Standard PCM name?

[Takashi Iwai <tiwai@suse.de>]

Hi,

on alsa-lib 1.0.8, I redefined the "default" PCM so that the
card-specific definition can override.  Together with this change,
I added a feature to pass the card number for this pcm.
i.e.
	aplay -Ddefault:1 foo.wav

will play with the default PCM definition on the second card.

I think this stuff itself, the card-specific default PCM definition,
is nice.  But it (e.g. default:1) won't work always if user overrides
the default pcm via ~/.asoundrc.

So, I'd like to propose a new set of PCM definition.

- "default" doesn't take arguments (e.g. card number) but it defines
  the system default one.  There is only one "default" for a system.

- A new PCM, "std", is defined for each card.  User shouldn't override
  this definition.  When no card-specific definition is provided, it's
  defined as plughw:$CARD,$DEV.

- The default "default" is std:0.

The merit to split "default" and "std" is that std:X should always
work regardless how default PCM is defined.


Any comments?  Better names?


Takashi


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