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

[Johannes Erdfelt]

On Wed, Sep 19, 2001, David Brownell <[EMAIL PROTECTED]> wrote:
> If the driver submits a group of requests to of
> sizes 16 bytes, 10 bytes, 14 bytes ... I'd expect
> the driver to know the device would handle that!
> And to be responsible for recovering in any case
> where it couldn't.
> 
> The USB transfer model is "chunky", and it'd
> be error-prone (IMO) to try to present any
> kind of non-chunky model to drivers.

Absolutely. I'm just not sure that the SCSI layer will do that and more
importantly if all USB storage devices will handle it gracefully.

USB storage being the obvious first driver to take advantage of
scatter/gather.

JE


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