Date: Wed, 11 Aug 2010 12:17:28 +0200 From: Rafal Jaworowski <raj@semihalf.com> To: Hans Petter Selasky <hselasky@c2i.net> Cc: freebsd-arm@freebsd.org, freebsd-current@freebsd.org, freebsd-usb@freebsd.org Subject: Re: [BETA testing] USB 3.0 Super Speed support in FreeBSD Message-ID: <114332B9-A38B-471A-B4FE-F6E210F58233@semihalf.com> In-Reply-To: <201008072144.00002.hselasky@c2i.net> References: <201008072144.00002.hselasky@c2i.net>
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On 2010-08-07, at 21:43, Hans Petter Selasky wrote: > During the last two weeks I've been working hard to get USB 3.0 support added > to the FreeBSD 8+ USB stack. There are a couple of issues left, but right now > the code is in a state were enumeration of USB devices is possible and there > are no dirty hacks :-) > > The XHCI chip, which is the PCI interface for USB 3.0, is a replacement for > OHCI/UHCI/EHCI and can also drive USB Super Speed (4.8 Gbps). I expect there > to be a througput and performance increase when switching over to the XHCI > interface also for 2.0 compatible devices, because it has a better data > queuing mechanism. Nice work! What exactly is the USB3 controller chip you're working with? Rafal
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