freebsd-skq/usr.sbin/cdcontrol/cdcontrol.1

.\" $FreeBSD$
.\"
.Dd August 25, 2016
.Dt CDCONTROL 1
.Os
.Sh NAME
.Nm cdcontrol
.Nd compact disc control utility
.Sh SYNOPSIS
.Nm
.Op Fl sv
.Op Fl f Ar device
.Op Ar command ...
.Sh DESCRIPTION
The
.Nm
utility is a program to control audio features of a CD drive.
The device is a name such
as
.Pa cd0 .
.Pp
If no
.Ar command
is given, then
.Nm
enters an interactive mode, reading commands from the standard input.
.Pp
The following options are available:
.Bl -tag -width indent
.It Fl s
Silent mode.
Do not print table headers and human readable comments.
.It Fl v
Verbose mode.
Print as much information as possible.
.It Fl f Ar device
Specify a device, such as
.Pa /dev/cd0 .
Both absolute path and relative to
.Pa /dev
filename are possible.
The
.Fl f
option overrides
.Ev CDROM .
If neither
.Ev CDROM
nor the
.Fl f
option is specified,
.Nm
tries opening first
.Pa /dev/cdrom ,
then
.Pa /dev/cd0 .
.El
.Pp
The available commands are listed below.
Only as many
characters as are required to uniquely identify a command
need be specified.
The word
.Ic play
can be omitted or the characters
.Ic +
and
.Ic -
can be used in the
place of
.Ic next
and
.Ic prev .
.Bl -tag -width indent
.It Ic play Ar first_track Op Ar last_track
Play from track
.Ar first_track
to track
.Ar last_track .
The first track has number 1.
Can be omitted in all cases.
.It Xo
.Ic play
.Ar start_m : Ns Ar start_s . Ns Ar start_f
.Op Ar end_m : Ns Ar end_s . Ns Ar end_f
.Xc
Play from the absolute address
(MSF) defined by
.Ar start_m
in minutes,
.Ar start_s ,
in seconds and
.Ar start_f
(frame number) to the absolute address defined by
.Ar end_m
in minutes,
.Ar end_s ,
in seconds and
.Ar end_f
(frame number).
Minutes are in the range 0-99.
Seconds are in the range 0-59.
Frame numbers are in the range 0-74.
.It Ic play Op # Ns Ar start_block Op Ar length
Play starting from the logical block
.Ar start_block
using
.Ar length
logical blocks.
.It Ic next Op Ar tracks
Skip forward a number of tracks (default 1).
.It Ic prev Op Ar tracks
Skip backward a number of tracks (default 1).
.It Ic pause
Stop playing.
Do not stop the disc.
.It Ic resume
Resume playing.
Used after the
.Ic pause
command.
.It Ic stop
Stop the disc.
.It Ic eject
Eject the disc.
.It Ic close
Inject the disc.
.It Ic volume
Same as
.Em status volume
command.
.It Ic volume Ar level
Set the volume of both channels to
.Ar level .
Allowed values are in the range 0-255.
.It Ic volume Ar left_channel right_channel
Set the volume of left channel to
.Ar left_channel
and the volume of right channel to
.Ar right_channel .
Allowed values are in the range 0-255.
.It Ic volume Cm mute
Turn the sound off.
.It Ic volume Cm mono
Set the mono mode.
.It Ic volume Cm stereo
Set the stereo mode.
.It Ic volume Cm left
Play the left subtrack on both left and right channels.
.It Ic volume Cm right
Play the right subtrack on both left and right channels.
.It Ic info
Print the table of contents.
.It Ic status Op Cm audio | media | volume
Print the information about the disc:
.Pp
.Bl -tag -width ".Cm volume" -compact
.It Cm audio
the current playing status and position
.It Cm media
the current media catalog status
.It Cm volume
the current values of the volume for left and right channels.
.El
.It Ic cdid
Display the serial number of the CD using the method used by the
.Tn CDDB
project
.Pq Pa http://www.cddb.org/ .
.It Ic help
Print the list of available commands.
.It Ic debug Cm on
Enable the debugging mode of the CD device driver.
.It Ic debug Cm off
Disable the driver debugging mode.
.It Ic reset
Perform the hardware reset of the device.
.It Ic set Cm msf
Set minute-second-frame ioctl mode (default).
.It Ic set Cm lba
Set LBA ioctl mode.
.It Ic speed Ar s
Set the highest speed that the drive should use for reading data.
The units are multiples of a single speed CDROM (150 KB/s).
Specify
.Dq Li max
to use the drive's fastest speed.
.It Ic quit
Quit the program.
.El
.Sh ENVIRONMENT
The following environment variables affect the execution of
.Nm :
.Bl -tag -width ".Ev CD_DRIVE"
.It Ev CDROM
The CD device to use, if one is not specified with the
.Fl f
option.
.It Ev CDPLAY , CD_DRIVE , DISC , MUSIC_CD
These variables have been deprecated in favour of
.Ev CDROM .
.El
.Sh FILES
.Bl -tag -width ".Pa /dev/cd0" -compact
.It Pa /dev/cd0
.El
.Sh HISTORY
The
.Nm
command appeared in
.Fx 2.1 .
.Sh AUTHORS
.An Jean-Marc Zucconi
.An Andrey A. Chernov
.An Serge V. Vakulenko