`parport' ɤ Linux ˤѥݡȤΥݡȤ
ޤΥɤǤϡĤΥݡȤʣΥǥХ
ɥ饤ФǶͭ뤳ȤǽˤʤäƤޤ

parport ˤϥѥ᡼ϤȤǤϡɥμư
̤񤭤Ǥޤ IRQ ȤäǤ
IRQ μưФϰ̤ˤϤޤޤΤǡǥեȤǤ
ץ *Ǥ* IRQ ѤʤȤˤʤäƤޤѥ
ݡȤƱ IRQ 򥵥ɥɤͥåȥɤ˳Ƥ
桼⤿󤤤뤫Ǥ

parport Ĥʬ̤Ƥޤݡȶͭ른
åʬȡºݤ˥ݡȤ򰷤¸ʬǤ

⥸塼 parport Ȥ
===========================

parport Υɤ⥸塼Ȥƥɤϡޤ

	# insmod parport.o

Ȥƥͥåɤޤ˵¸
ɬפޤʲϤ㡣

	# insmod parport_pc.o io=0x3bc,0x378,0x278 irq=none,7,auto

Ǥ parport ɤˡPC ΥݡȤ 3 ĻȤȡ
Ĥ 0x3bc  IRQ ʤĤ 0x378  IRQ 7 Ȥ
Ĥ 0x278  IRQ ưФ뤳ȡפȤäؼ
ƤޤߤΤȤǤϡPC Υϡɥ
(parport_pc)  Sun Ultra/AX Υϡɥ (parport_ax)
ݡȤƤޤ


kmod ǻȤ
-----------

kmod ȤäƤϡ /etc/conf.modules ԽƤ
Ǥ礦Τ褦ʹԤɲäޤ:

	alias parport_lowlevel parport_pc
	options parport_pc io=0x378,0x278 irq=7,auto

 kmod ϥѥݡȤΥǥХɥ饤 (lp ʤ) 
ɤ뤿ӤˡưŪ parport_pc ɤ褦ˤʤޤ
(ץ "io=0x378,0x278 irq=7,auto" Ѥޤ)

parport μư [ץ]
------------------

parport ε¸ɤ򥫡ͥ˥ɤˤʤ顢
parport_probe ⥸塼ɤ뤳ȤǤޤ

	# insmod parport_probe.o

 IEEE1284 ץ֤³ƤƤΥǥХФ
Ԥ졢ʲΤ褦ʥåϤޤ

	parport0: Printer, BJC-210 (Canon)

(kmod ȤäƤ parport_probe ⥸塼ǻȤ褦
ꤷϡΤ褦ˤʤǤ礦)

ץ֤η̤ /proc/parport/?/autoprobe Ǹ뤳ȤǤޤ


parport 򥫡ͥ˥ƥå˥󥯤
============================================

parport Υɤ򥫡ͥ˥ƥå˥󥯤ϡ
ͥΥ֡ȥѥ᡼Ѥо嵭ƱͤΤȤǤޤ
LILO Υޥɥ饤˰ʲΤ褦ʻɲäƤ

	parport=0x3bc parport=0x378,7 parport=0x278,auto

`parport=...' ԤʣǤޤɲäݡȰĤȤ
ԤꤷޤͥΥޥɥ饤 `parport=0' ɲ
ȡ parport ΥݡȤϤä̵ˤʤޤ `parport=auto'
򥫡ͥ륳ޥɥ饤ɲäȡưФ줿 IRQ 饤
DMA ͥѤޤ


/proc Υե
================

/proc ե륷ƥΥݡȤ򥫡ͥꤷƤϡ
/proc/parport Ȥǥ쥯ȥꥨȥ꤬ϤǤ
ǥ쥯ȥˤϡ parport ˰褦˻ꤷѥݡ
줾б륵֥ǥ쥯ȥ꤬ޤ饵֥ǥ쥯ȥ
ˤϤ줾 4 ĤΥե뤬ꡢ̤ƥѥݡȤ
֤Τ뤳ȤǤޤ

ե			

/proc/parport/0/devices		ΥݡȤȤäƤǥХɥ饤Ф
				ꥹȡߥݡȤȤäƤɥ饤
				̾Ƥˤ "+" Ĥ (εǽ
				ƤΥɥ饤ФǥݡȤƤ櫓
				ǤϤʤ)

/proc/parport/0/hardware	ѥݡȤΥ١ɥ쥹
				IRQ 饤 DMA ͥ롣

/proc/parport/0/irq		ΥݡȤФ parport ȤäƤ
				IRQ̥եˤʤäƤΤϡ
				ե˽񤭹 (IRQ ֹޤ "none")
				ȤˤäѹǽˤƤ뤿ᡣ

/proc/parport/0/autoprobe	줿 IEEE-1284 ǥХ ID 


ǥХɥ饤
================

parport ɤ줿顢ƥݡȤ˥ǥХɥ饤Ф򥢥å
뤳ȤǤޤ̤ϤϼưŪ˹ԤǤ礦㤨 lp
ɥ饤ФϡɤȸդäݡȤ줾Ф lp ǥХ
ޤư lp ɥ饤ФΥɻ˥ѥ᡼
Ѥо񤭲ǽǤ

	# insmod lp.o parport=0,2

뤤 LILO Υޥɥ饤:

	lp=parport0 lp=parport2

嵭Ĥϡ lp Ф /dev/lp0 ܤΥѥݡȤ
ơ /dev/lp1  *ܤ* ѥݡȤ˳Ƥ褦
ꤷƤޤܤΥݡ (parport1) ˤ lp ɥ饤Фϳ
ޤ󡣤ϰΥͥưλȤϰۤʤäƤ뤳Ȥ
Ƥ I/O ݡȥɥ쥹ȥǥХ̾ϥƥå
ϢŤƤꡢ㤨 /dev/lp0 Ͼ 0x3bc ΥݡȤǤ
ϤѤޤ - 㤨Ф⤷ݡȤĤʤС
ݡȤϥǥեȤǤ /dev/lp0 ˤʤޤϤΥݡȤ
١ɥ쥹ˤϰ¸ޤ

:

 * IEEE-1284 ưФ򥳥ѥ򤷤ϡͥ
   ޥɥ饤 `ip=auto' Ǥޤ lp ϥץ󥿤
   ³ƤȽǤ줿ݡȤФƤΤߥǥХޤ

 * PLIP  `timid' ѥ᡼ꤹ (ޥɥ饤 `plip=timid'
   뤤ϥ⥸塼ʤ `insmod plip timid=1')¾ΥǥХˤä
   ǤȽǤ줿ݡȤ PLIP 򤱤褦ˤʤޤ

 * IRQ ưФưݡȤΥפϸǤϤޤ¿
   ޤ

--
Philip.Blundell@pobox.com
tim@cyberelk.demon.co.uk

# ʸ linux kernel 2.2.10  Documentation/parport.txt
# ܸǤʣ̡ѡۤ GPL2 ξвǽǤ
# ͺ (nakano@apm.seikei.ac.jp)  JF Project ζϤβ
# Ԥޤո JF@linux.or.jp ޤǤ󤻤

$Id: parport.txt,v 1.1 2001/01/21 05:46:11 mdk Exp $

