with an open source (GPL) reimplementation of that
> library?

Yes. But, as other people stated, it is likely a significant effort,
and there are other SDR devices that ship with fully open source
software, sometimes not only software but even FPGA gateware or even
open source hardware.

By all means, don't let me discourage you from implementing an open
source alternative to that library. I just think there are other
SDR devices available, which most likely have a much larger user base
(at least in terms of FOSS projects like Osmocom, srsLTE, ...)

Regards,
Harald
--
- Harald Welte <laforge@gnumonks.org> http://laforge.gnumonks.org/
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