On 12 Feb 2002, [EMAIL PROTECTED] wrote:
> Hi,
>
> > > Since your card was recognized as STDSP24, it means that both cards
> > > have the same sub vendor/device id. Thus it's difficult to guess
> > > which chip is. Perhaps trying to detect ak4524 at first, then one
> > > can recognize it as DSP24 Value or not.
> >
> > I asked Hoontech about that too.
>
> It is not possible to distinguish between a DSP24 Value and a DSP24 card in
> software. Also you cannot detect the converter on the card (as it is not
> needed).
>
> The DSP24 PCI card provides a interface that is called "H-BUS" and allows you
> to connect several external boxes (ADC, DAC, Digital I/O interfaces, etc.) to
> one card. Via GPIO you can (and need to) controll this interface. Up to four
> external boxes with up to 4 stereo input channels on each box can be adressed
> at the same time. You can patch any of these stereo inputs to the Envy24 input
> by GPIO during runtime. This allows you for example to use a DS2000 (ADAT/TDIF
> interface) and a ADC&DAC2000 (analog I/O) at the same time and to switch
> between the inputs when needed. An introduction to this can be found on our
> website: check www.staudio.com -> Service -> Knowledge Base -> DSP24 -> H-BUS.
>
> The DSP24 Value simulates this by connecting the ADC on the card virtually as
> box number 1, input 1/2.
Box number 1 means the first from four? (Sorry, but addressing is from 0
to 3). Currently, ALSA initializes only first box at address zero.
> > The DAC & ADC volume
> > don't seem to work though.
>
> The hardware does not provide any function to change the input or output level
> of the analog I/O.
Thanks for clarification.
Jaroslav
-----
Jaroslav Kysela <[EMAIL PROTECTED]>
SuSE Linux http://www.suse.com
ALSA Project http://www.alsa-project.org
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