From mboxrd@z Thu Jan  1 00:00:00 1970
From: James Courtier-Dutton <James@superbug.co.uk>
Subject: Re: Re: [Alsa-user] sound blaster name
Date: Sun, 03 Jul 2005 20:56:03 +0100
Message-ID: <42C842D3.90603@superbug.co.uk>
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To: matthieu castet <castet.matthieu@free.fr>
Cc: Lee Revell <rlrevell@joe-job.com>, alsa-devel <alsa-devel@lists.sourceforge.net>
List-Id: alsa-devel@alsa-project.org

matthieu castet wrote:
> Lee Revell wrote:
> 
>> On Sun, 2005-07-03 at 15:19 +0200, matthieu castet wrote:
>>
>>> I there an easy way to know if the .sblive51 flag is needed ?
>>> Does it is needed only for 3G SB card  (SBxxx version or those marked
>>> as 5.1) ?
>>
>>
>>
>> I think it's need for any SBLive! (not Audigy) that has an analog
>> center/LFE output.
>>
>> Maybe you could extract this information from the kX driver.
>>
> on opencreative driver they use :
> 
> * 5.1: Enable the additional AC97 Slots and unmute extra channels on
> AC97 codec */
>                 if (codec->codec_read(codec, AC97_EXTENDED_ID) & 0x0080){
>                         printk(KERN_INFO "emu10k1: SBLive! 5.1 card
> detected\n");
>                         sblive_writeptr(card, AC97SLOT, 0, AC97SLOT_CNTR
> | AC97SLOT_LFE);
>                         codec->codec_write(codec, AC97_SURROUND_MASTER,
> 0x0);
>                 }
> 
> It correspond to AC97_EA_SDAC.
> I don't know if it is a safe way...
> 
> 
> Matthieu
> 

It is not a safe way of detecting it.
The approach I am going to take is mark each entry in the source code as
tested and the email address of someone with the card.
Then, over time we will have eventually tested all of them and also have
a contact email address if it needs retesting.

James


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