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cd — SCSI CD-ROM ?ɥ饤??

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device cd device cd1 at scbus0 target 4 lun 0 options "CHANGER_MIN_BUSY_SECONDS=3" options "CHANGER_MAX_BUSY_SECONDS=11"

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cd ?ɥ饤?Фϡ? SCSI CD-ROM (?????ѥ??ȥǥ?????-?ɤ߽Ф????ѥ?????) ?ɥ饤?֤򥵥ݡ??Ȥ??ޤ??? ?̾??ǥ???????Ʊ???褦?˸????뤿???ˡ? cd ?ɥ饤?Фϡ? CD-ROM ???Τ򥫥С????? 1 ?ĤΥѡ??ƥ??????󤫤??ʤ? ?ѡ??ƥ????????ơ??֥??????????ޤ??? ???Υѡ??ƥ????????ơ??֥??? disklabel(8) ???Ѥ??ƽ??????뤳?Ȥϲ?ǽ?Ǥ????? ???ν????? CD-ROM ?򥢥??ޥ????Ȥ????ޤǤδ֤Τ?ͭ???Ǥ??? ????Ū?ˡ????Υ??󥿥ե??????? wd(4) ?? da(4) ?ǽҤ٤????Ƥ??????Τ?Ʊ?ͤǤ???

SCSI ?????ץ????֡??????˥ץ????֤??????ݡ? SCSI ?Х????ΥǥХ??????????????ޤ??? ???Ĥ??ä??ǥХ????Τ????? ?????? CDROM (?????? 5) ???뤤?? WORM (?????? 4) ?ȱ??????????Τ? cd ?ɥ饤?Ф˥????å??????ޤ??? FreeBSD 2.1 ?????ΥС????????Ǥϡ? ?ǽ??˸??Ĥ??ä??ǥХ????? cd0 ?Ȥ??ƥ????å????졢???μ??? cd1 ?Τ褦?ˤʤäƤ??ޤ????? FreeBSD 2.1 ?????ϡ??ǥХ????????֤? cd ???˥åȤȤʤ??٤????????Ǥ??ޤ??? ?????ͥ??????ξܺ٤ˤĤ??Ƥ? scsi(4) ?򻲾Ȥ??Ʋ???????

?????ƥ??桼?ƥ????ƥ? disklabel(8) ???Ѥ??ơ????????줿?ǥ????????٥빽¤?Τ??ɤ߽Ф??ޤ??? ???ι?¤?Τˤϡ?ɬ?פȤʤ? CD-ROM ?Υ??????˴ؤ??????????ͤ??ޤޤ??ޤ???

?????ͥ?????

?????ƥ??????˴ؤ??餺??Ǥ?դο??? CD-ROM ?ǥХ????򥷥??ƥ??˥????å??Ǥ??ޤ??? ???ƤΥ꥽??????ưŪ?˥????????Ȥ????ޤ???

IOCTL

SCSI CD-ROM ?ɥ饤?֤?Ŭ?Ѥ??????ʲ??? ioctl(2) ?ƤӽФ??????إå??ե????? ⟨sys/cdio.h⟩ ?? ⟨sys/disklabel.h⟩ ???????????Ƥ??ޤ???

DIOCGDINFO

 

DIOCSDINFO

(struct disklabel) ?????ɥ饤?֤??Ф????ǥ????????٥??Υ????ͥ??⥳?ԡ????ɤ߽񤭤??ޤ??? ?ǥ????????٥??? scsi inquiry ???ޥ??ɤ????ɤ߼??ä??????ǽ??????????ޤ??? ?????ͤϥ֡??Ȼ???ɽ?????줿???Τ?Ʊ???ΤϤ??Ǥ??? ???ι?¤?Τ? disklabel(5) ???????????Ƥ??ޤ???

CDIOCCAPABILITY

(struct ioc_capability) ?????ɥ饤?֤????ݡ??Ȥ??Ƥ??뵡ǽ?˴ؤ??????????????Ф??ޤ??? ?????ϰʲ??ι?¤?Τ??֤????ޤ???

struct ioc_capability {
	u_long	play_function;
#define CDDOPLAYTRK	0x00000001
	/* tracks/index ?????Ǻ?????ǽ */
#define	CDDOPLAYMSF	0x00000002
	/* msf (ʬ?åե졼??) ?????Ǻ?????ǽ */
#define	CDDOPLAYBLOCKS	0x00000004
	/* ?֥??å??????Ǻ?????ǽ */
#define	CDDOPAUSE	0x00000100
	/* ???Ϥ????????߲?ǽ */
#define	CDDORESUME	0x00000200
	/* ???Ϥ??Ƴ???ǽ */
#define	CDDORESET	0x00000400
	/* ?ɥ饤?֤??????˥ꥻ?åȲ?ǽ */
#define	CDDOSTART	0x00000800
	/* ?????ǥ??????ϲ?ǽ */
#define CDDOSTOP	0x00001000
	/* ?????ǥ??????߲?ǽ */
#define CDDOPITCH	0x00002000
	/* ?????ǥ????ԥå?Ĵ????ǽ */

	u_long	routing_function;
#define CDREADVOLUME	0x00000001
	/* ?ܥ??塼?????????ɤ߽Ф???ǽ */
#define CDSETVOLUME	0x00000002
	/* ?ܥ??塼??????????ǽ */
#define	CDSETMONO	0x00000100
	/* ???Ϥ????Υ???????????ǽ */
#define CDSETSTEREO	0x00000200
	/* ???Ϥ򥹥ƥ쥪????????ǽ (?ǥե?????) */
#define	CDSETLEFT	0x00000400
	/* ???Ϥ򺸤Τߤ???????ǽ */
#define	CDSETRIGHT	0x00000800
	/* ???Ϥ򱦤Τߤ???????ǽ */
#define	CDSETMUTE	0x00001000
	/* ???ϤΥߥ塼?Ȳ?ǽ */
#define CDSETPATCH	0x00008000
	/* ?????쥯?ȥ롼?ƥ???????????ǽ */

	u_long	special_function;
#define	CDDOEJECT	0x00000001
	/* ?ȥ졼?Υ????ץ???ǽ */
#define	CDDOCLOSE	0x00000002
	/* ?ȥ졼?Υ?????????ǽ */
#define	CDDOLOCK	0x00000004
	/* ?ȥ졼?Υ??å???ǽ */
#define CDREADHEADER	0x00000100
	/* ?ܼ????ɤ߽Ф???ǽ */
#define	CDREADENTRIES	0x00000200
	/* ?ܼ??????ȥ????ɤ߽Ф???ǽ */
#define	CDREADSUBQ	0x00000200
	/* ???֥????ͥ????????ɤ߽Ф???ǽ */
#define CDREADRW	0x00000400
	/* ???֥????? R-W ???ɤ߽Ф???ǽ */
#define	CDHASDEBUG	0x00004000
	/* ?ȥ졼???????ʥߥå??ǥХå???ǽ?????? */
};

CDIOCPLAYTRACKS

(struct ioc_play_track) ???ꤵ?줿?ȥ??å????ɥ쥹??????Ĺ???˴??Ť??ƥ????ǥ????κ????򳫻Ϥ??ޤ??? ???ι?¤?Τϰʲ??Τ褦???????????ޤ?:

struct ioc_play_track
{
	u_char	start_track;
	u_char	start_index;
	u_char	end_track;
	u_char	end_index;
};

CDIOCPLAYBLOCKS

(struct ioc_play_blocks) ???ꤵ?줿?֥??å????ɥ쥹??????Ĺ???˴??Ť??ƥ????ǥ????κ????򳫻Ϥ??ޤ??? ???ι?¤?Τϰʲ??Τ褦???????????ޤ?:

struct ioc_play_blocks
{
	int	blk;
	int	len;
};

CDIOCPLAYMSF

(struct ioc_play_msf) ???ꤵ?줿??ʬ-??-?ե졼???פ?Ĺ???˴??Ť??ƥ????ǥ????κ????򳫻Ϥ??ޤ??? ???ι?¤?Τϰʲ??Τ褦???????????ޤ?:

struct ioc_play_msf
{
	u_char	start_m;
	u_char	start_s;
	u_char	start_f;
	u_char	end_m;
	u_char	end_s;
	u_char	end_f;
};

CDIOCREADSUBCHANNEL

(struct ioc_read_subchannel) ???ι?¤?Τǻ??ꤵ?줿?????????????Υ??֥????ͥ뤫?????????ɤ߽Ф??ޤ???

struct ioc_read_subchannel {
	u_char address_format;
#define CD_LBA_FORMAT	1
#define CD_MSF_FORMAT	2
	u_char data_format;
#define CD_SUBQ_DATA		0
#define CD_CURRENT_POSITION	1
#define CD_MEDIA_CATALOG	2
#define CD_TRACK_INFO		3
	u_char track;
	int	data_len;
	struct  cd_sub_channel_info *data;
};

CDIOREADTOCHEADER

(struct ioc_toc_header) ?ޥ????Ȥ??줿 CD-ROM ???ܼ??˴ؤ????????Υ??ޥ????֤??ޤ??? ???ξ????ϰʲ??ι?¤?Τ˳?Ǽ?????֤????ޤ???

struct ioc_toc_header {
	u_short len;
	u_char  starting_track;
	u_char  ending_track;
};

CDIOREADTOCENTRYS

(struct ioc_read_toc_entry) ???ꤵ?줿?ܼ??????ȥ꤫???ξ??????֤??ޤ??? (?????????Υ??ޥ???̾?Υ??ڥ??ϴְ??äƤ??ޤ???) ?????ι?¤?Τϰʲ??Τ褦?ˤʤ??ޤ?:

struct ioc_read_toc_entry {
	u_char	address_format;
	u_char	starting_track;
	u_short	data_len;
	struct  cd_toc_entry *data;
};

?׵??ǡ????ϡ? data ???ؤ??礭?? data_len ???ΰ??˳?Ǽ?????ޤ???

CDIOCSETPATCH

(struct ioc_patch) ?͡??ʥ????ǥ????????ͥ????͡??ʽ??ϥ????ͥ??˳??????Ƥޤ??? ?????ι?¤?Τϼ??Τ褦???????????ޤ?:

struct ioc_patch {
	u_char	patch[4];
	/* ?ƥ????ͥ????Ф? 1 ???Ǥ??б? */
};

CDIOCGETVOL

 

CDIOCSETVOL

(struct ioc_vol) ???ϥ????ͥ??Υܥ??塼???????˴ؤ????????????? (???뤤??????) ???ޤ??? ?????ι?¤?Τϼ??ΤȤ????Ǥ?:

struct	ioc_vol
{
	u_char	vol[4];
	/* ?ƥ????ͥ????Ф? 1 ???Ǥ??б? */
};

CDIOCSETMONO

???Ƥν??ϥ????ͥ??????Ƥ????ϥ????ͥ??˳??????Ƥޤ???

CDIOCSETSTEREO

?????ϥ????ͥ??򺸽??ϥ????ͥ??ˡ??????ϥ????ͥ??򱦽??ϥ????ͥ??ˡ? ???줾?????????Ƥޤ???

CDIOCSETMUTE

?ܥ??塼?????????ѹ??????˽??Ϥ??ߥ塼?Ȥ??ޤ???

CDIOCSETLEFT

 

CDIOCSETRIGHT

ξ???ν??ϥ????ͥ????? (?ޤ??ϱ?) ???ϥ????ͥ??˳??????Ƥޤ???

CDIOCSETDEBUG

 

CDIOCCLRDEBUG

?б??????ǥХ??????Ф????ǥХå???ǽ?򥪥? (?ޤ??ϥ???) ?ˤ??ޤ???

CDIOCPAUSE

 

CDIOCRESUME

?????ǥ????????????????? (?ޤ??ϺƳ?) ???ޤ??? ?ɤ߽Ф??إåɤΰ??֤ϥꥻ?åȤ??ޤ?????

CDIOCRESET

?ɥ饤?֤??ꥻ?åȤ??ޤ???

CDIOCSTART

 

CDIOCSTOP

?ɥ饤?֤??Ф??? CD-ROM ?β?ž???? (?ޤ???????) ???ؼ????ޤ???

CDIOCALLOW

 

CDIOCPREVENT

?ɥ饤?֤??Ф??? CD-ROM ?ǥ??????μ?ư?ˤ????????Ф??????? (?ޤ??϶ػ?) ???ޤ??? ???ε?ǽ?򥵥ݡ??Ȥ??ʤ??ɥ饤?֤??????ޤ???

CDIOCEJECT

CD-ROM ???????Ф??ޤ???

CDIOCCLOSE

?ɥ饤?֤??Ф????ɥ????Ĥ????ǥ??????????ɤ????褦?ؼ????ޤ??? ???ε?ǽ?򥵥ݡ??Ȥ??ʤ??ɥ饤?֤??????ޤ???

CDIOCPITCH

(struct ioc_pitch) ???ε?ǽ?򥵥ݡ??Ȥ????ɥ饤?֤??Ф??? ?????ǥ??????̾??????ᤤ®?٤ʤ????٤?®?٤Ǻ????????褦?ؼ????ޤ??? speed ???ͤ? -32767 ???? -1 ?ޤǤδ֤ʤ??٤?®?٤Ǻ??????ޤ??? ?ͤ? 0 ?ʤ??̾?®?٤Ǥ????ͤ? 1 ???? 32767 ?ξ??????ᤤ®?٤Ǻ??????ޤ??? ʬ??ǽ?? 16 ?ӥå?̤???Υɥ饤?֤ξ??硢???顼???Ф????? ñ?˲??̥ӥåȤ?̵?뤵???ޤ??? ???ι?¤?Τϼ??Τ褦???????????ޤ?:

struct	ioc_pitch
{
	short	speed;
};

????

cd ?ɥ饤?Ф????椵???Ƥ????ɥ饤?????? CD-ROM ?????촹?????줿???硢 ???ǥ????????????ˤ??äƥ????ͥ????Υǥ????????٥??ȴ?Ϣ?????? ̵?????????ޤ??? ?ǡ?????»???򤱤뤿?ᡢ?????ǥХ????򻲾Ȥ??륪???ץ??ե????? ?ǥ??????ץ????ʤ??ʤ??ޤǡ??????ǥХ??????Ф??륢?????????????˴??????ޤ??? ???δ֡??????ʥ????ץ??????????Ƶ??ݤ????ޤ??? ?????ǥХ????򻲾Ȥ??륪???ץ??ե??????ǥ??????ץ????ʤ??ʤ??ȡ? ??³?κǽ??Υ????ץ??????ˤ??ꡢ?????ɥ饤?֤??Ф??뿷???? ?ѥ??᡼???켰 (?ǥ????????٥????ޤ?) ???????ɤ????ޤ???

cd ?ɥ饤?????Υ????ǥ????????ɤ? SCSI-2 ɸ???Υ????ǥ??????ޥ??ɤΤߥ??ݡ??Ȥ??ޤ??? ¿???? CD-ROM ??¤?ȼԤϤ???ɸ?൬?ʤ˽??äƤ??ʤ????ᡢ ?????ǥ?????ư??ʤ? CD-ROM ?ɥ饤?֤???¿??¸?ߤ??ޤ??? ????????Ū?ʡ֥????ʡ? CD-ROM ?ɥ饤?֤򥵥ݡ??Ȥ??????Ȥ??ײ褵???Ƥ??ޤ????? ?ޤ??¹Ԥ˰ܤ????Ƥ??ޤ?????

?????󥸥?????

???Υɥ饤?Ф? LUN ?١????? CD ?????󥸥??Υ??ݡ??Ȥ???¢???Ƥ??ޤ??? LUN ?١????? CD ?????󥸥??Ȥϡ?2 ?İʾ??? CD ???ݻ??Ǥ??뤬?? CD ?????????????Ȥ????????ʤ??ɥ饤?֤Ǥ??? ???Υɥ饤?????γ? CD ?ϡ? SCSI ?Х??????̡??????????˥åȤȤ??Ƹ????ޤ??? ???? cd ?ɥ饤?Фϼ?ưŪ?? LUN ?١????Υ????󥸥???ǧ?????? ?????Υ??????塼?????̤??ƥ????󥸥????Ф??륳?ޥ??ɤ??????Ф??ޤ??? ???Υ??????塼???ϡ??????󥸥????ΰۤʤ? LUN ??Ʊ???˥??ޥ??ɤ????뤳?Ȥ? ?????????????롢?????󥸥??Ρ֥????å??󥰡פ??ɤ??ޤ???

???????塼???ϡ??ɥ饤?Ф??????? LUN ?Ǿ??񤹤륿???९???󥿥??? ?Ǿ??ͤȺ????ͤ????????ޤ??? ?Ǿ??ͤȤϡ????Ȥ????? LUN ?˽??????? I/O ???ʤ??????Ǥ⡢ ???? LUN ???񤹤??Ȥ??ݾڤ????Ƥ????Ǿ??????̤Ǥ??? ?????ͤȤϡ?¾?? LUN ?˽??????? I/O ???????????ˡ? ???? LUN ?ǥ????󥸥㤬?񤹺????????̤Ǥ??? ¾?? LUN ?˽??????? I/O ???ʤ??????ϡ? ?ɥ饤?ФϤ??? LUN ???Ф??륢???????˾??¤??ߤ??ޤ?????

?Ǿ??????Ӻ??祿???९???󥿥??ϥ????ͥ륪?ץ??????? sysctl ?ѿ??? ?̤????ѹ??Ǥ??ޤ????????ͥ륪?ץ??????ϰʲ????̤?:

options CHANGER_MIN_BUSY_SECONDS=3

 

options CHANGER_MAX_BUSY_SECONDS=11

 

sysctl ?ѿ??ϰʲ????̤?:

kern.cam.cd.changer.min_busy_seconds

 

kern.cam.cd.changer.max_busy_seconds

 

?桼???ϡ?sysctl ?ѿ????̤??ƺǾ??????Ӻ??祿???ॢ???Ȥ???? ??ʬ?Υ????󥸥??˺?Ŭ???ͤ򸫤Ĥ????Ȥ褤?Ǥ??礦?? ??ö????ʬ?Υ????󥸥????Ф?????Ŭ?????ॢ???Ȥ????ޤ??С? ?????򥫡??ͥ??????ե??????˵??ҤǤ??ޤ???

??ʬ?Υ????ƥ??? LUN ?١????Υ????󥸥㤬¸?ߤ????С? ?֡??ȥץ????????ʤ??˽??äơ????Υ????󥸥????͡??? LUN ???Ф??? ?ץ????֥??å???????ɽ???????뤳?Ȥ˵??Ť??Ǥ??礦?? ???????????Ǥ??ꡢ?????󥸥??Υ??????塼???󥰥????ɤˤ??äư????????????ޤ???

??Ϣ?ե?????

/dev/cd[0-9][a-h]

?֥??å??⡼?? CD-ROM ?ǥХ???

/dev/rcd[0-9][a-h]

raw ?⡼?? CD-ROM ?ǥХ???

????

?????ޤ?????

??Ϣ????

scsi(4), da(4), disklabel(5), disklabel(8), cd(9)

?Х?

ioctl() ???Ф??? 3 ???ܤΰ??????Ѥ??????빽¤?Τ?̾????Ŭ???ǤϤ????ޤ????? ?ޤ??? ioctl() ???ޥ??ɤ????ˤϥ??ڥ??ߥ????????Ĥ??ĤäƤ??ޤ???

???ߤΤȤ??????ۤʤ? CD ?????󥸥????Ф??ưۤʤ??Ǿ??????Ӻ??? ?????ॢ?????ͤ????ꤹ?뵡???Ϥ????ޤ????? ?????ͥ륪?ץ????󤢤뤤?? sysctl ?ѿ??????ꤷ???????ॢ?????ͤ? ?????ƥ??ˤ??? LUN ?١????? CD ?????󥸥????Ƥ?Ŭ?Ѥ????ޤ??? ???Τ褦?ʥ??ݡ??Ȥ????????뤳?Ȥϲ?ǽ?Ǥ????? ???ʤ??Ȥ? sysctl ?ˤ????????Ϥ??ޤꥨ?쥬???ȤǤϤ????ޤ????? ?Ȥ????Τϡ????ߤ? sysctl ?????ɤǤϥ????ѥ??????ΥΡ????ɲä? ???갷?????Ȥ??Ǥ??ʤ??????Ǥ??? ?????椨??ưŪ???礭???????ꤹ?? sysctl ?ѿ????Ѱդ??? ?桼?????٥??Υ桼?ƥ????ƥ????Ѥ??ƥ????ॢ?????ͤ??????ʤ??????ꤹ?? ???Ȥˤʤ??Ǥ??礦?? ?????ͥ??????ե????????ǡ??ۤʤ? CD ?ǥХ??????Ф??? ?̡??Υ????ॢ???Ȥ??????Ǥ????褦?ˤ????ˤϡ? config(8) ?????????? ????Ū?˵??Ҥ??? cd ?ǥХ????? 2 ?ĤΥ????ॢ?????ͤ򥵥ݡ??Ȥ????褦?ˤ??ʤ????? ?ʤ??ʤ????⤷???ޤ?????

????

?? cd ?ɥ饤?Фϡ?Julian Ellischer ?????Ҥ? 386BSD 0.1 ???о줷?? cd ?ɥ饤?Ф??١????ˤ??Ƥ??ޤ??? cd ?ɥ饤?Ф? CAM ?С????????? Kenneth Merry ?????Ҥ??? FreeBSD 3.0 ?Ǻǽ????о줷?ޤ?????