Upcoming deprecations and supported platform changes

[charlie-foxtrot]

I'm planning to deprecate explicit build support for rpiv1 (Raspberry Pi version 1 - ARMv6 CPU, Broadcom VideoCore IV GPU) in an upcoming release as I have no hardware to test it.

Is anyone using rtl_airband on an original raspberry pi?

I plan to continue to support (and test) rpiv2 (Raspberry Pi version 2 or 3 - ARMv7 CPU, Broadcom VideoCore IV GPU) assuming it is currently working with the latest Raspberry Pi OS (bookworm).

I am considering further reducing the set of build platforms by replacing armv7-generic and armv8-generic with a single generic option that works across x86, arm, etc.

Does anyone use armv7-generic or armv8-generic today?

Finally, under the assumption that the vast majority of people are compiling on the device they are running on, I plan to change the default platform to native.

[charlie-foxtrot]

these changes have been made in #444 and will be part of v5.0.0

[tjharman]

I missed this - I am running on a Raspberry Pi Zero W Rev 1.1 which is ARMv6

processor       : 0
model name      : ARMv6-compatible processor rev 7 (v6l)
BogoMIPS        : 997.08
Features        : half thumb fastmult vfp edsp java tls
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x0
CPU part        : 0xb76
CPU revision    : 7

Hardware        : BCM2835
Revision        : 9000c1
Serial          : 0000000019ce26ec
Model           : Raspberry Pi Zero W Rev 1.1

Still, I understand not supporting hardware you don't have/can't test. The current version is working well for me. The Broadcom offload means it only uses ~50% CPU which I think is amazing given what it's doing.

So in summary yes I have a old CPU but I fully understand and agree with your stance to drop support for it. Thank you for a great project.

[charlie-foxtrot]

No problem, the new default platform should work fine.

It's only the use of the GPU for FFT on the rpi1s that's no longer supported.

Can you try updating to the latest main and do a clean build?

[charlie-foxtrot]

If the performance is much worse, let me know. If there's a good argument to continue supporting (and I can test it) then I will