Warner's Random Hacking Blog

All the CPUs that FreeBSD supports have hard floating point in them. We've supported hard float for quite some time in the FreeBSD kerne...

NanoBSD Enhancements I've been experimenting with NanoBSD enhancements for embedded. Eventually, they will be in the mainline of Nano...

I/O was beginning Kernel: What Happen? Driver: Someone set us up the DMA. IO APIC: We Got Signal Kernel: What? Driver: IO MMU Turn ON ...

DirecTV has been using MoCA for some time to implement their whole home DVR. I've been a DirecTV subscriber for years. In my previous ho...

Just a quick note. I recently tried to create a FreeBSD-stable 9 image for an Atmel AT91SAM9G20 board I have. It didn't work. So, I trac...

OK. After fighting several gdb build issues, I gave up on earlier versions. I thought I'd go old school to try to find the problem. Fir...

OK. Flush with pride after the success of building tools for my TiVo, I thought I'd get the program that I built the tools for working. ...

Intro As long-term readers of my blog know, I've been nursing along a TiVo HR10-250 for the past few years. It works great for the low...

Let's say you have one of those fancy washing machines with sophisticated circuitry. Well, then if your machine is like mine, it sucks...

FreeBSD is moving from gcc to clang as its base compiler. This works really well for x86, and moderately well for arm. However, it doesn...

Consider the function foo: int foo() { if (error) return -1; else return 12; } and consider its use here: int n; ... if ((n = foo())...

As you may know, I still have a HR10-250 in service.  I run TivoWebPlus 2.1 on the box. It mostly works the way I want it, although at times...

Over the past 5 or 6 years, I've had my TiVo HR10-250 setup to extract videos off of it.  Please see my other posts on how I set that up...

I had to move the hard drive between two TiVos recently.  Since it was on DirecTV, I got the dreaded Error #51.  Since I couldn't recall...

Woot!  After working hard to get the SAM9260-EK rescued, I'm able to boot SAM9260-EK to multiuser. Here's the dmesg: Copyright (c...

Quite some time ago, I received a AT91SAM9260-EK board from Atmel.  I tried to turn it on at the time, and it looked dead.  I put it on the ...

Wish me luck. I just typed the following commands: git clone https://github.org/freebsd/freebsd-head.git cd freebsd-head git branch a...

Greetings again, Here's a slightly edited version of a post I made to the FreeBSD arm list, proposing a path forward to cleanup and uni...

Recently, I've been trying to catch up with some of the technical debt that the FreeBSD/arm port has accumulated.  Some of that technica...

I recently received a complementary copy of the book FreeBSD Device Drivers by Josheph Kong. I also had the pleasure of meeting Josheph Kon...