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   Pete Keen (zrail@hachyderm.io)'s status on Friday, 16-Feb-2024 07:53:41 JST Pete Keen

   • Thomas 🔭🕹️

   @thomasfuchs *jazzhands* protocol autonegotiation

   (To the lowest common denominator: usb 2.0)

   • Embed this notice
     Jesse Lamb (jesselamb@hachyderm.io)'s status on Friday, 16-Feb-2024 08:55:27 JST Jesse Lamb

     • Thomas 🔭🕹️

     @thomasfuchs I completely agree with your premise, but have you encountered random things that use an s-video or ps-2 style connector for power or communication in a seemingly arbitrary way? I have a few times and it’s always a surprise. Maybe there’s another standard for that connector I’m not aware of?

   • Embed this notice
     Justin Mancinelli (piannaf@fosstodon.org)'s status on Friday, 16-Feb-2024 09:23:26 JST Justin Mancinelli

     • Thomas 🔭🕹️

     @thomasfuchs 😬 ah yes, I first learned of this from https://hackaday.com/2021/03/22/cursed-usb-c-when-plug-orientation-matters/

     I only ran into a bad case of it about a month ago when I picked a random cable to plug my phone into the computer to run adb and it wouldn't work... too many minutes of trying to fix it with updating software versions, etc, then I tried flipping it around and it worked😠

   • Embed this notice
     Pete Keen (zrail@hachyderm.io)'s status on Friday, 16-Feb-2024 09:35:13 JST Pete Keen

     • Thomas 🔭🕹️

     @thomasfuchs Augh!!

   • Embed this notice
     Jesse Lamb (jesselamb@hachyderm.io)'s status on Friday, 16-Feb-2024 09:49:51 JST Jesse Lamb

     • Thomas 🔭🕹️

     @thomasfuchs Agreed. And for edge cases, seeing both ends of a cable almost always told the story and ambiguous ports like a DB-25 on a machine were clearly labelled.

   • Embed this notice
     ShadSterling (shadsterling@mastodon.social)'s status on Friday, 16-Feb-2024 10:06:26 JST ShadSterling

     • Thomas 🔭🕹️

     @thomasfuchs does anyone make a USB-C “sniffer” that you can connect a cable or device to and it will tell you which features are supported?

   • Embed this notice
     Ondřej Caletka (oskar456@mastodon.social)'s status on Friday, 16-Feb-2024 22:15:27 JST Ondřej Caletka

     • Thomas 🔭🕹️

     @thomasfuchs @zrail not true. All cables with USB Type-C connectors have to support USB 2.0 as well as power lines capable of 3A and CC singling wire. Otherwise it is not a complaint USB cable.

     Of course, there is no standards-police preventing manufacturers from producing something explicitly forbidden by the specs. But you can hardly blame USB IF for that.

   • Embed this notice
     morgan (mw@toot.community)'s status on Saturday, 17-Feb-2024 12:28:01 JST morgan

     in reply to

     • Thomas 🔭🕹️
     • Felix 𝄢

     @thegcat @thomasfuchs absolutely! USB IF really should have come up with some standard symbols for cables that passed tests and implemented certain features. They enforced compliance through logo trademarks before, why stop now?

   • Embed this notice
     Felix 𝄢 (thegcat@toot.kif.rocks)'s status on Saturday, 17-Feb-2024 12:28:02 JST Felix 𝄢

     • Thomas 🔭🕹️

     @thomasfuchs I think we already discussed that some time ago, but I’m still waiting for colour-coding for USB-C similar to how it was for PS/2. Blue for DP, Red für USB 2, Pink for USB 3.2 Gen 2x2, Moss for dumb PD up to 60W, Green for PD up to 100W, Neon Green for the new PD up to 1.21 Gigawatts, and so on. We'd also get back the 🌈 on Apple Thunderbolt cables too!