From mboxrd@z Thu Jan  1 00:00:00 1970
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To: 9fans@9fans.net
From: Richard Miller <9fans@hamnavoe.com>
Date: Tue, 22 Feb 2011 17:29:03 +0000
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Subject: Re: [9fans] usb ohci - one more question
Topicbox-Message-UUID: b3042f26-ead6-11e9-9d60-3106f5b1d025

> (note that the std would call each simplex chan an "endpoint", but
> you can pair two of them and consider them an endpoint when they are duplex)

As an example, I have a usb device which presents both an input
endpoint #2 and an output endpoint #2.  The standard would treat these
as separate endpoints which have the same endpoint number.  The Plan 9
driver treats them (sensibly I think) as a single bidirectional endpoint.