HelenOS sources

DMA_MODE_ON_DEMAND  166 uspace/drv/audio/sb16/dsp.c 	    DMA_MODE_READ | DMA_MODE_AUTO | DMA_MODE_ON_DEMAND);
DMA_MODE_ON_DEMAND  746 uspace/drv/block/pc-floppy/pc-floppy.c 	    DMA_MODE_ON_DEMAND);
DMA_MODE_ON_DEMAND  822 uspace/drv/block/pc-floppy/pc-floppy.c 	    DMA_MODE_ON_DEMAND);