Raspberry Crumble Pi

[Hengehall]

I’ve been trying to run a crumble off a raspberry pi. I’ve tried two crumbles, a Pi 3 and a Pi 4 and I’m getting the same problem – the GUI just won’t pick up the crumble. The Pi can see it as a USB device, but I can’t get anything to run on it. It looks like there is a driver missing. Any ideas?

[Joseph]

Hi there,

Are you running Buster? We did a quick test a few weeks ago and it seemed to work.

We will do some more tests here, though. In the meantime it might be worth reinstalling the deb file.

Best wishes,

Joseph

[Hengehall]

Yes – on Buster. I’ll try again. Since this morning I’ve tested it on a Mac and all was OK. The crumble HW is definitely OK.

[Hengehall]

Update – now got it running on a Pi 3 which is running stretch, so it looks like it’s a buster issue.

[Joseph]

Really strange! We just tested on Buster on a Pi 3 and it worked first time. Currently setting up a Pi 4 to test…

Are you installing by simply double-clicking the deb file, or are you using the command line?

After we’ve finished testing on the Pi 4, we’ll try a few different things to see if we can break it!

Joseph

[Hengehall]

I tried installing both ways. Let me know how you get on with the Pi 4 – I’m going to install a fresh image on my SD card to see if that makes a difference.

[Joseph]

Looks like it is a problem with the USB library on the Pi 4. Not sure what’s changed yet, but we’re investigating now…

[villalvilla]

Hi,

Is there any advance on this? We are experiencing same troubles in raspbian buster with raspi 4. We tried installing this libraries also: https://github.com/signal11/hidapi and seems to happen the same. Any help on this?

Thanks

[villalvilla]

Hi again,

After updating many packages and checking python3* and python 1* libraries, I found that the problem is related to libusb/io.c. Exactly it fails like this:
python: ../../libusb/io.c:2116: handle_events: Assertion `ctx->pollfds_cnt >= internal_nfds’ failed

Hope it helps in your researchment

[Author]

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