Date: Wed, 05 Mar 2008 17:55:30 +0100 From: Alexander Leidinger <Alexander@Leidinger.net> To: Luigi Rizzo <luigi@onelab2.iet.unipi.it> Cc: freebsd-multimedia@freebsd.org Subject: Re: Driver for Asus P7131 and other SAA-based cards ? (was Re: kbtv2 sound saa.c -- And BETA3 available) Message-ID: <20080305175530.6bnix17f40c8go48@webmail.leidinger.net> In-Reply-To: <20080305090704.GA24762@onelab2.iet.unipi.it> References: <web-15092307@bcgp02.nicmail.ru> <200803040325.09515.danny@ricin.com> <20080304205142.GA64139@onelab2.iet.unipi.it> <200803042313.03409.danny@ricin.com> <20080305070411.GB69758@onelab2.iet.unipi.it> <20080305094350.uvjnrwie8g8ck00w@webmail.leidinger.net> <20080305090704.GA24762@onelab2.iet.unipi.it>
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Quoting Luigi Rizzo <luigi@onelab2.iet.unipi.it> (from Wed, 5 Mar 2008 =20 10:07:04 +0100): > On Wed, Mar 05, 2008 at 09:43:50AM +0100, Alexander Leidinger wrote: >> Quoting Luigi Rizzo <luigi@onelab2.iet.unipi.it> (from Wed, 5 Mar 2008 >> 08:04:11 +0100): >> >> >ok - thanks for all the pointers. I will keep the list posted >> >if i make some progress. >> >> If someone stumbles by chance upon the programming documentation of a >> DVB-S2 or even a DVB-S chip, I'm all ears. But I think all digital >> stuff is locked away because of some legal stuff from holliwood (DRM), >> even if it is about free TV stations. > > As Danny mentioned, there are several DVB boards supported on linux, > and Raaf posted 12-15 months ago a driver for an USB card. Linux code is not really a programming documentation. I assume you =20 understand what I mean. > In terms of device driver support: the linux saa7134 driver has a > lot of code to download the firmware, control tuner, decoder, and various > card configurations. > > I am not sure all these things belong in the kernel - they > are not IO or CPU intensive, and it would be a lot more flexible to > handle them through userland programs that issue appropriate IOCTL > to play with the internal i2c bus or card registers. > > In this respect, I am leaning towards a userland approach rather > than adding a lot of stuff to the current saa.ko driver I agree. Bye, Alexander. --=20 Support bacteria -- it's the only culture some people have! http://www.Leidinger.net Alexander @ Leidinger.net: PGP ID =3D B0063FE7 http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID =3D 72077137
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