37C3: The Tech Behind Life With Quadraplegia

January 9, 2024 by 21 Comments

While out swimming in the ocean on vacation, a big wave caught [QuadWorker], pushed him head first into the sand, and left him paralyzed from the neck down. This talk isn’t about injury or recovery, though. It’s about the day-to-day tech that makes him able to continue living, working, and travelling, although in new ways. And it’s a fantastic first-hand insight into how assistive technology works for him.

If you can only move your head, how do you control a computer? Surprisingly well! A white dot on [QuadWorker]’s forehead is tracked by a commodity webcam and some software, while two button bumpers to the left and right of his head let him click with a second gesture. For cell phones, a time-dependent scanner app allows him to zero in successively on the X and Y coordinates of where he’d like to press. And naturally voice recognition software is a lifesaver. In the talk, he live-demos sending a coworker a text message, and it’s almost as fast as I could go. Shared whiteboards allow him to work from home most of the time, and a power wheelchair and adapted car let him get into the office as well.

The lack of day-to-day independence is the hardest for him, and he says that they things he misses most are being able to go to the bathroom, and also to scratch himself when he gets itchy – and these are yet unsolved problems. But other custom home hardware also plays an important part in [QuadWorker]’s setup. For instance, all manner of home automation allows him to control the lights, the heat, and the music in his home. Voice-activated light switches are fantastic when you can’t use your arms.

This is a must-watch talk if you’re interested in assistive tech, because it comes direct from the horse’s mouth – a person who has tried a lot, and knows not only what works and what doesn’t, but also what’s valuable. It’s no surprise that the people whose lives most benefit from assistive tech would also be most interested in it, and have their hacker spirit awakened. We’re reminded a bit of the Eyedrivomatic, which won the 2015 Hackaday Prize and was one of the most outstanding projects both from and for the quadriplegic community.

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Hackaday Links: January 7, 2024

January 7, 2024 by 27 Comments

Oh, perfect — now our cars can BSOD. At least that’s how it looks from a forum post showing a Blue Screen of Death on a Ford Mustang Mach E, warning that an over-the-air software update failed, and now the car can’t be driven. The BSOD includes a phone number to reach Ford’s Customer Relationship Center and even presents a wall of text with specific instructions to the wrecker driver for loading the bricked vehicle onto a flatbed. Forum users questioned the photo’s veracity, but there are reports of other drivers getting bricked the same way. And we’ve got to point out that even though this specific bricking happened to an EV, it could just have easily happened to an ICE vehicle too; forum members were particularly prickly about that point. It would be nice if OTA software updates on vehicles could always roll back to the previous driveable state. Still, we suppose that’s not always possible, especially if memory gets corrupted during the update. Maybe the best defense against a bricked vehicle would be to keep a beater around that doesn’t need updates to keep running.

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FLOSS Weekly Episode 764: You Have To Be Pretty Cynical

January 3, 2024 by 8 Comments

This week Jonathan Bennett and Katherine Druckman talk with benny Vasquez, chair of AlmaLinux, all about the weird road we’ve been on with Enterprise Linux distributions, and how that’s landed us here, where we have AlmaLinux, Rocky Linux, and multiple other Red Hat downstream distros. What’s the difference between those projects, and why does it matter?

Projects need more than just developers. How do you keep members doing documentation, bug hunting, outreach, and even graphic design plugged in and feeling like part of the team? How do you walk the narrow line between the different directions a project can drift, setting up your community for long term success? And where’s the most surprising place benny has found AlmaLinux running? And why is benny’s first name never capitalized? Give this week’s show a listen to find out!

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37C3: When Apple Ditches Lightning, Hack USB-C

December 30, 2023 by 11 Comments

[Thomas Roth], aka [Ghidraninja], and author of the [Stacksmashing] YouTube channel, investigated Apple’s Lightning port and created a cool debugging tool that allowed one to get JTAG on the device. Then, Apple went to USB-C for their new phones, and all his work went to waste. Oh well, start again — and take a look at USB-C.

Turns out, though, that the iPhone 15 uses the vendor-defined messages (VDM) capability of USB-PD to get all sorts of fun features out. Others had explored the VDM capabilities on Mac notebooks, and it turns out that the VDM messages on the phone are the same. Some more fiddling, and he got a serial port and JTAG up and running. But JTAG is locked down in the production devices, so that will have to wait for an iPhone 15 jailbreak. So he went poking around elsewhere.

He found some other funny signals that turned out to be System Power Management Interface (SPMI), one of the horribly closed and NDA-documented dialects owned by the MIPI Alliance. Digging around on the Interwebs, he found enough documentation to build an open-source SPMI plugin that he said should be out on his GitHub soon.

The end result? He reworked his old Lightning hardware tool for USB-C and poked around enough in the various available protocols to get a foothold on serial, JTAG, and SPMI. This is just the beginning, but if you’re interested in playing with the new iPhone, this talk is a great place to start. Want to know all about USB-C? We’ve got plenty of reading for you.

37C3: You Think It’s Bad With Pluto? A History Of The Planets

December 30, 2023 by 28 Comments

Not every talk at the Chaos Communication Congress is about hacking computers. In this outstanding and educational talk, [Michael Büker] walks us through the history of our understanding of the planets.

The question “What is a planet?” is probably more about the astronomers doing the looking than the celestial bodies that they’re looking for. In the earliest days, the Sun and the Moon were counted in. They got kicked out soon, but then when we started being able to see asteroids, Ceres, Vesta, and Juno made the list. But by counting all the asteroids, the number got up above 1,200, and it got all too crazy.

Viewed in this longer context, the previously modern idea of having nine planets, which came about in the 1960s and lasted only until 2006, was a blip on the screen. And if you are still a Pluto-is-a-planet holdout, like we were, [Michael]’s argument that counting all the Trans-Neptunian Objects would lead to madness is pretty convincing. It sure would make it harder to build an orrery.

His conclusion is simple and straightforward and has the ring of truth: the solar system is full of bodies, and some are large, and some are small. Some are in regular orbits, and some are not. Which we call “planets” and which we don’t is really about our perception of them and trying to fit this multiplicity into simple classification schemas. What’s in a name, anyway?

Gentoo Linux, Now A Bit Less For The 1337

December 29, 2023 by 37 Comments

Among users of Linux distributions there’s a curious one-upmanship, depending on how esoteric or hardcore  your distro is. Ubuntu users have little shame, while at the other end if you followed Linux From Scratch or better still hand-compiled the code and carved it onto the raw silicon with a tiny chisel, you’re at the top of the tree*. Jokes aside though, it’s fair to say that if you were running the Gentoo distribution you were something of a hardcore user, because its source-only nature meant that everything had to be compiled to your liking. We’re using the past tense here though, because in a surprise announcement, the distro has revealed that it will henceforth also be available as a set of precompiled binary packages.

There may be readers with long and flowing neckbeards who will decry this moment as the Beginning of the End, but while it does signal a major departure for the distro if it means that more people are spurred to take their Linux usage further and experiment with Gentoo, this can never be a bad thing. Gentoo has been on the list for a future Jenny’s Daily Drivers OS review piece, and while we’re probably going to stick with source-only when we do it, it’s undeniable that there will remain a temptation to simply download the binaries.

Meanwhile this has been written on a machine running Manjaro, or Arch-for-cowards as we like to call it, something that maybe confers middle-ranking bragging rights. Read a personal tale of taking off those Linux training wheels.

* Used a magnifying glass? You’re just not cutting it!

FLOSS Weekly Episode 763: Fedora Fixes Everything

December 27, 2023 by 18 Comments

This week Jonathan Bennett and Dan Lynch talk once again with Neal Gompa of Fedora, CentOS, openSUSE and more. This time the focus is Fedora, with sprinklings of Immutable Linux, KDE 6, and the new Linux stack of Pipewire, Portals, and Wayland. Neal gives us a rundown of what exactly makes Fedora Atomic so interesting, and why you probably don’t want it running on your desktop. But in a computer lab, or on a public machine? Fedora Atomic might be exactly what you need.

Up next there’s Pipewire, the userspace sound server that replaces Pulseaudio and Jack. Should we think of Pipewire as Jack 3.0? And what’s the secret to getting really reliable low-latency performance for Pipewire in Fedora? It might not be what you expect.

There’s a popular rant online, that Wayland breaks everything. And for years, that’s been a relatively accurate statement, in that Wayland hasn’t been ready for prime-time. Fedora 40 has gone all in on the belief that Wayland’s time has come, with KDE and Gnome no longer having an X11 native option. It’s Wayland all the way. And as one that has run Rawhide, I can say that the future there is bright. Literally, if you have an HDR capable monitor.

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