Dear Truong, Am Donnerstag, den 05.08.2010, 20:11 -0700 schrieb Truong Hoang: > I have a problem that I need help from the ALSA experts. > > I want to write an alsa shim .ko which creates multiple cards. Let's assume > 2 cards. My program calls > snd_card_create() and snd_card_register() two times. I also has 1 PCM for > each of these card. > > After install the .ko to the kernal, I see the /proc/asound has card0 and > card1. But the "aplay -l" sees only card0. The snd_card_next() only returns > 0 (i.e. 1 card). > What did I miss in my program? The /dev/snd/ has only hwC0D0 and pcmD0C0p. > > I am a beginner in ALSA, so I appreciate if you can give the explanation in > detail. please attach your source code so the experts – not me – can point out what is missing. Thanks, Paul
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