v4lctl -V (return code: 1)
v4lctl: invalid option -- '-'
usage: v4lctl [ options ] command
options:
-v, --debug=n debug level n, n = [0..2]
-c, --device=file use <file> as video4linux device
-h, --help print this text
v4lctl --help (return code: 1)
v4lctl: invalid option -- '-'
usage: v4lctl [ options ] command
options:
-v, --debug=n debug level n, n = [0..2]
-c, --device=file use <file> as video4linux device
-h, --help print this text