From: Richard Miller <9fans@hamnavoe.com>
To: 9fans@9fans.net
Subject: Re: [9fans] usb ohci - one more question
Date: Tue, 22 Feb 2011 17:29:03 +0000 [thread overview]
Message-ID: <aff99233b4890799cad29fc1894772e5@hamnavoe.com> (raw)
In-Reply-To: <AANLkTinjH-qm4zdYkdPcFg3vZxiThMA1UrSs=Qt9KPgc@mail.gmail.com>
> (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.
next prev parent reply other threads:[~2011-02-22 17:29 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-22 17:02 rod
2011-02-22 17:17 ` Francisco J Ballesteros
2011-02-22 17:29 ` Richard Miller [this message]
2011-02-22 17:39 ` rod
2011-02-22 18:56 ` Francisco J Ballesteros
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