[CentOS] USB 3.0 Driver

Mon Sep 8 15:08:07 UTC 2014
Matt <matt.mailinglists at gmail.com>

> On Fri, Sep 5, 2014 at 4:36 PM, Matt <matt.mailinglists at gmail.com> wrote:
>> Tried it and CentOS 6 did not seem to find it.  Anyone know of a USB
>> 3.0 card that does work with Centos 6.x?
> I've used a variety of no-name cards with the NEC (now Renesas)
> uPD72020x series host adapter chips, and they've all worked fine.

The unit I tried had the NEC d720201 701 chip and CentOS 6 did not
seem to find it.  Any chance CentOS 7 will?

> I'd steer clear of the "no additional power connection needed" cards;
> in my experience they can't supply the maximum power the ports may
> require (5V at 900mA per port, i.e., 4.5W per port, 18W total for a
> four-port card).  Proper USB 3.0 cards have a disk drive power
> connector for the power required.  In principle it's possible for a
> PCIe USB host adapter to have a switching regulator to provide
> sufficient USB power from the +12V supply rail, but, I have yet to see
> one that does.
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