At Tue, 01 Aug 2006 21:14:24 +0100, Julien Bramary wrote: > > Lee Revell wrote: > > >> > "PCM engine" refers to the hardware's PCM engine, not ALSA's. It's 100% > >> > device dependent - you need to consult the docs for your sound device to > >> > determine how to start the PCM. > >> > > >> > Lee > Thanks, I see now why it starts, I'm doing some inits in my dac in the > open callback... I should do those here in the trigger. Remember that the trigger callback is designed really as a "trigger". That is, it should be executed as shortly as possible. The callback is even in the atomic context within spinlock and irq disablement, so any function that my sleep shall cause lockup. If you need to allocate something, it should be done in either open, hw_params or prepare callback. Only start and stop are done in trigger callback. Takashi ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-devel
