setsserial(9) on Linux
The text a88b3d14c0ea, as Debian 13 (Trixie), Debian 12 (Bookworm) shipped it. The page shows this text now.
a utility for setting Smart Serial NVRAM parameters. NOTE: This rather clunky utility is no longer needed except for flashing new smart-serial remote firmware. Smart-serial remote parameters can now be set in the HAL file in the normal way.