From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753965AbXDSXNl (ORCPT ); Thu, 19 Apr 2007 19:13:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753947AbXDSXNl (ORCPT ); Thu, 19 Apr 2007 19:13:41 -0400 Received: from mail-in-13.arcor-online.net ([151.189.21.53]:39595 "EHLO mail-in-13.arcor-online.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753971AbXDSXNj (ORCPT ); Thu, 19 Apr 2007 19:13:39 -0400 Subject: Re: [linux-dvb] Re: [video4linux-cvs] [hg:v4l-dvb] Add support for Opera S1- DVB-USB From: hermann pitton To: Manu Abraham Cc: Markus Rechberger , Michael Krufky , linux-dvb@linuxtv.org, linux-kernel@vger.kernel.org In-Reply-To: <4627F283.6030009@gmail.com> References: <4627858A.6060209@linuxtv.org> <4627B959.8070601@freenet.de> <4627D407.10105@linuxtv.org> <1177015513.6002.40.camel@matwk009568.brasiltelecom.intra.corp> <4627D74A.4090304@gmail.com> <1177019927.3166.8.camel@pc06.localdom.local> <4627F076.4050105@gmail.com> <4627F283.6030009@gmail.com> Content-Type: text/plain; charset=utf-8 Date: Fri, 20 Apr 2007 01:16:50 +0200 Message-Id: <1177024610.4513.9.camel@pc06.localdom.local> Mime-Version: 1.0 X-Mailer: Evolution 2.6.3 (2.6.3-2.fc5) Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Am Freitag, den 20.04.2007, 02:51 +0400 schrieb Manu Abraham: > Markus Rechberger wrote: > > On 4/20/07, Manu Abraham wrote: > >> hermann pitton wrote: > >> > Am Freitag, den 20.04.2007, 00:55 +0400 schrieb Manu Abraham: > >> >> Mauro Carvalho Chehab wrote: > >> >>> Em Qui, 2007-04-19 às 16:41 -0400, Michael Krufky escreveu: > >> >>>> Marco Gittler wrote: > >> >>>>> this patch has applied the hints from mkrufky (dvb_attach, > >> >>>>> firmware-naming) > >> >>>>> and also one working rewrite of the i2c addresses stuff to fit the > >> >>>>> kernel i2c reqs. > >> >>>>> > >> >>>>> Signed-off-by: Marco Gittler > >> >>>>> diff -r c8b73ec18b42 linux/drivers/media/dvb/dvb-usb/opera1.c > >> >>>>> --- a/linux/drivers/media/dvb/dvb-usb/opera1.c Thu Apr 19 > >> 12:04:50 > >> 2007 -0300 > >> >>>>> +++ b/linux/drivers/media/dvb/dvb-usb/opera1.c Thu Apr 19 > >> 20:38:01 > >> 2007 +0200 > >> >>>>> @@ -25,6 +25,13 @@ > >> >>>>> #define REG_20_SYMBOLRATE_BYTE1 0x20 > >> >>>>> #define REG_21_SYMBOLRATE_BYTE2 0x21 > >> >>>>> > >> >>>>> +#define ADDR_C0_TUNER (0xc0>>1) > >> >>>>> +#define ADDR_D0_PLL (0xd0>>1) > >> >>>>> > >> >>>> I don't like these two #define's. These i2c addresses need only be > >> >>>> specified once, in the config structs / frontendfoo_attach calls for > >> the > >> >>>> tuner / demod. > >> >>>> > >> >>>> Better to just put them in as constants like all of the other dvb > >> drivers. > >> >>> I prefer the way it is. We should really avoid having magic numbers > >> >>> inside the code. The alias here helps to know that 0x60 is tuner > >> addres > >> >>> and 0x68 the pll. > >> >> > >> >> Following a project's coding styles and conventions is "respecting" a > >> >> project > >> >> > >> >> Manu > >> >> > >> > > >> > Hi, > >> > > >> > the other natural place for this should be the LKML to get more _good_ > >> > arguments, instead of hanging soon in some "respect" stuff again. > >> > >> > >> DVB drivers generally have device addresses such as tuner_addresses and > >> demod_adresses defined in a config struct least to prevent them from > >> being global, wherever the header is included, since the very same > >> device can have multiple addresses and so on, which are non-probable > >> since being behind a repeater which is switched by a demod (private) and > >> hence. > >> > >> Those are some of the reasons to follow a certain coding > >> style/conventions. They are _not_ for fun. > >> > > > > cat *priv.h says something else too... > > there are also many global register defines in DVB drivers, they just > > don't include the register value in the define name. > > > *_priv.h from what i understand means private .. i don't know what you > make out from that. > > > HTH, > Manu ;) That means that I had to post the actual headers to every single tester on a distro kernel, and we got them only rarely on hybrid devices for several years and that for I always did it. Thanks again ;) Hermann