Two questions.

First: Is it possible to determine the maximum number of channels for a
sound card that is in use by another application?  My method for
detecting the number of channels is:

- open the pcm
- use the hw_params API to determine the number of channels

But if another application has the sound card open, it cannot be opened
again and therefore the hw_params API cannot be used!

Second question: what is the meaning and intended use of the
card,device,subdevice design of ALSA?  I thought this would become clear
to be once I bought a multichannel card, but now I own an Audiophile
2496 and it's still a mystery.

"Card" I understand -- I can hold a card in my hand.  But what is a
"device" and a "subdevice?"  When are they ever used, and how?

Josh


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