Miscellany
public text v1 · immutablesudo hdparm -d1 -c1 -u1 /dev/sda
/dev/sda:
setting 32-bit IO_support flag to 1
HDIO_SET_32BIT failed: Invalid argument
setting unmaskirq to 1 (on)
HDIO_SET_UNMASKINTR failed: Inappropriate ioctl for device
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Inappropriate ioctl for device
IO_support = 0 (default 16-bit)