[openbeos] Re: Version of USB
- From: "Manuel Jesus Petit de Gabriel" <freston@xxxxxxxxxxx>
- To: <openbeos@xxxxxxxxxxxxx>
- Date: Sat, 19 Jan 2002 21:04:03 -0800
> Kind of. I would *like* to support 2.0. It all depends on
> a) getting the hardware
That's kind of easy. Just go to a local shop.
> b) getting support, etc
> c) getting documentation
That's also easy. EHCI is no longer classified as confidential information
by
Intel. Go to: http://www.intel.com/technology/usb/download/ehci-r096.pdf
For the USB 2.0 spec itself: http://www.usb.org/developers/docs.html
> d) how drastically much harder it is that 1.1
> e) if 2.0 code wouldn't work with 1.1 devices.
A proper bus manager implementation should be able to handle
both USB1.x busses and USB 2.x busses. However you need
3 different bus implementations: UHCI, OHCI & EHCI.
manuel,
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