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cdcontrol.c
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Editing: 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
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