Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 7 Feb 2002 15:12:14 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 7 Feb 2002 15:11:57 -0500 Received: from zikova.cvut.cz ([147.32.235.100]:19987 "EHLO zikova.cvut.cz") by vger.kernel.org with ESMTP id ; Thu, 7 Feb 2002 15:11:35 -0500 From: "Petr Vandrovec" Organization: CC CTU Prague To: Patrick Mochel Date: Thu, 7 Feb 2002 21:11:10 +0100 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: [PATCH] read() from driverfs files can read more bytes CC: X-mailer: Pegasus Mail v3.50 Message-ID: <1126CC346B32@vcnet.vc.cvut.cz> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On 7 Feb 02 at 10:27, Patrick Mochel wrote: > Concerning reading/writing from offsets, it's up to the drivers for them > to either support it or not. In the files I've done so far, I return 0 if > show() is called with an offset. Which will give different results if you > read byte-by-byte or an entire chunk. > > It makes the callbacks simpler, but it is not technically correct. What about extremelly nice stuff Al Viro made for us in fs/seq_file.c ? It made putting stuff into procfs really easy... Petr Vandrovec vandrove@vc.cvut.cz - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/