Something
public text v1 · immutableordi-be ~ # hdparm -cud1a /dev/hda
/dev/hda:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
IO_support = 0 (default 16-bit)
unmaskirq = 0 (off)
using_dma = 0 (off)
readahead = 256 (on)