Leif Lindholm wrote: >On Fri, 2002-04-05 at 04:00, James Courtier-Dutton wrote: > >>I would post the source code of your current driver somewhere (URL). >> > >If you still think so after reading this mail (especially license stuff >at end of mail), I could post a diff somewehere. > >>If the set top box uses the AC97-Controller, alsa09 might already have a >>sound driver for it, but someone might need to add an extra bit of card >>recognition code to get it to work. >> > >It uses the internal AC97-controller of the SC1200 processor >(XpressAUDIO - PCI device 100b:0503). I didn't find anything like that >in the 0.9 code when I browsed through it. The driver also incorporates >some MIDI stuff and such. > >>Also, if you can post to a URL any documents about the set-top-box, >>which would make it easier for people to help you. We might be able to >>recognise which of the current drivers is closest to it from that. >> > >Well - I'm _paid_ to write these drivers :) > >National puts "Confidential" notices on all their documentation, so I >don't think it would be a good idea to post those... > >And since our box is not quite on the market yet, I think my managers >might not like me releasing too much specs. > >So what I can say is about this: > >The audio controller is described pretty well in this message I located >on google: >http://www.alsa-project.org/archive/alsa-howto/msg00312.html > >Different revisions of the box use CS4299 or CS4205 codecs. > >>It would probably be better to get support for the set top box into the >>publically available version of alsa09, so that it will be kept up to >>date with any other changes which might happen in alsa without you >>having to worry about it. >> > >I definitely agree with you about this, however Nationals driver has >some weird "BSD with export restrictions" license attached to it. > >Personally I think they should release the code under GPL so that it can >be integrated with the main project, and I will try to convince them to >do so - but for now I simply don't have time to wait for that. > >To clarify myself: what I really need right now is some hints about what >differs between 0.5 and 0.9 from the driver(programmer)s point of view. > >regards > / > Leif > > I guess you might be out of luck then, as there is currently no documentation on how to write sound card drivers for alsa09.
I think the only way you can possibly compare alsa05 with alsa09 at the moment, is pick simple sound card like the sb16, and compare the card's source code in alsa05 and alsa09. Cheers James _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
