Re: [linux-audio-dev] PCM Device Enumeration

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Subject: Re: [linux-audio-dev] PCM Device Enumeration
From: Paul Davis (pbd_AT_op.net)
Date: Sat May 11 2002 - 02:21:35 EEST


>OK, help me with the philosophy here then. If the intent is to discourage the
>use of interface IDs of the form 'hw:0,0', then why does the snd_pcm_open()
>call *require* names in this form?

how about: "it doesn't" ?

if you put this into your ~/.asoundrc file:

pcm.my_funny_friendly_familiar_name {
        type hw
        card 0
        device 0
}

you can then call

     snd_pcm_open ("my_funny_friendly_familiar_name", ...);

OR:
     snd_pcm_open ("hw:0,0", ...);

and get the same effect from them both.

perhaps you don't realize this - i can't say i blame you. its one of
the most fundamental aspects of using ALSA, but its not prominent in
any of the docs or the website.

--p


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