dmascc_cfg(1) on Linux
The text 3227712e1d86, as Debian 10 (Buster), Debian 9 (Stretch) shipped it.
Configure dmascc devices
Flags it lists
-
--clocks -
--dma -
--nrzi -
--persist -
--slottime -
--speed -
--sqdelay -
--txdelay -
--txtime -
--waittime