Re: [linux-usb-devel] URB with scatter-gather?

[Matthew Dharm]

On Tue, Sep 18, 2001 at 01:47:52PM -0700, David Brownell wrote:
> > > Should be no different.  Though the "multiples of endpoint size"
> > > restriction seems unnecessary to me ... "short packet" handling for
> > > each of a series of URBs should work transparently.  The HCDs
> > > already have the infrastructure to do that.
> > 
> > Not really, since for lots of devices, short packets mean something
> > special if we send one.
> 
> I think you were assuming something different about s/g semantics
> than I was, then.  If the driver chooses to put a short packet into
> an s/g list, I expected it did so to get that special effect.  Perhaps
> you were thinking it was expecting the HCD to coalesce some
> buffers?  How about just returning EINVAL?  :)

I think he means short packet in, not short packet out.

Matt

-- 
Matthew Dharm                              Home: [EMAIL PROTECTED] 
Maintainer, Linux USB Mass Storage Driver

Hey Chief.  We've figured out how to save the technical department.  We 
need to be committed.
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User Friendly, 1/22/1998

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