On Mon, Jun 22, 2009 at 12:43:52PM -0400, Jon Smirl wrote: > On Mon, Jun 22, 2009 at 12:27 PM, James > > DMA transfers on sound cards are a ring buffer. There is no automatic > > stop feature. > I don't about all hardware, but all of the hardware I've worked with > works both ways, ring or stop at the end. > DMA transfers for network packets wouldn't work in the ring buffer > model, you need the stop at the end capability. Remember, you're working with a general purpose SoC which shares the DMA controller with a large selection of other hardware. A DMA controller that's part of a sound device and can't be used in anything else doesn't need to worry about any other applications. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
