From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 1 Aug 2002 22:07:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 1 Aug 2002 22:07:04 -0400 Received: from smtp.castel.nl ([195.85.130.71]:63406 "EHLO mastermail.keyaccess.nl") by vger.kernel.org with ESMTP id ; Thu, 1 Aug 2002 22:07:03 -0400 Content-Type: text/plain; charset=US-ASCII From: Rene Herman To: linux-kernel@vger.kernel.org Subject: Documentation for Pro Audio Spectrum? Date: Fri, 2 Aug 2002 04:15:13 +0200 X-Mailer: KMail [version 1.2] References: <20020802010840.53647.qmail@mail.com> In-Reply-To: <20020802010840.53647.qmail@mail.com> MIME-Version: 1.0 Message-Id: <02080204151303.00253@7ixe4> Content-Transfer-Encoding: 7BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Friday 02 August 2002 03:08, Dave Jones wrote: >>>> Are there any OSS drivers for any particular cards for which we >>>> don't have an equivalent ALSA driver ? >>> >>> At least the Media Vision Pro Audio Spectrum 16 (PAS). An old and >>> rather quirky ISA card, but one that does have particularly decent >>> audio quality; much better then the usual ISA soundblaster[-clones] >>> anyways. As such, some people might grumble a bit if Linux support for >>> it was completely dropped. >>> >>> The ALSA project seems rather set on "no documentation == no driver" >>> and seeing as how Media Vision (and its successor company, the name of >>> which I have now forgotten; it was bought out by creative labs) is out >>> of business and how I've never seen a PAS datasheet "out in the wild" >>> getting ALSA support for this and perhaps other such older hardware >>> could prove troublesome still ... >> >> Bring this up on the kernel list. >> *someone* must still have documentation for this beast. My own PAS16 sports the following chips (may have misidentified their function): MV Spectrum MVD101D - Multimedia controller (native interface) MV Spectrum MVA416 - PCM MV Spectrum MVA508 - Mixer MV Thunder MVD201A - SB Pro compatible part and a 28MHz oscilator (which is I believe relevant since not all PASs use the same clock or something) Note: the PAS16 is not SB Pro compatible, it just /has/ an SB Pro compatible part; with the current OSS drivers you get /dev/{audio,dsp,mixer}{0,1} with 0 being the native PAS16 stuff and, unless you disable it, 1 the SBP stuff The card's quirky in that it doesn't seem to (directly, natively) support a 44100 sampling rate; I had to resample to a supported rate to get it to produce something audible under Linux. The Windows driver seems to compensate for that automagically (and has that "28MHz clock source" as a driver option). Simply catting an .au to /dev/audio0 does let Linus pronounce Linux (in both Swedish and English) though. Rene.