From mboxrd@z Thu Jan 1 00:00:00 1970 From: Richard Cochran Subject: Re: [RFC][PATCH 0/3] net_tstamp: Add SIOCGHWTSTAMP ioctl Date: Thu, 14 Nov 2013 08:41:19 +0100 Message-ID: <20131114074118.GC4908@netboy> References: <1384396635.29151.36.camel@bwh-desktop.uk.level5networks.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: David Miller , netdev@vger.kernel.org, linux-net-drivers@solarflare.com To: Ben Hutchings Return-path: Received: from mail-wg0-f46.google.com ([74.125.82.46]:47528 "EHLO mail-wg0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751132Ab3KNHlb (ORCPT ); Thu, 14 Nov 2013 02:41:31 -0500 Received: by mail-wg0-f46.google.com with SMTP id x12so1448944wgg.1 for ; Wed, 13 Nov 2013 23:41:29 -0800 (PST) Content-Disposition: inline In-Reply-To: <1384396635.29151.36.camel@bwh-desktop.uk.level5networks.com> Sender: netdev-owner@vger.kernel.org List-ID: On Thu, Nov 14, 2013 at 02:37:15AM +0000, Ben Hutchings wrote: > SIOCSHWTSTAMP returns the real configuration to the application > using it, but there is currently no way for any other > application to find out the configuration non-destructively. I guess that the reasoning behind the original interface is that an application only wants to know the settings when it needs a particular setting in order to operate correctly. This would make the query call pointless, since the application might as well just go ahead and set the values that it needs. Do you have a particular use case in mind? Thanks, Richard