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Some basic info about USB (lemmy.world)

submitted 2 months ago by SouravSatvaya to c/technology

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[–] rhandyrhoads 14 points 2 months ago (1 children)

There is some stuff to be learned, but especially with USB-C I'd say the vast majority are not labeled. There's even some devices charged with USB C that can't be charged with a PD charger and need an A to C cable. Phones are a great example where you have to look up the specs to know data transfer capabilities. Additionally they renamed the USB 3.0 standard which has been established for over a decade to USB 3.1 Gen 1 which is completely unnecessary and just serves to confuse. The standard was largely understandable with USB 3.0 generally being blue or at least a color other than black and on decently modern devices USB 2.0 would be black. With USB-C indication has just about gone out the window and what used to be a very simple to understand standard has now become nearly impossible to understand without having researched every device and cable you interact with.

[–] [email protected] -1 points 2 months ago* (last edited 2 months ago) (1 children)

There's even some devices charged with USB C that can't be charged with a PD charger and need an A to C cable

Phones with qualcomm chips briefly had their own proprietary fast charging standards that were not a USB standard. You are unlikely to be using those devices in 2024. But is it USB-IF's fault manufacturers tried to create proprietary standards to collect royalties?

Additionally they renamed the USB 3.0 standard which has been established for over a decade to USB 3.1 Gen 1 which is completely unnecessary and just serves to confuse

No they didn't?

The 5Gbps transfer rate introduced in 2008 is called "Superspeed" and it always has been.

USB X.X is not a port or a transfer speed. It's the standard (ie a technical whitepaper). The standard is updated as time marches on and new features are added.

The standard was largely understandable with USB 3.0 generally being blue or at least a color other than black and on decently modern devices USB 2.0 would be black.

This was never a requirement, but it was nice to know which Type-A ports had 8 pins vs 4-pins.

With USB-C indication has just about gone out the window and what used to be a very simple to understand standard has now become nearly impossible to understand without having researched every device and cable you interact with.

For the most part you just plug it in and it works. If you need something specific like an external GPU connection, you can't use your phone charging cable, sure. Is that really that big of a deal?

[–] [email protected] 4 points 2 months ago

But is it USB-IF’s fault manufacturers tried [...]

Yes, it absolutely is USB-IF's fault that they are not even trying to enforce some semblance of consistency and sanity among adopters. They do have the power to say "no ~~soup~~ certification for you" to manufacturers not following the rules, but they don't use it anywhere near aggressively enough. And that includes not making rules that are strict enough in the first place.