usb

7 stories and discussions about usb, aggregated from every source we track.

1.

<p>According to the Wikipedia article <a href="https://en.wikipedia.org/wiki/USB_C#Cables" rel="ugc">https://en.wikipedia.org/wiki/USB_C#Cables</a></p> <blockquote> <p>USB-C 3.1 cables are considered full-featured USB-C cables. They are electronically marked <strong>cables that contain a chip</strong> with an ID function based on the configuration channel and vendor-defined messages (VDM) from the USB Power Delivery 2.0 specification. Cable length should be ≤ 2 m for Gen 1 or ≤ 1 m for Gen2. <strong>Electronic ID chip</strong> provides information about product/vendor, cable connectors, USB signalling protocol (2.0, Gen1, Gen 2), passive/active construction, use of VCONN power, supported VBUS current, latency, RX/TX directionality, SOP controller mode, and <strong>hardware/firmware version.</strong></p> </blockquote> <p>Is anyone here aware of USB-C cable teardowns, or analysis of the chips inside? I'm concerned about the security implications of an infected USB cable.</p>

51 points•chadski•over 9 years ago•13 comments
2.

The Great Pandemic Lockdown of 2020 forced companies to adopt remote work. With no existing provisions for WFH, bizarre ad-hoc setups emerged. A case in point, my roommate was issued two laptops: One for development…

19 points•unmole•over 6 years ago•5 comments
3.

The best USB 2.0 pass in 45 tethering records used 91% of what that bus can usably carry. The same link on a SuperSpeed cable uses 3.6%. USB speed is autonegotiated between host, cable and device, the slowest one wins, and nothing anywhere tells you the cable capped you.

12 points•xbill•22 days ago•1 comment
4.

UPDATE June 2, 2018: USB Restricted Mode did not make it into iOS 11.4. However, in iOS 11.4.1 Beta USB Restricted Mode Has Arrived A new iOS update is about

12 points•MindTooth•over 8 years ago•2 comments
5.

I&#8217;ve been working (for way too long now) on a development platform for future projects using a Teensy 4.0. A few weeks ago I was finally to the stage of creating the PCB. Initially I planned …

7 points•raymii•about 3 years ago•0 comments
6.

Tomu is a super cheap Open Source Hardware 24 MHz ARM computer with 8 KB of RAM and 64 KB of ROM that fits into your USB connector! Of course I had to put Commodore 64 BASIC on it, which can be accessed through the…

6 points•dougluce•about 8 years ago•1 comment
7.
1 points•xabd•6 days ago•0 comments•

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