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@dreamcat4
dreamcat4 / webcamd.md
Last active July 15, 2023 13:34
How to Install Webcamd on FreeBSD, FreeNAS / NAS4Free / pfSense, with Finch v1.27 - http://dreamcat4.github.io/finch/

Webcamd How-To

First of all, visit the FreeBSD WebcamCompat page to check that your TV Tuner device is supported. Most popular webcams are compatible. Then follow the instructions on this page to install the webcamd program.

In some fewer cases, you may own a compatible PCI card, which is recognised by the system as a native PCI device. Those devices need their own special kernel module, and do not use webcamd at all. For example the Hauppauge WinTV HVR-4000. Which require the cx88 kernel modules to be loaded. You will instead need to follow the steps here for installing the cx88 device driver.

Most of these commands can just be copy-pasted. The webcamd program must be installed directly in Finch's chroot. This is because webcamd needs to create new device nodes e.g. /dev/dvb, etc. in '/dev/'. Such special files require 'mknod' cmd. That can't be created in a jail.

@dch
dch / 20150127_freebsd_poudriere.md
Created January 27, 2015 19:33
Notes on using poudriere to build FreeBSD packages
@johnko
johnko / _notes.md
Last active February 16, 2018 12:04
Experiments with FreeBSD on Intel Compute Stick

Experiments with FreeBSD on Intel Compute Stick

Ingredients

Acquire an Intel Compute Stick with Atom CPU and 2GB of RAM, 32GB of storage.

The product code I got is BOXSTCK1A32WFC.

You'll also need:

@bijanebrahimi
bijanebrahimi / README.md
Created February 20, 2017 14:02
Debugging FreeBSD Kernel
@shafik
shafik / WhatIsStrictAliasingAndWhyDoWeCare.md
Last active November 8, 2024 20:02
What is Strict Aliasing and Why do we Care?

What is the Strict Aliasing Rule and Why do we care?

(OR Type Punning, Undefined Behavior and Alignment, Oh My!)

What is strict aliasing? First we will describe what is aliasing and then we can learn what being strict about it means.

In C and C++ aliasing has to do with what expression types we are allowed to access stored values through. In both C and C++ the standard specifies which expression types are allowed to alias which types. The compiler and optimizer are allowed to assume we follow the aliasing rules strictly, hence the term strict aliasing rule. If we attempt to access a value using a type not allowed it is classified as undefined behavior(UB). Once we have undefined behavior all bets are off, the results of our program are no longer reliable.

Unfortunately with strict aliasing violations, we will often obtain the results we expect, leaving the possibility the a future version of a compiler with a new optimization will break code we th

@Martinfx
Martinfx / README.md
Created October 25, 2018 20:59 — forked from bijanebrahimi/README.md
Debugging FreeBSD Kernel