/usr/bin/vtdeviceinfo is in libvpb0 4.2.54-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | #!/bin/sh
#
# Simple script to scan the /proc/vt tree for information
# about Voicetronix devices that are currently enabled.
#
# Ron <ron@voicetronix.com.au>, 5-Aug-2006
for b in /proc/vt/board*; do
    [ -d $b ] || continue
    echo -n "${b##*/}: $(cat $b/name) $(cat $b/id), max ports $(cat $b/maxports)"
    if [ -e $b/firmware ]; then
        echo ", firmware $(cat $b/firmware)"
    else
        echo
    fi
    for m in $b/module*; do
        [ -d $m ] || continue
        echo " ${m##*/}:"
        for f in $m/*; do
            printf "  %-8s = $(cat $f)\n" "${f##*/}"
        done
    done
    for p in $b/port*; do
        [ -d $p ] || continue
        echo " ${p##*/}:"
        for f in $p/*; do
            printf "  %-8s = $(cat $f)\n" "${f##*/}"
        done
    done
done
 |