On Thu, 11 Nov 2010, Irfan Shaikh wrote: > Hello All, > > > 1) My understanding : snd_pcm_writei() takes the allocated buffer > from applications and passes the buffer beneath to the ASLA library and > then to the ALSA driver for rendering Audio. > > 2) Query 1 : Instead of me allocating the buffer in ALSA > application and passing the pointer in snd_pcm_writei, Can ALSA allocate > the buffer and give to my application, so that i can copy my data into > it. > > 3) Query 2 : Is there any wayto diirectly get hardware ALSA buffer > from the ALSA driver to application so that i can copy PCM data to this > buffer directly. > If not, is there any way can we do this ? Read alsa-lib documentation. snd_pcm_mmap_begin/snd_pcm_mmap_commit. Jaroslav ----- Jaroslav Kysela <perex@xxxxxxxx> Linux Kernel Sound Maintainer ALSA Project, Red Hat, Inc. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
