kern/55104: "eject -l cdrom" no longer works

[gson%gson.org@localhost (Andreas Gustafsson)]

>Number:         55104
>Category:       kern
>Synopsis:       "eject -l cdrom" no longer works
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Mar 24 08:20:00 +0000 2020
>Originator:     Andreas Gustafsson
>Release:        NetBSD 9.0
>Organization:

>Environment:
System: NetBSD
Architecture: x86_64
Machine: amd64
>Description:

With NetBSD 7.1, you could retract the disc tray of a typical desktop
SATA CD-ROM drive and close the drive door by running "eject -l cdrom".
This also happened automatically if you ran "cdrecord" from the
cdrtools package without manually closing the drive door first.

With NetBSD 9.0, this no longer works.  Running "eject -l cdrom"
with the drive tray extended gives the error message

  eject: open: /dev/rcd0d: Operation not supported by device

>How-To-Repeat:

Extend the disc tray of a CD-ROM drive having a motorized tray, either
by pressing the eject button or by running "eject cdrom", and then
attempt to retract it by running "eject -l cdrom".

>Fix: