If you encounter a problem with microphone in Chromium on FreeBSD (and other *BSD), this is because it uses sndio audio backend and probably default microphone is not the one you want to use. In my case /dev/dsp0 is the HDMI input/output thus no audio input. There is no need to start system wide sndiod. You can use environment variables in ~/.profile to control audio input/output for the local spawning sndio client:

• export AUDIODEVICE="rsnd/4" sets default input/output device to /dev/dsp4.
• export AUDIORECDEVICE="rsnd/3" sets default input device to /dev/dsp3.
• export AUDIOPLAYDEVICE="rsnd/2" sets default output device to /dev/dsp2.

You can simply set AUDIODEVICE="rsnd/4" to switch default input and output device, and/or AUDIORECDEVICE="rsnd/3" to change default microphone source. If you want to have choice to switch between several devices on the fly you will need to use sndiod and provide set of devices with -f flag. See sndio [1] and sndiod [2] man pages for more information.
[1] https://man.openbsd.org/sndio.
[2] https://man.openbsd.org/sndiod

Imagine you have a disk full of your precious data that you want to mount to a new Ubuntu Linux system and add user to match the existing home directory.

# adduser user
Adding user `user' ...
Adding new group `user' (1000) ...
Adding new user `user' (1000) with group `user' ...
Creating home directory `/home/user' ...
Stopped: Couldn't create home directory `/home/user': File exists.

Removing directory `/home/user' ...
Removing user `user' ...
Removing group `user' ...
groupdel: group 'user' does not exist
adduser: `groupdel user' returned error code 6. Exiting.

Now you can say your all precious data goodbye. No questions asked. Core Linux utility adduser just found your existing data and erased them without even asking. The years is 2021 (30 years since Linux was created).

This is why for over 15 years I am only working with BSD Operating Systems [1] [2] [3] [4]. Its Open-Source with long-term maintenance and self-compatibility in mind.  BSD license is even more liberal than GPL for your products [5]. You should try BSD too :-)

[1] https://www.freebsd.org/
[2] https://www.openbsd.org/
[3] https://netbsd.org/
[4] https://www.dragonflybsd.org/
[5] https://en.wikipedia.org/wiki/List_of_products_based_on_FreeBSD

It is my great pleasure to inform you folks that, almost after four years, I did a new release of LibSWD-0.7 [1], a low-level embedded systems access open framework. Special thanks goes to Andrew Parlane of Carallon Ltd [2] for his much appreciated contributions! Well now I feel like I need to invent some nice small device based on ARM Cortex-M0 CPU :-)

[1] https://github.com/cederom/LibSWD
[2] http://www.carallon.com/

My port of HackRF has been committed. Enjoy your HackRF One SDR on FreeBSD OS! =)

I have, finally, switched to Apple OS X. This is so close to my favorite FreeBSD (OSX is a Unix BSD / Darwin derivative) and it has all drivers and multimedia features working, that I think I will switch for good. This the simple, stable, and functional platform, where you can really focus on your work. Along with the MacPorts suite installed that provide access to the Open-Source / Free-Software I feel like home :-)

LibSWD 0.5 is out! It brings mainly the rename of all function prefix due API conflicts with other existing solutions.

Please visit Project Website for more information :-)