On 02-Mar-2004 Manuel Jander wrote: >> Yes. Every driver using SG must do this. Look into bt87x.c or >> via82xx.c for examples. > > Well, i guess in that case the period size loses any relevance in > terms of efficiency.
Efficiency about what ? If the hardware can be programmed to use any period size, then the application is free to choose the size it prefers. It's not a bad thing. NB: the interrupt should be generated at the end of the period, not at the end of each block, eg. when it crosses the page boundary. > Is there any gain if DMA chunks and period sizes are > related in any way ? No, unless the hardware benefits from it. -- Giuliano. ------------------------------------------------------- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps & Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id=1356&alloc_id=3438&op=click _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
