Date: Fri, 11 Sep 2015 17:49:04 +0200 From: Polytropon <freebsd@edvax.de> To: Arthur Chance <freebsd@qeng-ho.org> Cc: Ernie Luzar <luzar722@gmail.com>, freebsd-questions <freebsd-questions@freebsd.org> Subject: Re: USB physical ports Message-ID: <20150911174904.906b2dbd.freebsd@edvax.de> In-Reply-To: <55F2F4C0.4050103@qeng-ho.org> References: <55F1A507.70402@gmail.com> <20150911142906.3da7c16b.freebsd@edvax.de> <55F2F4C0.4050103@qeng-ho.org>
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On Fri, 11 Sep 2015 16:35:28 +0100, Arthur Chance wrote: > On 11/09/2015 13:29, Polytropon wrote: > > On Thu, 10 Sep 2015 11:43:03 -0400, Ernie Luzar wrote: > >> I have 6 physical ports on my PC box. The boot time messages seem to say > >> that one of those ports is 480Mbps High Speed USB v2.0. > >> > >> How do I determine which physical USB port is the 480Mbps High Speed port? > > > > Usually there are two ways: > > > > First, there is the visual inspection of the plastic bar inside > > the ports. They are color coded black, white, or blue, which > > refers to USB 1, 2, or 3 respectively. > > Black and white can be either USB 1 or USB 2 according to Wikipedia and > my experience. I've got both black and white USB 2.0 ports on my various > bits of kit and apparently some Lenovo laptops use grey for USB 2. Yes, I've noticed that too. I have a computer with white USB sockets at the front - one is 1.0, one is 2.0, and black USB sockets on the rear - all are 2.0. It's not very helpful... > Usually USB 3.0 ports are blue, unless they're yellow, red or orange. > That can variously mean always on and/or high power/fast charge > depending on manufacturer. Yes, those colors indicate the capability of higher current, there's a better power regulator (more than 500 mA, if I remember correctly). > Standards, don't you just love them. Now you've got n+1 problems. ;-) -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...
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