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and the sound driver which uses auto dma. The dma interface functionality remains however it now checks to see if a dma is operating in auto dma mode and if so it bypasses the busy flag check . I have modified the sound driver 3.5 to adjust for this new behavior and tested it under FreeBSD 3.0 -current This patch also includes the new function isa_dmastop. Submitted by: Amancio Hasty <hasty@rah.star-gate.com>