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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Is there a way to know the specifications of your cables? (sh.itjust.works)

submitted 1 month ago by Dariusmiles2123@sh.itjust.works to c/linux@lemmy.ml

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Hi everyone!

Over the years, I’ve started having big collection of cables or dongles.

Mostly USB-C, USB-A to Micro USB, USB A to C, USB C to A, HDMI..

I was wondering how I could know their specifications as nothing is written on them. Maybe through a Linux program telling me how fast they can transfer data.

I was wondering also if there was a way to know how much power was sent to a device when these cables are used to power one. For instance, I’ve noticed that my Steam Deck battery was draining when playing games with 15TDP and being charged with an iPhone charger.

I don’t know if it’s useful, but here are my computers: Steam Deck running Steam OS, Surface Go 1 running Fedora Silverblue, MacBook Pro 2012 running PopOs.

I don’t want to buy anything to be able to measure how much data or power these cables can send😇

Thanks in advance for your help.

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[–] hendrik@palaver.p3x.de 3 points 1 month ago*

Usually if a cable doesn't come with specifications, you'd have to measure it yourself. Resistance / voltage drop tells us what kind of power can be transferred. It's the same as with regular power cables. And I guess which contacts are connected can be measured with one of those (cheap) rigs. There's small devices available for that job. And of course a computer can try to transfer data and see how that goes.

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