linux-kernel - Re: USBIP protocol

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Message-ID: <20080904024120.GA3371@kroah.com>
Date:	Wed, 3 Sep 2008 19:41:20 -0700
From:	Greg KH <greg@...ah.com>
To:	Matthew Wilcox <matthew@....cx>
Cc:	linux-usb@...r.kernel.org, bgmerrell@...ell.com,
	hirofuchi@...rs.sourceforge.net, linux-kernel@...r.kernel.org,
	usbip-devel@...ts.sourceforge.net
Subject: Re: USBIP protocol

On Wed, Sep 03, 2008 at 01:43:49PM -0600, Matthew Wilcox wrote:
> On Wed, Sep 03, 2008 at 08:57:06AM -0700, Greg KH wrote:
> > > I have no experience with isosynchronous transactions, nor interrupt
> > > transactions, so I decline to define them at this moment.
> > 
> > Both of those are necessary, so you are going to have to define them
> > (mice/keyboards use interrupt and audio uses iso, so it is very common,
> > and easy to test for.)
> 
> I don't think I have any usb audio devices.  Do you have any spares I
> could borrow from you at Kernel Summit?

I only have one left, and I need it for testing, sorry.  There are quite
a few cheap usb audio headsets out there if you just want to buy your
own.

> > > I've given up on the big/little endian thing.  Network protocols are
> > > traditionally BE, USB is LE and it can encapsulate SCSI which is BE again.
> > 
> > What do you mean, you are just going to stick with BE?
> 
> I'm just going to use BE in the protocol, even though it's encapsulating
> a LE protocol.

That's fine with me.

thanks,

greg k-h
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