Hi I am trying to trace the Audio data from usb bus. in kernel: dump data in retire_capture_urb() ,found data format is like: AABB 0000 CCDD 0000 ; but in alsa library , dump data in snd_pcm_mmap_begin(),the "0000" is cut,only "AABB CCDD", Do you know when and where those "0000" is cut? btw,use mmap method map dma_area to user space; and use snd_pcm_readi to get audio data; Thank you very very much. Best Regards, Zero _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
