Re: [linux-usb-devel] [PATCH] usbmon: add binary interface

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On Wed, Oct 11, 2006 at 04:51:09PM -0400, Alan Stern wrote:
> On Wed, 11 Oct 2006, Pete Zaitcev wrote:
> 
> > On Wed, 11 Oct 2006 19:44:43 +0000, Pavel Machek <[email protected]> wrote:
> > 
> > > Does it mean text interface is now deprecated? Or perhaps ioctl should
> > > be added to text interface too? Or maybe we do not need binary
> > > interface if we allow resizing on text interface?
> > 
> > I haven't reviewed Paolo's patch yet, but with that in mind:
> >  - No, text is not deprecated yet. That is only possible when a simplified
> >    command-line tool is written and distributed (e.g. usbmon(8)).
> >  - No, I do not think an ioctl in debugfs or a text API is a good idea.
> >  - Resizing on text interface magnifies sprintf contribution to CPU burn,
> >    so once we have the binary one, there's only disadvantage and
> >    no advantage in implementing that.
> 
> Would relayfs be a better choice than debugfs for exporting potentially
> large quantities of binary data?

You can put relayfs files in debugfs.  Or at least that was the goal a
long time ago, hopefully it still works...

thanks,

greg k-h
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