[tip:x86/debug] usb/doc: Add document for USB3 debug port usage

Commit-ID: 1b326277798aa820c1043617786609b9bb4bee78 Gitweb: http://git.kernel.org/tip/1b326277798aa820c1043617786609b9bb4bee78 Author: Lu Baolu AuthorDate: Tue, 21 Mar 2017 16:01:33 +0800 Committer: Ingo Molnar CommitDate: Tue, 21 Mar 2017

[tip:x86/debug] usb/doc: Add document for USB3 debug port usage

Commit-ID: 1b326277798aa820c1043617786609b9bb4bee78 Gitweb: http://git.kernel.org/tip/1b326277798aa820c1043617786609b9bb4bee78 Author: Lu Baolu AuthorDate: Tue, 21 Mar 2017 16:01:33 +0800 Committer: Ingo Molnar CommitDate: Tue, 21 Mar 2017 12:30:17 +0100 usb/doc: Add document for USB3