Интерактивная система просмотра системных руководств (man-ов)
mcd (4)
mcd (1) ( Linux man: Команды и прикладные программы пользовательского уровня )
>> mcd (4) ( FreeBSD man: Специальные файлы /dev/* )
BSD mandoc
NAME
mcd
- Mitsumi CD-ROM driver
SYNOPSIS
device mcd
In
/boot/device.hints
hint.mcd.0.at=isahint.mcd.0.port=0x300hint.mcd.0.irq=10
DESCRIPTION
The
driver provides a data and audio interface to the Mitsumi-brand CD-ROM
player.
The CD-ROM player must be interfaced to the ISA bus through
one of the Mitsumi proprietary controller boards.
The controller
boards supported are the LU002S, LU005S, the FX001 and the quite
common FX001D.
The
driver responds to disk-specific
ioctl ();
commands, namely the
DIOCGDINFODIOCGPARTDIOCWDINFO
and
DIOCSDINFO
commands.
Other disk-specific
ioctl ();
commands will return an error.
The
driver also responds to special CD-ROM
ioctl ();
commands.
These commands
control the CD-ROM player's audio features.
The commands are:
CDIOCREADSUBCHANNEL
get sub-channel information on current status of disc playing
CDIOCREADTOCHEADER
get table of contents header
CDIOCREADTOCENTRYS
gets all of the table of contents
CDIOCPLAYTRACKS
begins audio playing at location specified
CDIOCPLAYBLOCKS
fails with error
Er EINVAL
CDIOCPLAYMSF
begins audio playing at location specified
CDIOCRESUME
resumes playing a previously paused disc
CDIOCPAUSE
pauses a playing disc
CDIOCSTART
begins playing a disc
CDIOCSTOP
stops a previously playing disc
CDIOCEJECT
opens the disc tray (there is no support for a corresponding un-eject
command).
CDIOCRESET
stops any play and resets the Mitsumi controller board
CDIOCSETDEBUG
cause the kernel to print debug messages to the console about the
driver
CDIOCCLRDEBUG
cause the kernel to quit printing debug messages about the
driver
The
ioctl ();
commands defined above are the only ones that the
driver supports.
There are other CD-ROM related
ioctl ();
commands (such as
CDIOCSETVOL
and
CDIOCSETSTERIO
which are available
and may be supported by future versions of the driver.
FILES
/dev/(r)mcd0a
accesses
BSD partition on the disc.
Normally, there is only
one file system on a CD-ROM disc.
/dev/(r)mcd0c
accesses raw device.
NOTES
The character-mode devices for the
driver should only be used for accessing the audio features of the
CD-ROM player as the performance on data is abysmal.
The current version of the driver uses neither the DMA or IRQ
features of the interface board, although it has an interrupt handler
for any IRQ requests that are generated.
Until the DMA features are
supported, the only interrupts that the board generates are those that
are not supported by the driver anyway.
SEE ALSO
#include <sys/cdio.h>
HISTORY
An
driver appeared in
Fx 1.0 .
AUTHORS
An -nosplit
The driver was written by
An Holger Veit
(data part) and
An Brian Moore
(audio part).
Changes were provided by
An Gary Clark II ,
An Andrew A. Chernov ,
and
An Jordan K. Hubbard .
