Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 7 Oct 2002 19:23:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 7 Oct 2002 19:23:56 -0400 Received: from chello062179036163.chello.pl ([62.179.36.163]:5801 "EHLO pioneer") by vger.kernel.org with ESMTP id ; Mon, 7 Oct 2002 19:23:52 -0400 Date: Tue, 8 Oct 2002 01:33:45 +0200 (CEST) From: Tomasz Rola To: Hell.Surfers@cwctv.net cc: linux-kernel@vger.kernel.org, Tomasz Rola Subject: RE:Re: v.34 rockwell support in 2.4.** In-Reply-To: <06ad129421507a2DTVMAIL4@smtp.cwctv.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2165 Lines: 52 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Mon, 7 Oct 2002 Hell.Surfers@cwctv.net wrote: > No, I think I know the difference, the kernel IS supposed to support hardware modems, as for winmodems, ive written a HSP to help port them, which if anybody wants, mail me, i'll set up a sourceforge site for it soon. > > Cheers, Dean. Well, you are right - the kernel support for winmodem is good if one wants to use ppp et al. On the other hand, it seems that having support for some specialised protocol can produce a lot of overhead in some cases. For example, I once owned very simple Zoltrix, that could do error correction and compression only via the software driver (available only for windows, of course). So, it was almost unusable until I started doing ppp on it. The ppp driver took care about errors and compression - now, with the same futures implemented in lower layers it would be a waste of cpu. So, if you want to do kernel support for winmodem, it would be probably good to remember about ppp. Of course, if you choose to implement full support and emulate v34 or anything else, you would be able to turn the compression (and || or) error correction off either on the emulated 'modem' or in ppp options. Anyway, I think you could have a look at www.linmodems.org. It seems to contain some interesting things. bye T. - -- ** A C programmer asked whether computer had Buddha's nature. ** ** As the answer, master did "rm -rif" on the programmer's home ** ** directory. And then the C programmer became enlightened... ** ** ** ** Tomasz Rola mailto:tomasz_rola@bigfoot.com ** -----BEGIN PGP SIGNATURE----- Version: PGPfreeware 5.0i for non-commercial use Charset: noconv iQA/AwUBPaIZ3xETUsyL9vbiEQKPTQCgjkpc5XOnc2Odk99KjxPueMNc5WMAn3L3 cywKCdIoTjERP9ET9lkwMBhC =ErB6 -----END PGP SIGNATURE----- - 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/