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From:
Thomas Dettbarn <dettus@dettus.net>
Subject:
Re: New port cad/openfpgaloader
To:
ports@openbsd.org
Date:
Tue, 9 Jun 2026 08:00:11 +0200

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Hello Stu!


Thank you so so much for your feedback! I will update my
ports later.


Thomas

On 6/9/26 01:14, Stuart Henderson wrote:
> On 2026/06/09 00:54, Thomas Dettbarn wrote:
>> +
>> +*** WARNING *** You might need to recompile the kernel.
>> +Some devices have problems when they are accessed through uftdi(4). One
>> +of the ways to disable them for this module is by commenting out their
>> +USB IDs in /usr/src/sys/dev/usb/uftdi.c. Like so:
>> +
> configuring the kernel via the bsd.re-config(5) mechanism would
> usually be the most convenient way to do this and I think I would
> avoid suggesting other methods. basically you would want to add
> the disable line to /etc/bsd.re-config, run /usr/libexec/reorder_kernel,
> and reboot.
>
>
Nice!
I did not know about this method. I will try it, if it works, then I
will update the README.

UNFORTUNATELY, with my setup, I encountered a problem where
I need this module, albeit not for loading the FPGA board itself: A
second USB device I had (Which I used for UART communication
with my design) did not work with ugen(4).

So removing uftdi(4) completely was too much, I needed to be
more precise. Hence my suggestion with the kernel patch.