Re: patch to shift memory allocations to usb_alloc_urb()

Matthew Dharm <[email protected]>
Newsgroups gmane.linux.usb.devel
Organization One Eyed Alien Networks
Message-ID <[email protected]>
On Mon, Jul 02, 2007 at 10:34:18AM -0400, Alan Stern wrote:
> In theory we could stream the commands and statuses as well, which
> would reduce the overhead somewhat.  Doing this would complicate
> usb-storage a fair amount, and it wouldn't be surprising if a lot of
> devices couldn't handle the higher rates, so I'm not in favor.

(Sorry, I just got back from vacation...)

Streaming commands/data/status together is a bad idea.  I used to get
e-mail pretty regularly from people who were trying this, only to discover
that the devices couldn't handle it.

Technically, it's spec-legal.  Practically, it's a dead duck.

Matt

-- 
Matthew Dharm                              Home: [email protected] 
Maintainer, Linux USB Mass Storage Driver

I'm just trying to think of a way to say "up yours" without getting fired.
					-- Stef
User Friendly, 10/8/1998

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