hdparm(8) on Linux
The text 4a91dee28c63, as Debian 9 (Stretch) shipped it.
get/set SATA/IDE device parameters
Flags it lists
-
--Istdin -
--Istdout -
--dco-freeze -
--dco-identify -
--dco-restore -
--direct -
--drq-hsm-error -
--fallocate -
--fibmap -
--fwdownload -
--idle-immediate -
--idle-unload -
--make-bad-sector -
--offset -
--prefer-ata12 -
--read-sector -
--repair-sector -
--trim-sector-ranges -
--trim-sector-ranges-stdin -
--verbose -
--write-sector -
-A -
-B -
-C -
-D -
-E -
-F -
-H -
-I -
-J -
-K -
-L -
-M -
-N -
-P -
-Q -
-R -
-S -
-T -
-V -
-W -
-X -
-Y -
-Z -
-a -
-b -
-c -
-d -
-f -
-g -
-h -
-i -
-k -
-m -
-n -
-p -
-q -
-r -
-s -
-t -
-u -
-v -
-w -
-y -
-z