#fosdem was fun! Was great to meet some people in person for the first and also enjoyed quite a few random encounters. I was also not prepared just how crowded it got and unfortunately missed at least two people I wanted to meet. Let’s see if I come again next year given how close the event is […]

Just arrived in Brussels for #fosdem 😁

I’ll be traveling to Brussels for #fosdem for the first time tomorrow evening! Come and find me or reach out if you want meet and chat about #asahilinux or anything else!

Just replaced the battery of my aging M1 macbook air. That was quite annoying but the new one should be good for another 4-5 years now I hope. Obviously, I have four leftover screws even though I was sure I didn't forget anything and none of them fit into the last hole of the chassis backplate […]

We've known about Debug-USB for a while [1] and suspected that the new "dockchannel UART" ends up there somehow. Turns out, at least macOS 26 just comes with a driver for this: After switching the port to the correct mode [2] /dev/cu.kis-100000-ch-[0-4] appear and the first one indeed is the […]

M3 progress 🥳 https://mastodon.social/users/shiz/statuses/115906763349020772

Working on USB4 for #asahilinux and documenting the various components right now. Here's a simplified ASCII drawing:

Looks like I'll be at #FOSDEM this year! I will probably arrive Friday evening and leave Sunday afternoon. Happy to meet and chat about #asahilinux or anything else. I blame @vbabka#fosdem#asahilinux@ljs and @neal for luring me there :D

@sven @janne USB2 is kind of a massive thorn in the side of Type-C handling tbf >_< On Qualcomm SoCs we have a fun issue: the USB2 PHY derives its clock from the USB3 PIPE clock, and the QMPPHY driver currently turns PIPE off when you go into 4-lane alt mode, so using 4-lane DP breaks USB2 on […]

Debugging some #asahilinux USB issues with @janne and right now it looks like ATCPHY is even more cursed than we thought: At boot time, macOS powers up the usb2 PHY once, switches it to host mode and immediately shuts it down again even when no device is connected. I missed this so far but it […]

For those who missed my #asahilinux #39c3 talk, it's available at https://media.ccc.de/v/39c3-asahi-linux-porting-linux-to-apple-silicon now. I've also just pushed my slides to https://github.com/svenpeter42/39c3 and uploaded them as PDF to https://cfp.cccv.de/39c3/talk/YGHB9K/

#39c3 impact on my sleep schedule 🙈

#39c3 was amazing again! Met lots of old and new friends again despite having to build slides and unfortunately missed a few people I wanted to talk to as usual. Didn’t get much sleep and looking forward to catch up on that now. Can’t wait for next year!

3.5 hours until my talk about #asahilinux which will be recorded and also live streamed at https://streaming.media.ccc.de/39c3/one

Janne brought some more Asahi stickers! I'm at the fail0verflow assembly at #39c3 Feel free to come and say hi and grab one. https://social.treehouse.systems/users/janne/statuses/115785483634725880

The plan: I’m gonna finish my slides on day 1 long before the evening, this is gonna be easy and there’s plenty of time. Reality: spent the past hours talking to people and not even starting with the title slide 😅

Just arrived at #39c3, I’m at the fail0verflow assembly if anyone wants to say hi!

I’ll be bringing leftover stickers to #39c3 for anyone who wants one #asahilinux https://social.treehouse.systems/@janne/115332571177403243

What a nice early Christmas present! atcphy was just picked up from LKML 🥳: https://lore.kernel.org/asahi/[email protected]/T/#t #asahilinux

> Rust is too constrained without [unsafe blocks] to get any useful work done. Just saw this in the wild again. @veloren has about 330,000 lines of Rust code today. It's a networked, multi-threaded, 3D, portable game and game engine played by thousands of people. Very much not a contrived […]

Well… played Metroid prime 4 and most of the game was okay. Not nearly as good as Prime 1 or Dread and worse than Prime 2 or 3. Now I’m close to the end and it turns out that what looked like an optional side quest for upgrades or whatever (collecting green crystals) is actually required to […]

Whenever you think USB surely can’t get any more cursed it always manages to surprise you! https://chaos.social/@karotte/115697510574124610

Now that the schedule is finally out: I'll be giving a talk mostly about the USB Type-C mess on Dec 30th, 11:00 at #39c3 #asahilinux https://fahrplan.events.ccc.de/congress/2025/fahrplan/event/asahi-linux-porting-linux-to-apple-silicon

🇪🇺✅ SUCCESS: We've prevented mandatory #chatcontrol through the back door!🎉 A big win & THANKS to everyone! 🙏 But ⚠️: Anonymity-breaking age checks & "voluntary" mass scanning are still planned. The fight continues next year! https://chatcontrol.eu

Just came back from a vacation in Portugal where it was warm and I rarely used a computer. Now I’m back and it’s cold in Germany and I have to use a computer all day. I need another vacation already 🫠

so I’ve been reversing the classic mac os usb stack and I found a credits easter egg of sorts. The OHCI controller driver emulates a hub device, which uses the OHCI root hub registers on the back end. The USB device string descriptors for this emulated hub […] [Original post on labyrinth.zone]

huh, neat, I never realized that it’s ofc possible to use WLAN Calling via mobile data of another network if you have two SIM cards in your phone

Now that the Apple Silicon dwc3 driver is in -next it's time to continue with the Type-C PHY driver, which is the last part required for upstream USB3: https://lore.kernel.org/asahi/[email protected]/ #asahilinux #linux

On Thursday, I sent this RFC: https://lore.kernel.org/lkml/[email protected]/ On Friday, there was the expected phoronix coverage. But also an unexpected one: https://www.nytimes.com/2025/10/24/learning/word-of-the-day-sheaf.html

Got my #39c3 ticket 😁

And now for something completely different - the 3D maze screensaver from Windows 95, ported to a few modern platforms, including macOS (by me) https://github.com/headshot2017/3dmaze It's also playable! But I gotta admit I’m no good at 3D mazes! […] [Original post on mastodon.gamedev.place]

At the JHA Council press conference (yesterday), the Danish Minister of Justice encourages journalists to "follow the money" on how the #chatcontrol narrative has arised (from 6:40 […]

Just sent the next version of the Apple Silicon USB3 series, this time only the dwc3 changes: https://lore.kernel.org/asahi/[email protected]/ After this, only the PHY itself is missing which I'll send next. #asahilinux

🇪🇺#ChatControl now officially removed from the agenda for Oct. 14th🥳: https://data.consilium.europa.eu/doc/document/ST-13309-2025-INIT/en/pdf ⚠️However, EU governments continue to work on the proposal. 🗓️The next meeting of EU interior ministers is on Dec. 6/7. 🚫📡🔐Mission: No mass scanning, no […]

hey wanna see something kinda interesting? this was the entire fix to the iPhone Antennagate in 2010. 20 bytes. (this is going to be a very long thread 🧵)

Every day there’s some new broken thing in iOS :/ At least this one is mostly just funny and doesn’t actually break anything.

Finally managed to reduce my thoughts on Three Body Problem to a few words. It's Pretentious Star Trek, but sold as much more.

Yesterday, 10 years ago, Let's Encrypt issued their first #tls #certificate to the domain name `helloworld.letsencrypt.org`. Since then, they issued 7 billion certificates. To quote Borat: "Great success!" Congrats! #letsencrypt #tls #ssl #https

Updated to iOS 26 and the only way to make the new UI usable is to switch on some accessibility settings: reduced transparency, increased contrast. Still undecided about reduced motion.

With all the mentions of silksong I figured I’d try hollow knight before that one. Turns out I’m not very good at it and get frustrated very quickly. This really reminds me why I usually don’t play games.

Just submitted the Apple Silicon Type-C PD controller changes separate from the PHY and DWC3 work for USB3: https://lore.kernel.org/asahi/[email protected]/ The PD controller on these machines negotiates the correct mode (usb, displayport, thunderbolt) with […]

Made some changes to a driver and the kernel compiled and booted the first time and it looks like everything still works. This is very suspicious. Something must be terribly wrong.

Did you know your MacBook has a sensor that knows the exact angle of the screen hinge? It’s not exposed as a public API, but I figured out a way to read it and make it sound like an old wooden door. Source code and a downloadable app to try it yourself […] [Original post on hachyderm.io]

Since there’s been some confusion: this does *not* enable DisplayPort over these connectors or Thunderbolt. It only brings up the PHY correctly. For DisplayPort work on DCP is needed and for Thunderbolt the native host interface and finally the PCIe controller need to be brought up. This series […]

Just sent out v2 of the USB3 and Type-C PHY support https://lore.kernel.org/all/[email protected]/

I hate USB, that entire thing is just cursed.

Messed up the device tree bindings as usual because I forgot to run the checker for some reason but got some great comments from the dwc3 maintainer. The different approach he suggested to handling the dwc3 mess on apple silicon already looks much nicer.

I propose replacing calories with watt-hours. - Almost same value (1 kilocalorie / Calorie is ~1.1 watt-hours) - more intuitive for people who use electricity - never the confusing between calories (science), Calories (food, which is technically kilocalories), kilocalories, and 'kilo Calories' […]

I've finally just submitted the RFC series for USB3 support on Apple Silicon machines. RFC because the entire Type-C machinery spans multiple subsystems and has quite a few quirks which makes the entire thing rather annoying to deal with and I'm not 100% convinced about the current approach […]