On Fri, 2016-10-21 at 15:17 -0600, Jonathan Corbet wrote: > On Thu, 20 Oct 2016 15:15:00 +0200 > Oliver Neukum <oneukum@xxxxxxxx> wrote: > > > It does no good to mention The 2.4 kernel series and neglect > > USB 3.x and XHCI. Also with type C and micro/mini USB we better > > not talk about the shape of connectors. > > ...except that USB 2 connectors will be with us for some time yet. I'm all > for updating the documentation, but stuff like this: > > > <para>That master/slave asymmetry was designed-in for a number of > > reasons, one being ease of use. It is not physically possible to > > - assemble (legal) USB cables incorrectly: all upstream "to the host" > > - connectors are the rectangular type (matching the sockets on > > - root hubs), and all downstream connectors are the squarish type > > + mistake upstream and downstream or it does not matter with a type C > > + plug > > seems to me like it loses information. Greg, do you have an opinion on the > changes here? I'll apply this if it's OK with you. It absolutely loses information, because that information is no longer true. We have micro and mini USB downstream and the upstream is usually square but not universally true since On-the-Go. Regards Oliver -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
