Date: Wed, 24 Sep 1997 22:58:24 -0700 From: Amancio Hasty <hasty@rah.star-gate.com> To: Luigi Rizzo <luigi@labinfo.iet.unipi.it> Cc: multimedia@FreeBSD.ORG Subject: Re: snd970924.tgz available... Message-ID: <199709250558.WAA00813@rah.star-gate.com> In-Reply-To: Your message of "Wed, 24 Sep 1997 14:04:20 %2B0200." <199709241204.OAA21469@labinfo.iet.unipi.it>
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Hi, I have been testing your sound driver for about 1/2 hour. Overall vat seems to work rather well however I am getting a slight subtle click on the background. I think is the recording generating the click because I just did "cat /dev/audio0" and managed to hear the click actually "cat file.au >/dev/audio0" also generates the click. Also I hear a high freguency pitch on the background. Hmmm... I wonder if it is the card . Now the good news , the driver managed to recognize the card the first time 8) Probing for PnP devices: CSN 1 Vendor ID: CSC4236 [0x3642630e] Serial 0xffffffff mss_attach <CS4236>1 at 0x530 irq 11 dma 3:1 flags 0x11 pcm1 (cs423x <CS4236> sn 0xffffffff) at 0x530 irq 11 drq 3 flags 0x11 id 12 Then later on I got: pcm0 at 0xffff irq -1 drq -1 mem 0x0 flags 0x0 en 1 confl 0 My config line is: controller pnp0 # this is required for PnP support device pcm0 at isa ? port? tty vector pcmintr My card is an AcerOpen AW32 Pro Wave Table Audio Card about ($60). It has a CS4236 in it. ------- Not ready yet to dump my GUS PnP 8) Regards, Amancio >From The Desk Of Luigi Rizzo : > As the subject says, a new snapshot of the sound & pnp code is > available at the following URL: > > http://www.iet.unipi.it/~luigi/snd970924.tgz > http://www.iet.unipi.it/~luigi/pnp970924.tgz > > This snap is primarily targeted at 2.2.X users, since it incorporates > some minor fixes which are already in -current, and _does not_ include > the select->poll changes which have made their appeareance in 3.0 > > If previous snaps worked fine for you then you don't need to upgrade. > If they did not, then you might upgrade if: > > - you have a non-pnp SB clone which was not recognized; > - you have a CS4236 or CS4237, PnP, which was not recognized; > - you have a GusPnP _and_ are willing to make changes to the code! > > For those experiencing 'clicks' in the output with the SB16: I am not > sure, but a possible explaination is that, despite the SB16 has a > playout FIFO, it only generates an interrupt when the FIFO is empty, > thus making it useless... I am saying this because the clicks cannot > be heard on the CS423x (except perhaps at the highest speeds). The > CS423x has a FIFO, but always tries to keep the playout FIFO full, > giving plenty of time to respond to interrupts and making operation > in normal DMA mode possible. > > Cheers > Luigi > -----------------------------+-------------------------------------- > Luigi Rizzo | Dip. di Ingegneria dell'Informazione > email: luigi@iet.unipi.it | Universita' di Pisa > tel: +39-50-568533 | via Diotisalvi 2, 56126 PISA (Italy) > fax: +39-50-568522 | http://www.iet.unipi.it/~luigi/ > _____________________________|______________________________________
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