M-Audio Revolution 7.1

M-Audio Revolution 7.1

[Bruce Cooper]

Hello,

It is my understanding that Alsa supports most of the cards from M-Audio
that use the Envy24 chipset, but not the new Revolution 7.1.  I would
like to help.  I have the skills to do the work, but am fairly new to
device driver writing.

Is there anyone out there who is already working on support for the
Revolution?  If so, please contact me.  I would also be interested in any
technical information that can be provided for the card.

Thanks.




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Re: M-Audio Revolution 7.1

[Takashi Iwai]

At Mon, 10 Feb 2003 11:18:27 +0800 (WST),
Bruce Cooper wrote:
> 
> Hello,
> 
> It is my understanding that Alsa supports most of the cards from M-Audio
> that use the Envy24 chipset, but not the new Revolution 7.1.  I would
> like to help.  I have the skills to do the work, but am fairly new to
> device driver writing.

is this envy24 or envy24HT?
i've sees some new cards equipped with envy24HT.

> Is there anyone out there who is already working on support for the
> Revolution?  If so, please contact me.  I would also be interested in any
> technical information that can be provided for the card.

i'll try to contact with m-audio people...


Takashi


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Re: M-Audio Revolution 7.1

[Takashi Iwai]

At 10 Feb 2003 19:57:21 +0800,
Bruce Cooper wrote:
> 
> Hi,
> 
> I just checked, and it is the envy24HT, as you predicted.  The chip is
> also marked ICE1712A instead of ICE1712.  Oh well, that will make life
> more difficult.  I still want to do it though.

can you see which codec chips on the board?

if it's an ac97 codec (or multi ac97 codecs), then we'll be able to
add the support without difficulties.

if it's another types and connected over i2s (and if the codec chips
need proper initialization), it would be tough - we need to know the
communcation protocol between envy24ht and the codecs (most likely
over i2c).


ciao,

Takashi


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Re: M-Audio Revolution 7.1

[Bruce Cooper]

I have pulled the card out now

It has the following chips:

main chip marked ICEnsemble ENVY25HT ICE1724 (where did I get 1712A
from?) 0151CD 2IA0002104.  

A chip in a socket, which I assume is the rom for the card, but is has
had something written on it (RC with a red line through it) which
obscures the part name.  

AKM AK4355VF 042A0224N
AKM 438IVT IN226
AKM 5380VT 2N210
1117M3 330224
24AC NO6A

None of those seem like they would be an AC97 codec.  I have also had a
look at the specifications for the card, and it does not mention AC97,
which normally happens.

On Mon, 2003-02-10 at 20:13, Takashi Iwai wrote:
> At 10 Feb 2003 19:57:21 +0800,
> Bruce Cooper wrote:
> > 
> > Hi,
> > 
> > I just checked, and it is the envy24HT, as you predicted.  The chip is
> > also marked ICE1712A instead of ICE1712.  Oh well, that will make life
> > more difficult.  I still want to do it though.
> 
> can you see which codec chips on the board?
> 
> if it's an ac97 codec (or multi ac97 codecs), then we'll be able to
> add the support without difficulties.
> 
> if it's another types and connected over i2s (and if the codec chips
> need proper initialization), it would be tough - we need to know the
> communcation protocol between envy24ht and the codecs (most likely
> over i2c).
> 
> 
> ciao,
> 
> Takashi
> 


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Re: M-Audio Revolution 7.1

[Takashi Iwai]

At 10 Feb 2003 20:43:21 +0800,
Bruce Cooper wrote:
> 
> I have pulled the card out now
> 
> It has the following chips:
> 
> main chip marked ICEnsemble ENVY25HT ICE1724 (where did I get 1712A
> from?) 0151CD 2IA0002104.  
> 
> A chip in a socket, which I assume is the rom for the card, but is has
> had something written on it (RC with a red line through it) which
> obscures the part name.  
> 
> AKM AK4355VF 042A0224N

this is the codec chip (192kHz/24bit, 6 channels).

	http://www.asahi-kasei.com/akm/en/product/ak4355/ek4355.pdf


Takashi


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Re: M-Audio Revolution 7.1

[Bruce Cooper]

Umm, it is supposed to be an 8 channel card, so where are the other two
coming from?  One of the other chips?  I will have a look around the web
site and see what I can find.

Thanks!

On Mon, 2003-02-10 at 20:52, Takashi Iwai wrote:
> At 10 Feb 2003 20:43:21 +0800,
> Bruce Cooper wrote:
> > 
> > I have pulled the card out now
> > 
> > It has the following chips:
> > 
> > main chip marked ICEnsemble ENVY25HT ICE1724 (where did I get 1712A
> > from?) 0151CD 2IA0002104.  
> > 
> > A chip in a socket, which I assume is the rom for the card, but is has
> > had something written on it (RC with a red line through it) which
> > obscures the part name.  
> > 
> > AKM AK4355VF 042A0224N
> 
> this is the codec chip (192kHz/24bit, 6 channels).
> 
> 	http://www.asahi-kasei.com/akm/en/product/ak4355/ek4355.pdf
> 
> 
> Takashi
> 


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Re: M-Audio Revolution 7.1

[Paul Davis]

>i'll try to contact with m-audio people...

when i was at NAMM, i went up and personally thanked the m-audio guys
for creating devices that we could use under linux. i told them that
although i generally recommend the hammerfall series to people with
large channel requirements, anytime someone wanted a smaller number of
channels, i always recommended the delta 1010. the reps there hugged
me!

:))

--p


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Re: M-Audio Revolution 7.1

[Takashi Iwai]

At Mon, 10 Feb 2003 08:55:25 -0500,
Paul Davis wrote:
> 
> >i'll try to contact with m-audio people...
> 
> when i was at NAMM, i went up and personally thanked the m-audio guys
> for creating devices that we could use under linux. i told them that
> although i generally recommend the hammerfall series to people with
> large channel requirements, anytime someone wanted a smaller number of
> channels, i always recommended the delta 1010. the reps there hugged
> me!

when i met m-audio guys at the last AES Munich, we talked about the
professional applications on linux.  they mentioned immediately ardour
:)


Takashi


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