linux-kernel - Re: [PATCH] usbmon: add binary interface

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Message-Id: <20061011134351.0c79445a.zaitcev@redhat.com>
Date:	Wed, 11 Oct 2006 13:43:51 -0700
From:	Pete Zaitcev <zaitcev@...hat.com>
To:	Pavel Machek <pavel@...e.cz>
Cc:	Paolo Abeni <paolo.abeni@...il.it>, gregkh@...e.de,
	linux-kernel@...r.kernel.org,
	linux-usb-devel@...ts.sourceforge.net, zaitcev@...hat.com
Subject: Re: [PATCH] usbmon: add binary interface

On Wed, 11 Oct 2006 19:44:43 +0000, Pavel Machek <pavel@...e.cz> 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.

-- Pete
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