Hacker News new | ask | show | jobs
by nascentmind 3919 days ago
Isn't USB data lines differential?
1 comments

Yes, but the detection that a cable has been plugged in isn't. Whoops.

To be fair, this isn't really an issue unless your device grounds are likely to have more than a couple of volts difference due to spikes. And that happens very rarely in the home or office.

In industrial settings, however, that's not true.