/usr/share/doc/HOWTO/ja-html/Modem-HOWTO-6.html

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<H2><A NAME="s6">6.</A> <A HREF="Modem-HOWTO.html#toc6">$B%7%j%"%k%]!<%H$N@_Dj(B</A></H2>

<H2><A NAME="PCI_"></A> <A NAME="ss6.1">6.1</A> <A HREF="Modem-HOWTO.html#toc6.1">PCI $B%P%9$O$^$@%5%]!<%H$5$l$F$$$^$;$s(B </A>
</H2>

<P> $B%+!<%M%k(B 2.2 $B$N%7%j%"%k%I%i%$%P$O(B PCI $B%P%9$r%5%]!<%H$7$F$$$^$;$s!#(B
$B$7$+$7!"%+!<%M%k(B 2.3 $B$H(B 2.4 $B$G$O!"$D$$$K0lIt$N(B PCI $B%7%j%"%k%\!<%I(B($B$*$h(B
$B$S%b%G%`%\!<%I(B)$B$KBP1~$7$^$9!#$[$H$s$I$N(B PCI $B%\!<%I$O!"%I%i%$%P$K$h$kFC(B
$B<l$J%5%]!<%H$,I,MW$G$9!#%I%i%$%P$O%\!<%I$K%G%8%?%kE*$K3JG<$5$l$F$$$k(B 
ID $B$rFI$_9~$_!"$=$N%\!<%I$K$I$&$d$C$FBP1~$9$k$+(B($B$"$k$$$O%5%]!<%H$9$k$+(B
$B$I$&$+(B)$B$r7h$a$^$9!#3N<B$K%=%U%H%&%'%"%b%G%`$G$O$J$$$N$KF0:n$7$J$$(B PCI 
$B%\!<%I$r$*;}$A$G$"$l$P!"$=$N%\!<%IMQ$N%I%i%$%P$r:n$k<j=u$1$,$G$-$^$9!#(B
$B$=$N$?$a$K$O!"%7%j%"%k%I%i%$%P$N%a%s%F%J$G$"$k(B Theodore (Ted) Y. Ts'o 
$B$5$s$KO"Mm$9$kI,MW$,$"$j$^$9!#(B</P>

<P>$B$3$N:]$K$O!"(B``<CODE>lspci -vv</CODE>'' $B$N=PNO$N%3%T!<$H(B PCI $B%b%G%`(B($B$^$?$O%7%j(B
$B%"%k%]!<%H(B)$B$N%b%G%k$H%a!<%+!<$K4X$9$k>\$7$$>pJs$rEE;R%a!<%k$GAw$kI,MW(B
$B$,$"$j$^$9!#$=$&$9$l$P!"H`$OF0:n$9$k$+$b$7$l$J$$%F%9%HMQ%I%i%$%P$N>l=j(B
$B$r$G$-$k$@$165$($F$/$l$k$G$7$g$&!#<!$K!"$3$N%I%i%$%P$rF~<j$7$F%3%s%Q%$(B
$B%k$7$^$9!#%+!<%M%k$bB?J,:F%3%s%Q%$%k$9$k$3$H$K$J$k$G$7$g$&!#$=$7$F!"$3(B
$B$N%I%i%$%P$r%F%9%H$7$F$&$^$/F0:n$9$k$+$I$&$+$rD4$Y!"$=$N7k2L$r(B Ted
Ts'o $B$5$s$KJs9p$7$^$9!#>e5-$N<j=gA4$F$r$A$c$s$H9T$&$D$b$j$,$"$k$J$i(B($B$=(B
$B$7$F$3$NJ8=q$,:G?7HG$J$i(B)$B!"H`$KI,MW$J>pJs$rAw$C$F$/$@$5$$!#%a!<%k%"%I(B
$B%l%9$O(B 
<A HREF="mailto:tytso@mit.edu">mailto:tytso@mit.edu</A> $B$G$9!#(B</P>


<P>PCI $B%b%G%`$O$"$^$jI8=`2=$5$l$F$$$^$;$s!#0lIt$N%\!<%I$O(B PC $B$H$N(B I/O $B$K(B
$B%a%$%s%a%b%j$r;H$$$^$9(B(ISA $B%\!<%I$O$3$&$$$C$?>l9g$K$O(B I/O $B%"%I%l%96u4V(B
$B$r;H$$$^$9(B)$B!#0lIt$N%\!<%I$O!"FC<l$JJ}K!$r;H$o$J$$$H(B IRQ $B$,M-8z$K$J$j$^(B
$B$;$s!#(B``lspci'' $B$N=PNO$r8+$l$P!"%\!<%I$,%5%]!<%H$5$l$F$$$k$+$I$&$+$rD4(B
$B$Y$kLr$KN)$D$G$7$g$&!#:Y$+$$OC$,$"$^$jFq$7$/$J$1$l$P!"I.<T$,$3$NJ}K!$K(B
$B$D$$$FD4$Y!"$3$NJ8=q$N>-Mh$N%P!<%8%g%s$G@bL@$9$k$+$b$7$l$^$;$s!#(B</P>


<H2><A NAME="irq_io_conf"></A> <A NAME="ss6.2">6.2</A> <A HREF="Modem-HOWTO.html#toc6.2">$B@_Dj$N35MW(B </A>
</H2>

<P> $BB?$/$N>l9g!"@_Dj$O<+F0E*$K9T$o$l$k$N$G!"%f!<%6$,$9$k$3$H$O2?$b$"$j(B
$B$^$;$s!#$7$+$7>l9g$K$h$C$F$O@_Dj$r9T$&I,MW$,$"$j$^$9(B($BC1$K@_Dj$r3N$+$a(B
$B$k$@$1$N$3$H$b$"$k$G$7$g$&(B)$B!#$3$&$$$C$?>l9g$K:G=i$K$9$Y$-$3$H$O!"(BLinux 
$B$K$*$1$k%7%j%"%k%]!<%H$N@_Dj$N(B 2 $B$D$NItJ,$rCN$k$3$H$G$9!#(B</P>


<P>$B:G=i$NItJ,(B($BDc%l%Y%k@_Dj(B)$B$O!"(BI/O $B%"%I%l%9!"(BIRQ$B!"L>A0(B (<CODE>ttyS2</CODE> $B$J$I(B)
$B$r3d$jEv$F$k$3$H$G$9!#$3$N(B I/O $B$H(B IRQ $B$NAH$O!"%O!<%I%&%'%"$H%7%j%"%k%I(B
$B%i%$%P$NN>J}$K@_Dj$7$J$1$l$P$J$j$^$;$s!#$3$l$r4JC1$K!V(BIO $B$H(B IRQ $B$N@_Dj!W(B
$B$H8F$V$3$H$K$7$^$7$g$&!#(B<CODE>setserial</CODE> $B$O%I%i%$%P$r@_Dj$9$k$?$a$K;H$$(B
$B$^$9!#(B PnP $B$N5!9=$d%8%c%s%Q$J$I$O%O!<%I%&%'%"$N@_Dj$KMQ$$$^$9!#>\$7$/(B
$B$O8e=R$7$^$9!#@_Dj$r$9$kI,MW$,$"$k$K$b4X$o$i$:>\$7$$$3$H$,J,$+$C$F$$$J(B
$B$1$l$P!"$9$0$KLdBj$K=P2q$C$F$7$^$&$G$7$g$&!#(B</P>


<P>2 $BHVL\$NItJ,(B($B9b%l%Y%k$N@_Dj(B)$B$OB.EY(B(38.4K $B%S%C%H(B/$BIC$J$I(B)$B$N@_Dj$d%U%m!<(B
$B@)8f$NA*Br$J$I$G$9!#$3$l$O$H$-$K$O(B PPP $B$d(B minicom $B$H$$$C$?DL?.%W%m%0%i(B
$B%`$d!"(B<CODE>getty</CODE> ($BB>$N?M$,$"$J$?$N%3%s%T%e!<%?$X%m%0%$%s$G$-$k$h$&$K%]!<(B
$B%H>e$GF0:n$7$^$9(B)$B$,9T$$$^$9!#$7$+$7!"@_Dj%a%K%e!<$d@_Dj%U%!%$%k$K$h$j!"(B
$B;H$$$?$$B.EY$r%W%m%0%i%`$X;XDj$9$kI,MW$,$"$j$^$9!#$3$N9b%l%Y%k$N@_Dj$O!"(B
<CODE>stty</CODE> $B%W%m%0%i%`$K$h$C$F$b9T$($^$9!#(B <CODE>stty</CODE> $B$O!"LdBj$,$"$k$H$-(B
$B$K8=:_$N>uBV$rI=<($9$kLr$K$bN)$A$^$9!#(BSerial-HOWTO $BCf$N(B ``stty'' $B$N>O(B
$B$r$4Mw$/$@$5$$!#(BLinux $B$,5/F0$9$k$H$-$K$O!"$$$/$D$+$N%7%j%"%k%]!<%H$N8!(B
$B=P$H(B($BDc%l%Y%k(B)$B@_Dj$,;n$_$i$l$^$9!#@53N$K$I$&$J$k$N$+$O!"$*;H$$$N(B BIOS, 
$B%O!<%I%&%'%"!"(B Linux $B%G%#%9%H%j%S%e!<%7%g%s$J$I$K$h$C$F0c$$$^$9!#%7%j(B
$B%"%k%]!<%H$,$&$^$/F0:n$7$F$$$k$J$i$P!"2?$b$9$kI,MW$O$"$j$^$;$s!#%"%W%j(B
$B%1!<%7%g%s%W%m%0%i%`$OB?$/$N>l9g!"9b%l%Y%k$N@_Dj$r9T$$$^$9$,!"I,MW$J>p(B
$BJs$rM?$($kI,MW$,$"$k$+$b$7$l$^$;$s!#(B($BFbB"%b%G%`$KAH$_9~$^$l$k$3$H$,B?(B
$B$$(B)$B%W%i%0(B&amp;$B%W%l%$$N%7%j%"%k%]!<%H$G$O!";v>p$O$:$C$HJ#;($K$J$j$^$9!#(B
$BDc%l%Y%k$N@_Dj(B(IRQ $B$H(B I/O $B%"%I%l%9$N@_Dj(B)$B$r9T$&I,MW$,$"$k>l9g$r0J2<$K(B
$B<($7$^$9(B:</P>

<P>
<UL>
<LI> 3 $B$D0J>e$N%7%j%"%k%]!<%H$r;H$&>l9g(B </LI>
<LI> $B?7$7$$%7%j%"%k%]!<%H(B($BFbB"%b%G%`$J$I(B)$B$r%$%s%9%H!<%k$9$k>l9g(B </LI>
<LI> $B%7%j%"%k%]!<%H$GLdBj$,5/$-$?>l9g(B </LI>
</UL>
</P>

<P>$B%P!<%8%g%s(B 2.2 $B0J9_$N%+!<%M%k$G$O!"3d9~$_$N6&M-$r;H$($PDc%l%Y%k$N@_Dj(B
$B$r9T$o$J$/$F$b(B 3 $B$D0J>e$N%7%j%"%k%]!<%H$r;H$($^$9!#$3$N6&M-$O%7%j%"%k(B
$B%]!<%H$N%O!<%I%&%'%"$,BP1~$7$F$$$k>l9g$K$N$_F0:n$7$^$9$,!"Dc%l%Y%k$N@_(B
$BDj$h$j4JC1$H$O$$$($^$;$s!#(B
<A HREF="#int_share-2.2">2.2 $B0J9_$N%+!<(B $B%M%k$H3d9~$_$N6&M-(B</A> $B$r$4Mw$/$@$5$$!#(B</P>

<P> 
$BDc%l%Y%k$N@_Dj(B(IRQ $B$H(B I/O $B%"%I%l%9$N@_Dj(B)$B$O!"(B($B9b%l%Y%k$N@_Dj$HHf$Y$k$H(B) 
$BHf3SE*LdBj$r5/$3$7$d$9$$$h$&$G$9!#B?$/$N>l9g$O40A4$K<+F0$G!"2?$b@_Dj$9(B
$B$k$3$H$,$J$$$N$K$G$9!#$=$3$G!"$3$N>O$NBgItJ,$O$=$NOCBj$r07$$$^$9!#%7%j(B
$B%"%k%I%i%$%P$,@5$7$$(B IRQ $B$H(B I/O $B%"%I%l%9$rCN$k$^$G$O!"%]!<%H$OA4$/F0:n(B
$B$7$J$$$G$7$g$&!#(BLinux $B$G$O8!=P$5$($5$l$J$$$G$7$g$&!#8!=P$5$l$?$H$7$F$b!"(B 
IRQ $B$,4V0c$C$F$$$l$P!"F0:n$O6K$a$FCY$$$+$b$7$l$^$;$s!#(B 
<A HREF="Modem-HOWTO-16.html#slow_">$B$3$N>e$J$/CY$$(B: $B%F%-%9%H$,$9$4$/CY$l$F$f$C$/$j2hLL$KI=<($5$l$^$9(B </A> $B$r8+$F$/$@$5$$!#(B</P>


<P>Wintel $B$N@$3&$G$O!"(BI/O $B%"%I%l%9$H(B IRQ $B$O!V%j%=!<%9!W$H8F$P$l$^$9!#=>$C(B
$B$F!"2f!9$OFCDj$N%j%=!<%9$r@_Dj$7$F$$$k$3$H$K$J$j$^$9!#$7$+$7!"!V%j%=!<(B
$B%9!W$K$OB?$/$N<oN`$,$"$k$N$G!"$3$NC18l$K$OB>$K$b?'!9$J0UL#$,$"$j$^$9!#(B
$BI|=,$K$J$j$^$9$,!"Dc%l%Y%k$N@_Dj$O(B 2 $B$D$NCM(B(IRQ $BHV9f$H(B I/O )$B%"%I%l%9$r(B 
2 $B$D$N>l=j$K@_Dj$9$k$3$H$G$9(B:</P>

<P>
<OL>
<LI> $B%G%P%$%9%I%i%$%P(B($BB?$/$N>l9g!"5/F0;~$K(B ``<CODE>setserial</CODE>'' $B$r<B9T(B
$B$7$F@_Dj$7$^$9(B)</LI>
<LI> $B%7%j%"%k%]!<%H$N%O!<%I%&%'%"$=$N$b$N$N%a%b%j%l%8%9%?(B</LI>
</OL>
</P>

<P>$B5/F0(B(= $B%V!<%H;~(B)$B%a%C%;!<%8$r8+$F$/$@$5$$!#$3$l$ODL>o$O@5$7$$$G$9!#$7$+(B
$B$7LdBj$,5/$-$F$$$k>l9g$K$O!"$3$l$i$N%a%C%;!<%8$N0lIt$,%O!<%I%&%'%"$N@5(B
$B$7$$@_Dj$r<($7$F$$$J$$(B($B$=$7$F@5$7$/$J$$$H;W$o$l$k(B)$B2DG=@-$,9b$$$G$9!#(B 
<A HREF="#boot_mesgs">I/O $B%"%I%l%9$H(B IRQ: $B5/F0;~$N%a%C%;!<%8(B</A> $B$r(B
$B$4Mw$/$@$5$$!#(B</P>


<H2><A NAME="ss6.3">6.3</A> <A HREF="Modem-HOWTO.html#toc6.3">$B$"$j$U$l$?4V0c$$$G5/$-$?Dc%l%Y%k@_Dj$N$d$jD>$7(B</A>
</H2>

<P> $BB?$/$N?M$,$d$C$F$7$^$&0lHLE*$J4V0c$$$r<($7$^$9(B:</P>
<P>
<UL>
<LI><CODE>setserial</CODE> $B%3%^%s%I(B: (<CODE>autoconfig</CODE> $B%*%W%7%g%s$rIU$1$:$K(B)
<CODE>setserial</CODE> $B$r<B9T$7!"%O!<%I%&%'%"$bD4$Y$i$l$?$H;W$$9~$`(B($B<B:]$K$OD4(B
$B$Y$i$l$^$;$s(B)</LI>
<LI><CODE>setserial</CODE> $B$N%a%C%;!<%8(B: $B5/F0;~$K2hLL$KI=<($5$l$k%a%C%;!<%8(B
$B$r8+$F!"%O!<%I%&%'%"$,<B:]$K@_Dj$5$l$?7k2L$@$H4V0c$C$F?.$8$F$7$^$&(B</LI>
<LI><CODE>/proc/interrupt</CODE>: $B%7%j%"%k%]!<%H$,;H$o$l$F$$$J$$$H$-$O!"(B
$B$=$N3d9~$_$O(B <CODE>/proc/interrupts</CODE> $B$K8=$o$l$J$$$,!"$=$l$r8+$F%7%j(B
$B%"%k%]!<%H$,8+$D$+$i$J$$(B($B$"$k$$$O3d9~$_$,@_Dj$5$l$F$$$J$$(B)$B$H8m$C$F?.$8(B
$B$F$7$^$&(B</LI>
<LI><CODE>/proc/ioports</CODE>: $B$3$N%U%!%$%k$,(B($B$?$V$s4V0c$$$G(B)
<CODE>setserial</CODE> $B$HF1$8%G!<%?$7$+I=<($7$F$$$J$$$H$-!"$3$l$,%O!<%I%&%'%"@_(B
$BDj$rI=<($9$k$H9M$($F$7$^$&(B</LI>
</UL>
</P>


<H2><A NAME="boot_mesgs"></A> <A NAME="ss6.4">6.4</A> <A HREF="Modem-HOWTO.html#toc6.4">I/O $B%"%I%l%9$H(B IRQ: $B5/F0;~$N%a%C%;!<%8(B </A>
</H2>

<P> $BB?$/$N>l9g!"%]!<%H$NDc%l%Y%k$N@_Dj$O5/F0;~$K<+F0E*$K9T$o$l$^$9(B($B$7(B
$B$+$7>o$K@5$7$$$H$O8B$j$^$;$s(B)$B!#2?$,5/$-$F$$$k$+D4$Y$k$K$O!"2hLL>e$N5/(B
$BF0%a%C%;!<%8$r8+$^$7$g$&!#(BLinux $B$,%m!<%I$5$l$kA0$K(B BIOS $B$,=P$9%a%C%;!<(B
$B%8(B($BNc$O5s$2$^$;$s(B)$B$N3NG'$bBU$i$J$$$G$/$@$5$$!#(BBIOS $B$N%a%C%;!<%8$O(B 
Pause $B%-!<$r2!$;$P0lC6;_$^$j$^$9!#%9%/%m!<%k$7$FN.$l$F$7$^$C$?%a%C%;!<(B
$B%8$r8+$k$K$O!"(BShift-PageUp $B$r;H$$$^$9!#(BShift-PageDown $B$G$O2<8~$-$K%9%/(B
$B%m!<%k$7$^$9!#(B<CODE>dmesg</CODE> $B%3%^%s%I$r;H$($P$$$D$G$b5/F0%a%C%;!<%8$N0lIt(B
$B$r8+$k$3$H$,$G$-$^$9$,!"Bg;v$JItJ,$,H4$1Mn$A$F$$$k$3$H$b$h$/$"$j$^$9!#(B
$B5/F0%a%C%;!<%8(B(1999 $BH>$P$N;~E@(B)$B$NNc$r0J2<$K<($7$^$9(B: <CODE>ttyS00</CODE> $B$O(B 
<CODE>/dev/ttyS0</CODE> $B$HF1$8$G$"$kE@$KCm0U$7$F$/$@$5$$!#(B</P>

<P>
<BLOCKQUOTE><CODE>
<PRE>
$B8!=P$5$l$?$b$N$,:G=i$KI=<($5$l$^$9(B($B$?$@$7(B IRQ $B$OBg;(GD$K?dDj$7$?$b$N$K(B
$B2a$.$^$;$s(B):

Serial driver version 4.27 with no serial options enabled
ttyS00 at 0x03f8 (irq = 4) is a 16550A
ttyS01 at 0x02f8 (irq = 3) is a 16550A
ttyS02 at 0x03e8 (irq = 4) is a 16550A

$BJ]B8$5$l$?CM$,8e$GI=<($5$l$^$9$,!"$3$l$b@5$7$$$H$O8B$j$^$;$s(B:

Loading the saved-state of the serial devices...
/dev/ttyS0 at 0x03f8 (irq = 4) is a 16550A
/dev/ttyS1 at 0x02f8 (irq = 3) is a 16550A
/dev/ttyS2 at 0x03e8 (irq = 5) is a 16550A
</PRE>
</CODE></BLOCKQUOTE>
</P>


<P>$B$A$g$C$H$7$?IT0lCW$,$"$kE@$KCm0U$7$F$/$@$5$$!#:G=i$N%a%C%;!<%8$G$O(B 
IRQ=4 $B$K(B <CODE>ttyS2</CODE> $B$,$"$k$h$&$KI=<($5$l$F$$$^$9$,!"FsHVL\$N%a%C%;!<%8(B
$B$G$O(B IRQ=5 $B$K$J$C$F$$$^$9!#:G=i$N%a%C%;!<%8$7$+I=<($5$l$J$$$3$H$b$"$j(B
$B$^$9!#$[$H$s$I$N>l9g$O:G8e$KI=<($5$l$k$b$N$,@5$7$$%a%C%;!<%8$G$9!#$7$+(B
$B$7LdBj$,$"$k>l9g$K$OJ6$i$o$7$$$+$b$7$l$^$;$s!#$3$N>O$N;D$j$K=q$+$l$F$$(B
$B$k$3$NFq$7$$8=>]$N@bL@$rFI$`A0$K!"$H$j$"$($:%7%j%"%k%]!<%H$r;H$C$F$_$F!"(B
$B@5$7$/F0:n$9$k$+$I$&$+$rD4$Y$k$H$h$$$G$7$g$&!#$A$c$s$HF0:n$7$F$$$k$J$i(B
$B$P!"$3$N@h$OFC$KFI$^$J$/$F$b$+$^$$$^$;$s!#(B</P>

<P>2 $BHVL\$N%a%C%;!<%8$O!"5/F0;~$K<B9T$5$l$k(B <CODE>setserial</CODE> $B%W%m%0%i%`$,=P(B
$BNO$7$^$9!#$3$N%a%C%;!<%8$O!"%G%P%$%9%I%i%$%P$,@5$7$$$H;W$C$F$$$k@_Dj$r(B
$B<($7$^$9!#$7$+$7!"$3$l$b4V0c$C$F$$$k$3$H$,$"$j$^$9!#Nc$($P!"%O!<%I%&%'(B
$B%"$N(B IRQ $B$,<B:]$K$O(B IRQ=8 $B$K@_Dj$5$l$F$$$k$3$H$b$"$j$^$9(B($B$I$A$i$N%a%C(B
$B%;!<%8$b4V0c$C$F$$$^$9(B)$B!#(BIRQ=5 $B$,I=<($5$l$k$N$O!"C/$+$,4V0c$C$F$=$N>p(B
$BJs$r@_Dj%U%!%$%k$KF~$l$?$+$i(B($B$"$k$$$O$3$l$HF1MM$NM}M3(B)$B$G$9!#(BLinux $B$,$H(B
$B$-$I$-4V0c$C$?(B IRQ $B$r<hF@$9$k$N$O!"(BLinux $B$,(B IRQ $B$NC5::$r9T$o$J$$$+$i$G(B
$B$9!#(B Linux $B$OC1$K!VI8=`!W$N(B IRQ $B$r2>Dj$9$k$+(B($B:G=i$N%a%C%;!<%8(B)$B!"%f!<%6(B
$B$,9T$C$?@_Dj$r$=$N$^$^;H$$$^$9(B(2$BHVL\$N%a%C%;!<%8(B)$B!#$3$NN><T$O$$$:$l$b!"(B
$B@5$7$$$H$O8B$j$^$;$s!#%7%j%"%k%I%i%$%P$N(B IRQ $B$,4V0c$C$F$$$k$H!"%7%j%"(B
$B%k%]!<%H$NF0:n$,Hs>o$KCY$/$J$C$?$j!"$^$C$?$/F0:n$7$F$$$J$$$h$&$K8+$($?(B
$B$j$7$^$9!#(B</P>

<P>$B:G=i$N%a%C%;!<%8$O!"(BLinux $B$,%7%j%"%k%]!<%H$NC5::$r9T$C$?7k2L$G$9$,!"(B
IRQ $B$r8!=P$G$-$F$$$^$;$s!#%]!<%H$,$3$3$K8=$o$l$?>l9g!"$=$N%]!<%H$OB8:_(B
$B$7$^$9$,!"(BIRQ $B$O4V0c$C$F$$$k$3$H$,$"$j$^$9!#(BLinux $B$O(B IRQ $B$N%A%'%C%/$O(B
$B9T$$$^$;$s!#$J$<$J$i!"%A%'%C%/$r$7$F$b%U!<%k%W%k!<%U$K$J$i$J$$$+$i$G$9!#(B
Linux $B$O(B IRQ $B$,@h$K<($7$?CM$G$"$k$3$H$r2>Dj$7$^$9!#$J$<$J$i!"$3$l$i$,(B
$B!VI8=`E*!W$JCM$@$+$i$G$9!#(B <CODE>setserial</CODE> $B$K(B <CODE>autoconfig</CODE> $B%*%W%7%g(B
$B%s$H(B <CODE>auto_irq</CODE> $B%*%W%7%g%s$rIU$1$F<B9T$7!"<jF0$G3NG'$r9T$&$3$H$,$G(B
$B$-$^$9!#$7$+$7!"$3$NCM$,@5$7$$J]>Z$O$"$j$^$;$s!#(B</P>


<P>BIOS $B$N%a%C%;!<%8$KI=<($5$l$k%G!<%?(B($B:G=i$KI=<($5$l$k(B)$B$O%O!<%I%&%'%"$K(B
$B@_Dj$5$l$F$$$kCM$G$9!#%7%j%"%k%]!<%H$,%W%i%0(B&amp;$B%W%l%$$J$i$P!"(B 
<CODE>isapnp</CODE> $B$r<B9T$7$F$3$l$i$N@_Dj$rJQ$($k$3$H$,$G$-$^$9!#(BLinux $B$,5/F0(B
$B$7$?8e$K!"$3$l$K4X$9$k%a%C%;!<%8$rC5$7$^$7$g$&!#@h$NNc$K5s$2$i$l$F$$$k!"(B
$B:G8e$N%7%j%"%k%]!<%H$N%a%C%;!<%8$O!"(BBIOS $B$N%a%C%;!<%8$H0lCW$7$F$$$J$1(B
$B$l$P$J$j$^$;$s!#0lCW$7$J$$>l9g$K$O!"%]!<%H$N%O!<%I%&%'%"$N@_Dj$rJQ99$9(B
$B$k$+!"%O!<%I%&%'%"$K<B:]$K@_Dj$5$l$F$$$kFbMF$r(B setserial $B$r;H$C$F%I%i(B
$B%$%P$K65$($J$/$F$O$J$j$^$;$s!#(B</P>


<P>$B$^$?!"%W%i%0(B&amp;$B%W%l%$$N%7%j%"%k%]!<%H$r$*;H$$$N>l9g$K$O!"%W%i%0(B&amp;
$B%W%l%$$N%=%U%H%&%'%"$,%O!<%I%&%'%"FbIt$N(B IRQ $B$H(B I/O $B$r@_Dj$7$J$1$l$P!"(B 
Linux $B$O$3$l$i$r8!=P$7$^$;$s!#$3$l$O!"J*M}E*$KB8:_$9$k%7%j%"%k%]!<%H$,(B
$B5/F0%a%C%;!<%8$GI=<($5$l$J$$0lHLE*$JM}M3$G$9!#(BPC $B$N%O!<%I%&%'%"(B(PnP
BIOS) $B$O$3$N$h$&$J%7%j%"%k%]!<%H$NDc%l%Y%k$J@_Dj$r<+F0E*$K9T$$$^$9!#(B
PnP $B$N@_Dj$O8e$G@bL@$7$^$9!#(B</P>


<H2><A NAME="what_is_io_irq"></A> <A NAME="ss6.5">6.5</A> <A HREF="Modem-HOWTO.html#toc6.5">$B%7%j%"%k%]!<%H$N8=:_$N(B I/O $B%"%I%l%9$H(B IRQ $B$N@_Dj$O(B?</A>
</H2>

<P> $BA0$N@a$G$O!"5/F0%a%C%;!<%8$r8+$F@_Dj$rD4$Y$kJ}K!$r@bL@$7$^$7$?!#5/(B
$BF0%a%C%;!<%8$G==J,$J>pJs$,F@$i$l$l$P!"$3$N@a$rFI$`I,MW$O$"$j$^$;$s!#>p(B
$BJs$,==J,$G$J$1$l$P!"$3$l$rD4$Y$kJ}K!$,$$$/$D$+$"$j$^$9!#(B</P>

<P>$B!V(BI/O $B$H(B IRQ $B$N@_Dj$O$I$&$J$C$F$$$k$N(B?$B!W$H$$$&Ld$X$NEz$($O<B:]$K$O(B 2 
$BDL$j$"$j$^$9!#(B</P>
<P>
<UL>
<LI>$B%G%P%$%9%I%i%$%P$K@_Dj$5$l$F$$$kCM(B($B$?$$$F$$(B setserial $B$G@_Dj$HI=(B
$B<($r9T$$$^$9(B)$B!#(B</LI>
<LI>$B<B:]$K%O!<%I%&%'%"$K@_Dj$5$l$F$$$kCM!#(B</LI>
</UL>
</P>
<P>$BN><T$OF1$8CM$G$J$1$l$P$J$j$^$;$s!#$=$&$J$C$F$$$J$$$H!"%I%i%$%P$,;}$C$F(B
$B$$$kJ*M}E*$J%7%j%"%k%]!<%H$K4X$9$k>pJs$,4V0c$C$F$$$k$N$G!"LdBj$r0z$-5/(B
$B$3$7$^$9!#4V0c$C$?(B I/O $B%"%I%l%9$,%I%i%$%P$K@_Dj$5$l$F$$$k$H!"%I%i%$%P(B
$B$OB8:_$7$J$$%]!<%H$K%G!<%?$rAw$m$&$H$7$^$9!#$"$k$$$O$b$C$H0-$$%1!<%9$H(B
$B$7$F$O!"%7%j%"%k%]!<%H$G$J$$<B:_$N%]!<%H$K%G!<%?$rAw$m$&$H$7$^$9!#4V0c$C(B
$B$?(B IRQ $B$,%I%i%$%P$K@_Dj$5$l$F$$$k$H!"%I%i%$%P$,%7%j%"%k%]!<%H$+$i$N3d(B
$B9~$_%5!<%S%9MW5a$r<u$1<h$l$:$K!"%7%j%"%k%]!<%H$N%P%C%U%!$,0n$l$?$jH?1~(B
$B$,Hs>o$KCY$/$J$k2DG=@-$,$"$j$^$9!#(B 
<A HREF="Modem-HOWTO-16.html#slow_">$B$3$N>e$J$/CY(B $B$$(B: $B%F%-%9%H$,$9$4$/CY$l$F$f$C$/$j2hLL$KI=<($5$l$^$9(B</A> $B$r$4Mw$/$@$5$$!#(B
$B%I%i%$%P$K@_Dj$5$l$F$$$k(B UART $B$N%b%G%k$,4V0c$C$F$$$k>l9g$K$bLdBj$,5/$-(B
$B$d$9$$$G$9!#(BI/O - IRQ $B$NAH$,%I%i%$%P$H%O!<%I%&%'%"$GF1$8$+$I$&$+$r3N$+(B
$B$a$k$K$O!"%I%i%$%P$H%O!<%I%&%'%"$NAPJ}$,$I$N$h$&$K@_Dj$5$l$?$+3N$+$a$k(B
$BI,MW$,$"$j$^$9!#(B</P>


<H3>$B%G%P%$%9%I%i%$%P$N@_Dj$O(B?</H3>

<P> $B$3$l$rD4$Y$k$N$O4JC1$G$9!#C1$K5/F0%a%C%;!<%8$r8+$k$+!"(B 
``<CODE>setserial - g /dev/ttyS*</CODE>'' $B$r<B9T$9$k$@$1$G$9!#%7%j%"%k%]!<(B
$B%H$,$&$^$/F0:n$7$F$$$l$P!"$3$NI=<(FbMF$,%O!<%I%&%'%"$K$b@_Dj$5$l$F$$$k(B
$B$G$7$g$&!#$3$N>pJs$rD4$Y$kJL$NJ}K!$H$7$F$O!"(B<CODE>/proc</CODE> $B%G%#%l%/%H(B
$B%j$K$"$k!V%U%!%$%k!W$r8+$kJ}K!$,$"$j$^$9!#$3$N$h$&$JJL$NJ}K!$r@bL@$9$k(B
$B=EMW$JM}M3$O!"$3$l$i$O%G%P%$%9%I%i%$%P$K@_Dj$5$l$F$$$k>pJs$7$+I=<($7$J(B
$B$$$3$H$KCm0U$7$F$b$i$&$?$a$G$9!#0lIt$N?M$O!"(B<CODE>/proc</CODE> $B%G%#%l%/%H(B
$B%j$K$"$kFCDj$N%U%!%$%k$r8+$F!"$3$l$,%O!<%I%&%'%"$K@_Dj$5$l$F$$$k$H4*0c(B
$B$$$7$F$7$^$$$^$9$,!"!VI,$:$7$b$=$&$G$O$"$j$^$;$s!W!#(B</P>


<P><CODE>/proc/ioports</CODE> $B$O!"%I%i%$%P$,;H$C$F$$$k(B I/O $B%"%I%l%9$rI=<($7$^(B
$B$9!#(B <CODE>/proc/interrupt</CODE> $B$O!"8=:_F0:n$7$F$$$k(B($B%G%P%$%9$r%*!<%W%s(B
$B$7$?(B)$B%W%m%;%9$N%I%i%$%P$,;H$C$F$$$k(B IRQ $B$rI=<($7$^$9!#>e5-$N$$$:$l$N>l(B
$B9g$b!"I=<($5$l$k$N$O%I%i%$%P$N@_DjFbMF$G$"$j!"%O!<%I%&%'%"$N<B:]$N@_Dj(B
$BFbMF$G$OI,$:$7$b$"$j$^$;$s!#(B<CODE>/proc/interrupt</CODE> $B$O!"$=$l$>$l$N%G(B
$B%P%$%9$KBP$7$F3d9~$_$,$$$/$DH/9T$5$l$?$N$+$bI=<($7$^$9(B($B?t@i8D$N$3$H$b(B
$B$h$/$"$j$^$9(B)$B!#$3$N>pJs$+$iLdBj2r7h$N<j$,$+$j$r$D$+$`$3$H$,$G$-$^$9!#(B
$B$J$<$J$i!"BgNL$N3d9~$_$,H/9T$5$l$F$$$l$P!"$=$N3d9~$_$r;H$C$F$$$k%O!<%I(B
$B%&%'%"$,$I$3$+$K$"$k$H$$$&$3$H$@$+$i$G$9!#3d9~$_$,>/$7$7$+I=<($5$l$J$$(B
$B$3$H$O!"$H$-$K$=$N3d9~$_$,<B:]$K$O$I$N%7%j%"%k%]!<%H$K$h$C$F$bJ*M}E*$K(B
$B@8@.$5$l$F$$$J$$$3$H$r0UL#$7$^$9!#=>$C$F!";H$*$&$H$7$F$$$k%7%j%"%k%]!<(B
$B%H$KBP$7$F$[$H$s$I3d9~$_$,H/9T$5$l$F$$$J$1$l$P!"%O!<%I%&%'%"$K$O3d9~$_(B
$B$,@_Dj$5$l$F$$$J$$$+$b$7$l$:!"$D$^$j%I%i%$%P$,4V0c$C$?3d9~$_$r;H$C$F$$(B
$B$k$H$$$&$3$H$+$b$7$l$^$;$s!#8=:_<B9TCf$N(B(``minicom'' $B$N$h$&$J(B)$B%W%m%0%i(B
$B%`$r%A%'%C%/$9$k$?$a$K(B <CODE>/proc/interruputs</CODE> $B$r8+$k$K$O!"$3$N%U%!(B
$B%$%k$r8+$F$$$k4V$O$:$C$H%W%m%0%i%`$r<B9T$7B3$1$kI,MW$,$"$j$^$9!#$3$l$r(B
$B9T$&$K$O!"%W%m%0%i%`$r=*N;$;$:$K%7%'%k$K9T$C$F$_$^$7$g$&!#(B</P>


<H3><A NAME="io-irq_in_hdw"></A> $B%7%j%"%k%]!<%H$N%O!<%I%&%'%"$N@_Dj$O(B? </H3>

<P> $B%G%P%$%9$N%O!<%I%&%'%"$K<B:]$K$I$N(B I/O $B%"%I%l%9$H(B IRQ $B$,@_Dj$5$l$F(B
$B$$$k$N$+$rD4$Y$k$K$O$I$&$9$l$P$$$$$N$G$7$g$&$+(B? Linux $B$,5/F0$r;O$a$kA0(B
$B$K!"B?J,(B BIOS $B$N%a%C%;!<%8$,$"$kDxEY$N>pJs$r65$($F$/$l$k$G$7$g$&!#(B 
Shift-PageUp $B%-!<$r;H$C$F5/F0%a%C%;!<%8$NI=<($rLa$7!"(BBIOS $B$,=P$7$?0lHV(B
$B:G=i$N%a%C%;!<%8$r8+$^$7$g$&!#$3$l$O(B Linux $B$,5/F0$9$kA0$N@_Dj$G$9!#(B 
setserial $B$O$3$N@_Dj$rJQ$($k$3$H$O$G$-$^$;$s$,!"(Bisapnp $B$d(B pciutils $B$O(B
$B@_Dj$rJQ$($k$3$H$,$G$-$^$9!#(B</P>

<P>$BBg;(GD$JJ}K!$N0l$D$H$7$F!"(B``<CODE>autoconfig</CODE>'' $B%*%W%7%g%s$rIU$1$F(B 
setserial $B$K8!=P$r9T$o$;$F$_$kJ}K!$,$"$j$^$9!#$3$NJ}K!$G$O!"8!=P$r9T$&(B
$B%"%I%l%9$r?dDj$9$kI,MW$,$"$j$^$9!#(B 
<A HREF="Modem-HOWTO-9.html#set_serial">setserial $B$H$O2?$+(B?  </A> $B$r8+$F$/$@$5$$!#(BPCI $B%7%j%"%k%]!<%H$N>l9g(B
$B$K$O!"(B``<CODE>lspci</CODE>'' $B%3%^%s%I$r;H$C$F$/$@$5$$(B($B%+!<%M%k(B 2.2 $BL$K~$G$O(B 
<CODE>/proc/pci</CODE> $B$r8+$F$/$@$5$$(B)$B!#$*;H$$$N%7%j%"%k%]!<%H$,%W%i%0(B
&amp;$B%W%l%$$J$i$P!"0J2<$N(B 2 $B$D$N@a$r8+$F$/$@$5$$!#(B</P>

<P>$B%8%c%s%Q$G@_Dj$7$?%]!<%H$N>l9g$O!"$3$l$O%8%c%s%Q$G@_Dj$7$?FbMF$G$9!#%]!<(B
$B%H$,%W%i%0(B&amp;$B%W%l%$(B(PnP)$B$G$O$J$$$1$l$I(B DOS $B%W%m%0%i%`$r;H$C$F@_Dj$5(B
$B$l$F$$$k>l9g$K$O!"$=$N%W%m%0%i%`$r<B9T$7$??M$,@_Dj$7$?$h$&$K@_Dj$5$l$F(B
$B$$$^$9!#(B</P>


<H3>PnP $B%7%j%"%k%]!<%H$N%O!<%I%&%'%"$N@_Dj$O(B?</H3>

<P> PnP $B%7%j%"%k%]!<%H$O!"EE8;$r@Z$C$?$H$-$K@_Dj$r%O!<%I%&%'%"$KJ]B8$7(B
$B$^$;$s!#$3$l$O!"EE8;$r@Z$C$F$b@_Dj$,JQ$o$i$J$$%8%c%s%Q(B($BHs(B PnP)$B$HBP>HE*(B
$B$G$9!#(BISA PnP $B%7%j%"%k%]!<%H$r$*;H$$$G$"$l$P!"%7%j%"%k%]!<%H$,A4$/(B I/O 
$B%"%I%l%9$d(B IRQ $B$r;}$?$:!";v<B>e;H$($J$$>uBV$K$J$k2DG=@-$,$"$j$^$9!#$3(B
$B$N>l9g$G$b$^$@!"(B<CODE>pnpdump</CODE> $B$r;H$C$F$=$N%7%j%"%k%]!<%H$r8+$D$1$k$3$H(B
$B$,2DG=$J$O$:$G$9!#(B</P>


<P>ISA $B%P%9$G$N%W%i%0(B&amp;$B%W%l%$$N>l9g!"(B<CODE>pnpdump</CODE> (<CODE>isapnptools</CODE> $B$K(B
$B4^$^$l$F$$$^$9(B)$B$r;n$9$H$h$$$G$7$g$&!#(B<CODE>--dumpregs</CODE> $B%*%W%7%g(B
$B%s$r;H$&$H!"%]!<%H$K@_Dj$5$l$F$$$k<B:]$N(B I/O $B%"%I%l%9$H(B IRQ $B$,I=<($5$l(B
$B$k$O$:$G$9!#(B <CODE>pnpdump</CODE> $B$,!V;n$7$?!W%"%I%l%9$O%G%P%$%9$N(B I/O $B%"%I%l(B
$B%9$G$O$J$/!"FC<l$J$b$N$G$9!#(B</P>

<P>PnP $B%]!<%H$rD4$Y$k$KEv$?$C$F$O!"(BDOS/Windows $B$G$N@_DjFbMF$O$"$^$jLr$KN)(B
$B$A$^$;$s!#(BWindows $B$O@_Dj>pJs$r%l%8%9%H%j$KJ]B8$7$^$9$,!"$3$l$O(B Linux 
$B$G$O;H$o$l$^$;$s!#$3$l$O2?$i$+$N>pJsIU$-$G(B BIOS $B$NIT4xH/@-%a%b%j$K@_Dj(B
$B$5$l$k$3$H$b$"$j$^$9$,!"%l%8%9%H%jFb$K$"$k(B Windows $B$N8=:_$N@_Dj$H$OF1(B
$B4|$,<h$l$F$$$J$$$3$H$,$"$j$^$9!#(BLinux $B$N5/F0;~$K(B PnP BIOS $B$K<+F0@_Dj$r(B
$B$5$;$F$$$k$N$J$i$P(B($B$=$7$F(B Linux $B$r5/F0$9$k:]$K$O!"(BPnP $B%*%Z%l!<%F%#%s%0(B
$B%7%9%F%`$G$J$$$H(B BIOS $B$r@_Dj$7$F$$$k$J$i$P(B)$B!"(BLinux $B$O(B BIOS $B$NIT4xH/@-(B
$B%a%b%jFb$N@_Dj$r;H$&$O$:$G$9!#(B</P>


<H2><A NAME="ss6.6">6.6</A> <A HREF="Modem-HOWTO.html#toc6.6">$B%7%j%"%k$N(B IRQ $B$NA*Br(B </A>
</H2>

<P> OS $B$+(B PnP BIOS $B$,A4$F$N%G%P%$%9$r@_Dj$9$k$H$$$&K\J*$N%W%i%0(B&amp;$B%W(B
$B%l%$@_Dj$r9T$C$F$$$k$J$i$P!"(BIRQ $B$rA*$V$3$H$O$"$j$^$;$s!#(BPnP $B$O:G$bNI$$(B
$B$H;W$o$l$k3d$jEv$F$rA*$s$G$3$l$r@_Dj$7$^$9!#$7$+$7!"(BLinux $B$G%W%i%0(B
&amp;$B%W%l%$MQ$N%D!<%k(B (isapnp $B$H(B pcitools) $B$r;H$C$F$$$k>l9g$K$O!"(BIRQ 
$B$NA*Br$r9T$&I,MW$,$"$j$^$9!#;H$$$?$$(B IRQ $B$r4{$KCN$C$F$$$k>l9g$K$O!"$3(B
$B$N@a$rHt$P$7$F$b$+$^$$$^$;$s$,!"(BIRQ 0 $B$N;H$$J}$,FC<l$G$"$k$3$H$@$1$OCN$C(B
$B$F$*$$$F$/$@$5$$(B($B<!$NCJMn$rFI$s$G$/$@$5$$(B)$B!#(B</P>


<H3>IRQ 0 $B$O(B IRQ $B$G$O$J$$(B</H3>

<P> IRQ 0 $B$O<B:]$K$O(B($B%O!<%I%&%'%"$G$O(B)$B%?%$%^$G$9$,!"(Bsetserial $B$r;H$C$?(B
$B%7%j%"%k%]!<%H$N@_Dj$K$*$$$F$OFC<l$J0UL#$r;}$C$F$$$^$9!#$3$N;XDj$O!"$=(B
$B$N%]!<%H$K$O3d9~$_$,$J$$$3$H$r%I%i%$%P$KEA$(!"%I%i%$%P$O%]!<%j%s%0$r;H$C(B
$B$?F0:n$r9T$$$^$9!#%]!<%j%s%0$OHs>o$K8zN($,0-$$$N$G$9$,!"3d9~$_$,>WFM$7(B
$B$?>l9g$d!"3d9~$_$N@_Dj%_%9$,$"$C$?>l9g$K$O;n$9$H$h$$$G$7$g$&!#(B IRQ 0 
$B$r@_Dj$9$kMxE@$O!"%O!<%I%&%'%"$K@_Dj$5$l$F$$$k3d9~$_HV9f$rCN$kI,MW$,$J(B
$B$$E@$G$9!#(BIRQ 0 $B$O!"<B:]$K;H$($k3d9~$_$,8+$D$+$k$^$G$N5^>l$r$7$N$0$?$a(B
$B$@$1$K;H$&$Y$-$G$9!#(B</P>


<H3><A NAME="int_share-2.2"></A> $B3d9~$_$N6&M-$H%P!<%8%g%s(B 2.2 $B0J9_$N%+!<%M%k(B</H3>

<P> $B0lHLE*$J5,B'$G$O!"A4$F$N%G%P%$%9$,8GM-$N(B IRQ $B$r;}$A!"(BIRQ $B$N6&M-$r(B
$B9T$o$J$$$3$H$K$J$C$F$$$^$9!#$7$+$7BgDq$N%^%k%A%]!<%H$r;H$&>l9g$N$h$&$K!"(B 
IRQ $B$N6&M-$,5v$5$l$F$$$k>l9g$b$"$j$^$9!#$?$@$7!"6&M-$,5v$5$l$F$$$k$H$7(B
$B$F$b!"8zN($ONI$/$J$$$+$b$7$l$^$;$s!#$H$$$&$N$b!"6&M-$5$l$F$$$k3d9~$_$,(B
$BM?$($i$l$kEY$K!"$I$3$G3d9~$_$,H/9T$5$l$?$N$+$rD4$Y$J$1$l$P$J$i$J$$$+$i(B
$B$G$9!#$7$?$,$C$F!"2DG=$G$"$l$P!"A4$F$N%G%P%$%9$K8GM-$N3d9~$_$rM?$($k$H(B
$B$$$$$G$7$g$&!#(B</P>


<P>$B%P!<%8%g%s(B 2.2 $B$h$jA0$N%+!<%M%k$G$O!"(BIRQ $B$O$[$H$s$I$N%^%k%A%]!<%H%\!<(B
$B%IF1;N$@$1$G$7$+6&M-$G$-$^$;$s$G$7$?!#%P!<%8%g%s(B 2.2 $B$N%+!<%M%k0J9_$O!"(B
$B>l9g$K$h$C$F$OA4$F$N%7%j%"%k%]!<%H$G(B IRQ $B$r6&M-$G$-$^$9!#%P!<%8%g%s(B 
2.2 $B$N%+!<%M%k$G6&M-$rF0:n$5$;$k$K$O!"(B<CODE>CONFIG_SERIAL_SHARE_IRQ</CODE> $B$r(B
$B@_Dj$7$F%+!<%M%k$r%3%s%Q%$%k$7$J$1$l$P$J$j$^$;$s!#$^$?!"%7%j%"%k%]!<%H(B
$B$N%O!<%I%&%'%"$b6&M-$KBP1~$7$F$$$J$1$l$P$J$j$^$;$s(B($B$7$?$,$C$F!"(B2 $B$D$N(B
$B%7%j%"%k%\!<%I$,(B 1 $B$D$N3d9~$_@~$K0[$J$kEE05$rN.$7$F$b!"!V$3$l$,3d9~$_(B
$B$G$9!W$H$$$&0UL#$NEE05$7$+<u$1<h$i$l$^$;$s(B)$B!#$h$C$F%P!<%8%g%s(B 2.2 $B$N%+!<(B
$B%M%k$G$"$C$F$b!"3d9~$_$N6&M-$O$7$J$$J}$,NI$$$+$b$7$l$^$;$s!#(B</P>


<H3>$B$I$N(B IRQ $B$rA*$V$+(B?</H3>

<P> $B%7%j%"%k%]!<%H$N%O!<%I%&%'%"$K$O!"8B$i$l$?(B IRQ $B$7$+@_Dj$G$-$J$$$3(B
$B$H$,$h$/$"$j$^$9!#$7$+$7(B IRQ $B$,>WFM$9$k$b7y$G$7$g$&!#$7$?$,$C$F!"A*Br(B
$B$NM>CO$O$"$^$j$"$j$^$;$s!#(BPC $B$G$OIaDL!"(B<CODE>ttyS0</CODE> $B$H(B <CODE>ttyS2</CODE> $B$,(B 
IRQ4 $B$K!"(B<CODE>ttyS1</CODE> $B$H(B <CODE>ttyS3</CODE> $B$,(B IRQ3 $B$K$"$j$^$9!#(B 
<CODE>/proc/interrupts</CODE> $B$r8+$l$P!"8=:_F0:nCf$N%W%m%0%i%`$,$I$N(B IRQ 
$B$r;H$C$F$$$k$N$+$,$o$+$j$^$9!#$3$N$h$&$J(B IRQ $B$O;H$o$J$$J}$,$$$$$G$7$g(B
$B$&!#@N$O(B IRQ 5 $B$O%5%&%s%I%+!<%I$,;H$C$F$$$^$7$?$,!"$h$/%7%j%"%k%]!<%H(B
$B$G$b;H$o$l$F$$$^$7$?!#(B</P>


<P>$B0J2<$K!"(BGreg (Serial-HOWTO $B$N85!9$NCx<T(B)$B$,$I$N$h$&$K(B 
<CODE>/etc/rc.d/rc.serial</CODE> $B$r@_Dj$7$F$$$k$+$r<($7$^$9!#(B
<CODE>rc.serial</CODE> $B$O5/F0;~$K<B9T$5$l$k%U%!%$%k(B($B%7%'%k%9%/%j%W%H(B)$B$G$9(B($B>l=j(B
$B$dL>A0$O0c$&$3$H$,$"$j$^$9(B)$B!#%P!<%8%g%s(B 2.15 $B0J9_$N(B ``setserial'' $B$G$O!"(B
$BI,$:$7$b$3$N$h$&$K@_Dj$,9T$o$l$k$o$1$G$O$"$j$^$;$s$,!"$3$l$O(B IRQ $B$NA*(B
$BBr$NNc$K$b$J$j$^$9!#(B</P>

<P>
<BLOCKQUOTE><CODE>
<PRE>
/sbin/setserial /dev/ttyS0 irq 3        # $B%7%j%"%k%^%&%9(B        
/sbin/setserial /dev/ttyS1 irq 4        # Wyse $B@=$N%@%`C<Kv(B     
/sbin/setserial /dev/ttyS2 irq 5        # Zoom $B@=$N%b%G%`(B       
/sbin/setserial /dev/ttyS3 irq 9        # US Robotics $B@=$N%b%G%`(B
</PRE>
</CODE></BLOCKQUOTE>
</P>


<P>$BI8=`$N(B IRQ $B3d$jEv$F$r<($7$^$9(B:
<PRE>
        IRQ  0    $B%?%$%^%A%c%M%k(B 0 ($B!V3d9~$_L5$7!W$r0UL#$9$k$3$H$b$"$j$^$9!#>\$7$/$O8e=R$7$^$9(B)
        IRQ  1    $B%-!<%\!<%I(B
        IRQ  2    $B%3%s%H%m!<%i(B 2 $B$X$N%+%9%1!<%I(B
        IRQ  3    $B%7%j%"%k%]!<%H(B 2
        IRQ  4    $B%7%j%"%k%]!<%H(B 1
        IRQ  5    $B%Q%i%l%k%]!<%H(B 2, $B%5%&%s%I%+!<%I(B
        IRQ  6    $B%U%m%C%T!<%G%#%9%/(B
        IRQ  7    $B%Q%i%l%k%]!<%H(B 1
        IRQ  8    $B%j%"%k%?%$%`%/%m%C%/(B
        IRQ  9    IRQ2 $B$K%j%@%$%l%/%H(B
        IRQ 10    $B3d$jEv$FL5$7(B
        IRQ 11    $B3d$jEv$FL5$7(B
        IRQ 12    $B3d$jEv$FL5$7(B
        IRQ 13    $B?tCM%3%W%m%;%C%5(B
        IRQ 14    $B%O!<%I%G%#%9%/%3%s%H%m!<%i(B 1
        IRQ 15    $B%O!<%I%G%#%9%/%3%s%H%m!<%i(B 2
</PRE>
</P>

<P>$B3d9~$_$rA*$V$?$a$N7hDjE*$JJ}K!$O$"$j$^$;$s!#3d9~$_$r%^%6!<%\!<%I$d!"(B
$BB>$N%\!<%I$,;H$C$F$$$J$$$3$H$r3N$+$a$k$7$+$"$j$^$;$s!#(B2, 3, 4, 5, 7,
10, 11, 12, 15 $B$rA*$V$3$H$,$G$-$^$9!#(BIRQ 2 $B$H(B 9 $B$OF1$8$G$"$k$3$H$KCm0U(B
$B$7$F$/$@$5$$!#(BIRQ 2 $B$H(B 9 $B$N$I$A$i$r;H$C$F$b!"%7%j%"%k%I%i%$%P$O$3$l$r(B
$B$&$^$/G'<1$7$^$9!#Hs>o$K8E$$%7%j%"%k%\!<%I$r$*;H$$$N>l9g$K$O!"(B8 $B0J>e$N(B 
IRQ $B$O;H$($J$$$+$b$7$l$^$;$s!#(B</P>

<P>IRQ 1, 6, 8, 13, 14 $B$O;H$o$J$$$G$/$@$5$$(B! $B$3$l$i$N(B IRQ $B$O%^%6!<%\!<%I(B
$B$,;H$&$+$i$G$9!#%^%6!<%\!<%I$,;H$C$F$$$k(B IRQ $B$r<h$j>e$2$k$H!"$H$F$bHa(B
$B$7$$$3$H$K$J$j$^$9!#@_Dj$,=*$o$C$?$i!"3d9~$_$r;H$&%W%m%0%i%`$r<B9T$9(B
$B$k$H$-$K(B <CODE>/proc/interrupts</CODE> $B$r:F3NG'$7!"(BIRQ $B$N>WFM$,5/$3$C$F$$$J(B
$B$$$3$H$r3N$+$a$F$/$@$5$$!#(B</P>


<H2><A NAME="ss6.7">6.7</A> <A HREF="Modem-HOWTO.html#toc6.7">$B%"%I%l%9$NA*Br(B --ttyS3 $B$H>WFM$9$k%S%G%*%\!<%I(B</A>
</H2>

<P> IBM 8514 $B%S%G%*%\!<%I(B($B$H$=$NN`;wIJ(B)$B$N(B I/O $B%"%I%l%9$O!"J9$/$H$3$m$G(B
$B$O(B <CODE>0x?2e8</CODE> $B$G$9(B(? $B$O(B 2, 4, 8, 9 $B$N$$$:$l$+(B)$B!#(B16 $B?JCM$N@hF,$N(B 0 $B$G(B
$B$"$k7e$r%7%j%"%k%]!<%H$,L5;k$9$k>l9g$K$O(B($BB?$/$N>l9g$O$=$&$G$9(B)$B!"$3$l$O(B 
<CODE>0x02e8</CODE> $B$K$"$k(B <CODE>ttyS3</CODE> $B$H>WFM$9$k$+$b$7$l$^$;$s(B($B$7$+$7!"%7%j%"(B
$B%k%]!<%H$,$&$^$/@_7W$5$l$F$$$l$P>WFM$7$J$$$O$:$G$9(B)$B!#$3$N%"%I%l%9$G(B 
<CODE>ttyS3</CODE> $B$r;H$*$&$H$7$F$$$k>l9g$K$O!"$3$l$O0-$$CN$i$;$G$9!#(B</P>


<P>$B$[$H$s$I$N>l9g$O!"2DG=$G$"$l$P%G%U%)%k%H$N%"%I%l%9$r;H$&$Y$-$G$9!#$3$3(B
$B$G8@$&%"%I%l%9$O!"(B8 $B%P%$%H$NHO0O$N:G=i$N%"%I%l%9$rI=$7$F$$$^$9!#Nc$($P!"(B 
<CODE>3f8</CODE> $B$O<B:]$K$O(B <CODE>3f8-3ff</CODE> $B$NHO0O$G$9!#$=$l$>$l$N%7%j%"%k%G%P%$(B
$B%9$O(B(I/O $B%"%I%l%9$rI,MW$H$9$kB>$N%?%$%W$N%G%P%$%9$HF1$8$/(B)$B8GM-$N%"%I%l(B
$B%9HO0O$rI,MW$H$7$^$9!#$3$l$O=E$J$C$F$O(B($B>WFM$7$F$O(B)$B$$$1$^$;$s!#%7%j%"%k(B
$B%]!<%H$N%G%U%)%k%H$N%"%I%l%9$r0J2<$K<($7$^$9(B:</P>

<P>
<BLOCKQUOTE><CODE>
<PRE>
ttyS0 $B$N%"%I%l%9(B 0x3f8
ttyS1 $B$N%"%I%l%9(B 0x2f8
ttyS2 $B$N%"%I%l%9(B 0x3e8
ttyS3 $B$N%"%I%l%9(B 0x2e8
</PRE>
</CODE></BLOCKQUOTE>
</P>


<H2><A NAME="io-irq_methods"></A> <A NAME="ss6.8">6.8</A> <A HREF="Modem-HOWTO.html#toc6.8">I/O $B$H(B IRQ $B$N%O!<%I%&%'%"$X$N@_Dj(B ($B$[$\(B PnP $B8~$1(B)  </A>
</H2>

<P> $B$3$l$r%O!<%I%&%'%"$K@_Dj$7$?8e$K$O!"(B<CODE>setserial</CODE> $B$r;H$C$F%I%i%$(B
$B%P$b@_Dj$9$k$3$H$rK:$l$J$$$G$/$@$5$$!#Hs(B PnP $B$N%7%j%"%k%]!<%H$N>l9g$K(B
$B$O!"%]!<%H$N%O!<%I%&%'%"$N@_Dj$O%8%c%s%Q$+!"(B($B!V%8%c%s%Q%l%9!W$N>l9g$K(B
$B$O(B) $B@_Dj$r9T$&$?$a$N(B DOS $B%W%m%0%i%`$N<B9T$K$h$C$F9T$$$^$9(B($B$3$N%W%m%0%i(B
$B%`$G(B PnP $B$,L58z$K$J$k$+$b$7$l$^$;$s(B)$B!#(BPnP $B%7%j%"%k%]!<%H$r@_Dj$9$k:]$K(B
$B9M$($i$l$kJ}K!$N%j%9%H$r0J2<$K<($7$^$9(B:</P>

<P>
<UL>
<LI> PnP BIOS $B$N(B CMOS $B@_Dj%a%K%e!<$r;H$&(B($BIaDL$O(B <CODE>ttyS0</CODE> (Com1) $B$H(B 
<CODE>ttyS1</CODE> (Com2) $B$K$"$k30IU$1%G%P%$%9$@$1$K;H$$$^$9(B)</LI>
<LI> PnP BIOS $B$K(B PnP $B%7%j%"%k%]!<%H$r<+F0E*$K@_Dj$5$;$k!#(B
<A HREF="#bios_conf">PnP BIOS $B$r;H$C$?(B I/O $B%"%I%l%9$H(B IRQ $B$N@_Dj(B</A> $B$r(B
$B;2>H$7$F$/$@$5$$(B</LI>
<LI> PnP $B%7%j%"%k%]!<%H$H(B PnP $BBP1~$N(B Linux $B$r;H$C$F$$$k$J$i$P2?$b$7(B
$B$J$/$F$+$^$$$^$;$s(B(Plug-and-Play-HOWTO $B$r;2>H(B)</LI>
<LI> PCI $B$G$J$$(B PnP $B%7%j%"%k%]!<%H$N>l9g$K$O(B <CODE>isapnp</CODE> $B$rMQ$$$k(B</LI>
<LI> PCI $B%P%9$N>l9g$K$O(B pciutils (pcitools) $B$rMQ$$$k(B</LI>
</UL>
</P>

<P>I/O $B%"%I%l%9$H(B IRQ $B$OEE8;$rF~$l$kEY$K(B(PnP $B$r;H$C$F(B)$B%7%j%"%k%]!<%H$N%l(B
$B%8%9%?$K@_Dj$7$J$1$l$P$J$j$^$;$s!#$H$$$&$N$b!"(BPnP $B%O!<%I%&%'%"$OEE8;$,(B
$B@Z$i$l$?$H$-$N@_DjFbMF$r3P$($F$$$J$$$+$i$G$9!#$3$l$r9T$&4JC1$JJ}K!$O!"(B 
PnP OS $B$r;H$C$F$*$i$:!"5/F0$9$kEY$K(B BIOS $B$,<+F0E*$K@_Dj$r9T$&$3$H$r(B 
PnP BIOS $B$K65$($F$d$k$3$H$G$9!#(B(PnP OS $B$G$"$k(B)Windows $B$,(B PnP OS $B$G$J$$(B
$B$H(B BIOS $B$K@_Dj$7$F(B Windows $B$r5/F0$9$k$H!"LdBj$,5/$3$k$3$H$,$"$j$^$9!#(B
$B>\$7$/$O(B Plug-and-Play-HOWTO $B$r$4Mw$/$@$5$$!#(B</P>
<P>[$BLuCm(B : JF $B%W%m%8%'%/%H$K$h$kF|K\8lLu(B
<A HREF="http://www.linux.or.jp/JF/JFdocs/Plug-and-Play-HOWTO.html">Plug-and-Play-HOWTO</A> ]</P>


<P>$B%W%i%0(B&amp;$B%W%l%$$O(B IO $B$H(B IRQ $B$N@_Dj$r<+F02=$9$k$?$a$K@_7W$5$l$^$7$?!#(B
$B$7$+$78=;~E@$N(B Linux $B$G$O!"OC$r$d$d$3$7$/$7$F$$$k$@$1$G$9!#I8=`$N(B 
Linux $B%+!<%M%k$O%W%i%0(B&amp;$B%W%l%$$r$"$^$j$&$^$/%5%]!<%H$7$F$$$^$;$s!#(B 
Linux $B%+!<%M%k$r%W%i%0(B&amp;$B%W%l%$(B OS $B$K$9$k%Q%C%A$r;H$C$F$$$k$J$i$P!"(B
$B>e5-$N$3$H$OA4$F(B OS $B$,<+F0E*$K=hM}$G$-$k$O$:$G$9!#$7$+$7!"$3$l$r;H$C$F(B
$B%7%j%"%k%]!<%H0J30$N%G%P%$%9$N@_Dj$r<+F02=$7$h$&$H$7$F$b!"<jF0$G%I%i%$(B
$B%P$N@_Dj$r$7$J$1$l$P$J$j$^$;$s!#$H$$$&$N$b!"(BLinux $B$N%I%i%$%P$O(B PnP $BBP(B
$B1~$N(B Linux $B8~$1$K=q$+$l$F$$$J$$$+$i$G$9!#(B<CODE>isapnptools</CODE> $B$d(B BIOS $B$r;H$C(B
$B$F%W%i%0(B&amp;$B%W%l%$$N@_Dj$r9T$C$F$$$k$J$i$P!"$3$l$O(B 2 $B$D$NCM$r%b%G%`%\!<(B
$B%I$N%7%j%"%k%]!<%HItJ,$N%l%8%9%?$K@_Dj$9$k$@$1$G$"$j!"(Bsetserial $B$N@_Dj(B
$B$O%f!<%6$,9T$&I,MW$,$"$j$^$9!#(B1999 $BG/=i$a$N;~E@$G$O!"$3$l$i$N@_Dj$O4J(B
$BC1$G$b$"$j$^$;$s$7!">\$7$$J8=q$K$b$5$l$F$b$$$^$;$s!#(B 
Plug-and-Play-HOWTO $B$H(B isapnptools FAQ $B$r$4Mw$/$@$5$$!#(B</P>
<P>[$BLuCm(B : JF $B%W%m%8%'%/%H$K$h$kF|K\8lLu(B 
<A HREF="http://www.linux.or.jp/JF/JFdocs/Plug-and-Play-HOWTO.html">Plug-and-Play-HOWTO</A> ]</P>


<H3><A NAME="bios_conf"></A> PnP BIOS $B$r;H$C$?(B I/O $B%"%I%l%9$H(B IRQ $B$N@_Dj(B </H3>

<P> PnP OS $B$d(B isapnp $B$r;H$C$F(B IO $B$H(B IRQ $B$N@_Dj$r9T$&J}K!$N@bL@$,$=$l$i(B
$B$N%=%U%H%&%'%"$KIU$$$F$/$k$K$b$+$+$o$i$:!"(BPnP BIOS $B$K$=$&$$$C$?@_Dj$r(B
$B$5$;$h$&$H;W$C$F$$$?$i$=$l$O4V0c$$$G$9!#A4$F$N(B PnP BIOS $B$,$3$l$r9T$($k(B
$B$o$1$G$O$"$j$^$;$s!#(BBIOS $B$K$OIaDL!":G=i$N(B 2 $B$D$N%7%j%"%k%]!<%H$r@_Dj$9(B
$B$k$?$a$N(B CMOS $B%a%K%e!<$,$"$j$^$9!#$3$N%a%K%e!<$O8+$D$1$K$/$$$+$b$7$l$^(B
$B$;$s$,!"(BAward $B@=$N(B BIOS $B$J$i$P(B ``<CODE>chipset features setup</CODE>'' $B$N2<$K(B
$B$"$j$^$9!#B?$/$N>l9g!"$3$3$G$O$[$H$s$I2?$bA*$Y$^$;$s!#B>$N$b$N$,%a%K%e!<(B
$B$K$J$1$l$P!":G=i$N(B 2 $B$D$N%7%j%"%k%]!<%H$K$OI8=`$N(B I/O $B%"%I%l%9$H(B IRQ 
$B$,@_Dj$5$l$^$9!#(B
<A HREF="Modem-HOWTO-8.html#dev_nos">$B%7%j%"%k%]!<%H%G%P%$%9$NL>A0$H(B $BHV9f(B</A> $B$r$4Mw$/$@$5$$!#(B</P>

<P>$B9%$`$H9%$^$6$k$H$K4X$o$i$:!"(BPC $B$r5/F0$9$k$H(B PnP BIOS $B$,(B PnP $B$K$h$k%O!<(B
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<P>PnP OS $B$r;}$C$F$$$J$$$3$H$r(B BIOS $B$K@_Dj$7$F$"$l$P!"(BPnP BIOS $B$O:G=i$N(B 2 
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<P>[$BLuCm(B : JF $B%W%m%8%'%/%H$K$h$kF|K\8lLu(B
<A HREF="http://www.linux.or.jp/JF/JFdocs/Plug-and-Play-HOWTO.html">Plug-and-Play-HOWTO</A> ]</P>

<P>$B?7$7$$(B PnP $B%G%P%$%9$,DI2C$5$l$k$H!"(BBIOS $B$O(B PnP $B@_Dj$rJQ99$7$FD4@0$r9T(B
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<H2><A NAME="ss6.9">6.9</A> <A HREF="Modem-HOWTO.html#toc6.9">IRQ $B$H(B I/O $B%"%I%l%9$r(B setserial $B$KM?$($k(B</A>
</H2>

<P> $B%O!<%I%&%'%"$N(B IRQ $B$H(B I/O $B%"%I%l%9$r$$$C$?$s@_Dj$9$k$H(B($B$"$k$$$O(B 
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<H2><A NAME="ss6.10">6.10</A> <A HREF="Modem-HOWTO.html#toc6.10">$B$=$NB>$N@_Dj(B</A>
</H2>

<H3>$B%O!<%I%&%'%"%U%m!<@)8f(B (RTS/CTS) $B$N@_Dj(B</H3>

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<P>
<BLOCKQUOTE><CODE>
<PRE>
 
stty crtscts &lt; /dev/ttyS2 
</PRE>
</CODE></BLOCKQUOTE>
 </P>

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$B$Y$F$/$@$5$$!#(B</P>

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