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<H2><A NAME="irq_prob_details"></A> <A NAME="s14">14.</A> <A HREF="Serial-HOWTO.html#toc14">$B3d$j9~$_$NLdBj$K4X$9$k>\$7$$@bL@(B </A></H2>

<P>
<A HREF="Serial-HOWTO-13.html#trouble_shoot">$B%H%i%V%k%7%e!<%F%#%s%0(B</A>$B$N>O$G$O>I>u(B
$BJL$KLdBjE@$r5s$2$F$$$^$9$,!"$3$N>O$G$O3d$j9~$_$N@_Dj$r8m$C$F$$$k>l9g$K(B
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<H2><A NAME="ss14.1">14.1</A> <A HREF="Serial-HOWTO.html#toc14.1">$B3d$j9~$_$NLdBj$N<oN`(B</A>
</H2>

<P> "setserial" $B%W%m%0%i%`$O!"%7%j%"%k%I%i%$%P$,9M$($F$$$k3d$j9~$_$N(B
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$B3d$j9~$_$,4{$K;H$o$l$F$$$k$H!"(B"... busy" $B$N%(%i!<%a%C%;!<%8$,=PNO$5$l(B
$B$k$3$H$K$J$j$^$9!#$7$?$,$C$F!"(B2 $B$D$N%G%P%$%9$,F1$8(B IRQ $B$r;H$C$F$$$F$b!"(B
1 $B$D$N%G%P%$%9$7$+;H$o$J$1$l$P!"2?$bLdBj$O$"$j$^$;$s!#$7$+$7!"(B($B:G=i$N(B
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$B%(%i!<%a%C%;!<%8$,=P$k$3$H$K$J$j$^$9!#(B</P>

<H2><A NAME="ss14.2">14.2</A> <A HREF="Serial-HOWTO.html#toc14.2">$B3d$j9~$_$N8m@_Dj$d>WFM$G5/$3$k>I>u(B</A>
</H2>

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<H2><A NAME="irq_ng"></A> <A NAME="ss14.3">14.3</A> <A HREF="Serial-HOWTO.html#toc14.3">$B3d$j9~$_$N@_Dj%_%9(B </A>
</H2>

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$BA0H>$N(B 16 $B%P%$%H$,Mh$?8e$K!"$3$N(B 16 $B%P%$%H$r$&$^$/<u$1<h$l$k$h$&!"(B
$B%]!<%j%s%0$,5/$3$k$3$H$b$"$j$^$9!#(B
$B$9$k$H(B
$B<!$N(B 16 $B%P%$%H$^$G$K$O6u$-;~4V$,$"$k$G$7$g$&$+$i!"(B32 $B%S%C%HA4BN$,$&$^(B
$B$/DL$j$^$9!#$3$N%7%J%j%*DL$j$K$J$k$3$H$O$"$^$j$"$j$^$;$s$,!"F1MM$N>r7o(B
$B$K$h$j(B 17 $B%P%$%H$+$i(B 31 $B%P%$%H$,DL$k$3$H$O$b$C$H9b$$2DG=@-$G5/$3$j$^$9!#(B
$B$7$+$7!"%G!<%?$rMn$H$7$J$,$i(B 16 $B%P%$%H$N%G!<%?$N$+$?$^$j$@$1$,CGB3E*$K(B
$BFO$/$H$$$&$3$H$O$5$i$K$h$/$"$j$^$9!#(B</P>
<P>1 $B%P%$%H$N%P%C%U%!$7$+;}$?$J$$8E$$%7%j%"%k%]!<%H$N>l9g(B($B$"$k$$$O@_Dj$r(B
$B8m$C$F(B 1 $B%P%$%H$N%P%C%U%!$N$h$&$JF0:n$K$J$C$F$$$k>l9g(B)$B$K$O!"A0$K=q$$$?(B
$B$h$j$b$:$C$H0-$$>u67$K$J$j$^$9!#(B
$B$D$^$j!"(B1 $B$D$NJ8;z$@$1$,;~!9%7%j%"%k%]!<%H$rDL$k(B
$B$H$$$C$?>uBV$K$J$j$^$9!#:G8e$K<u$1<h$C$?J8;z$r=|$/$H!"<u$1<h$C$?J8;z$O(B
$BA4$F%*!<%P!<%i%s$r5/$3$7$^$9(B($B$=$7$F<:$o$l$^$9(B)$B!#$3$N:G8e$NJ8;z$OC1$J$k(B
$B2~9TJ8;z$G$"$k$3$H$,$h$/$"$j$^$9!#$H$$$&$N$b!"2~9TJ8;z$O2hLL$K0l5$$KAw(B
$B$i$l$kJ8;z$NCf$G:G8e$NJ8;z$H$J$k$3$H$,B?$$$+$i$G$9!#$7$?$,$C$F!"(B
AT&lt;return&gt; $B$H%b%G%`$KF~NO$7$F$b!"2hLL$K$O(B AT $B$HI=<($5$l$J$$$3$H(B
$B$,$"$j$^$9!#$=$7$F?tIC8e$K5/$3$k$N$O!"%+!<%=%k$,0l9T2<$K0\F0$9$k(B($B2~9T(B
$BJ8;z(B)$B$3$H$@$1$G$9!#I.<T$K$O!"(B16 $B%P%$%H$N(B FIFO $B%P%C%U%!$,(B 1 $B%P%$%H$N%P%C(B
$B%U%!$N$h$&$KF0:n$7$?7P83$,$"$j$^$9!#(B</P>
<P>$BDL?.%W%m%0%i%`$O5/F0$N;~$K!"3d$j9~$_$,F0:n$7$F$$$k$3$H$r4|BT$7$^$9!#(B
$B%]!<%j%s%0E*$J%b!<%I$NCY$$F0:n$r;H$&$h$&$K$O$J$C$F$$$^$;$s!#(B
$B$7$?$,$C$F!"%7%j%"%k%]!<%H$d%b%G%`$N@_Dj%_%9$J$I!"$I$s$J8m$j$r0z$-5/$3(B
$B$7$F$b$*$+$7$/$"$j$^$;$s!#(B
$B@\B3$,3NN)$7$?=V4V$r8+F($7$F$7$^$&$3$H$b$"$j$($^$9!#(B
$B%m%0%$%s$9$k$?$a$K%9%/%j%W%H$r;H$C$F$$$k>l9g$K$O!"%]!<%j%s%0$NCY1d$N$?(B
$B$a$K%m%0%$%s$,(B($B%?%$%`%"%&%H$K$h$j(B)$B<:GT$9$k$+$b$7$l$^$;$s!#(B</P>

<H2><A NAME="irq_conflict"></A> <A NAME="ss14.4">14.4</A> <A HREF="Serial-HOWTO.html#toc14.4">$B3d$j9~$_$N>WFM(B </A>
</H2>

<P>2 $B$D$N%G%P%$%9$,F1$8(B IRQ $BHV9f$r;H$C$F$$$k$H!"3d$j9~$_$r6&M-$7$F$$$k(B
$B$H8@$o$l$^$9!#>r7o$K$h$C$F$O!"$3$N6&M-$O$&$^$/F0:n$7$^$9!#(B
$B%P!<%8%g%s(B 2.2 $B0J9_$N%+!<%M%k$O!">l9g$K$h$C$F$O!"%7%j%"%k%]!<%H$HJL$N(B
$B%7%j%"%k%]!<%H$G3d$j9~$_$r6&M-$G$-$^$9!#(B
PCI $B%P%9>e$N%G%P%$%9$O!"(BPCI $B%P%9>e$NB>$N%G%P%$%9$H(B IRQ $B$r6&M-$G$-$^$9!#(B
$B$3$l0J30$G>WFM$N2DG=@-$,$"$k>l(B
$B9g$G$b!"F1$8(B IRQ $B$N%G%P%$%9(B 2 $B$D$rF1;~$K!V;H$&!W$3$H$,$J$1$l$P!"LdBj$O(B
$B5/$-$J$$$O$:$G$9!#(B
$B@53N$K=q$/$H!"!V;H$&!W$H$O(B($B%W%m%0%i%^8@MU$G(B)$B!V%*!<%W%s$9$k!W$H(B
$B$$$&0UL#$G$9!#0J>e$NNc30$r=|$/$H!"(B($B3d$j9~$_6&M-$r2DG=$K$9$kFC<l$J%=%U(B
$B%H%&%'%"$H%O!<%I%&%'%"$r;H$o$J$$8B$j(B)$B6&M-$O5v$5$l$F$*$i$:!"6&M-$r9T$*(B
$B$&$H$9$k$H>WFM$,5/$3$j$^$9!#(B</P>
<P>IRQ $B$,>WFM$7$F$$$k(B 2 $B$D$N%W%m%;%9$,F1;~$K<B9T$5$l$?>l9g$G$"$C$F$b!"JR(B
$BJ}$N%G%P%$%9$N3d$j9~$_$,%G%P%$%9%I%i%$%P$KJaB*$5$l!"$=$A$i$@$1$O$&$^$/(B
$BF0:n$9$k$3$H$b$h$/$"$j$^$9!#B>J}$N%G%P%$%9$N3d$j9~$_$O@5$7$$%I%i%$%P$K(B
$BJaB*$5$l$J$$$N$G!"3d$j9~$_$N@_Dj%_%9$,$"$k;~$N%W%m%;%9$H$A$g$&$IF1$8$h(B
$B$&$KF0:n$9$k$G$7$g$&!#>\$7$/$O(B 
<A HREF="#irq_ng">$B3d$j9~$_$N@_Dj%_%9(B</A>
$B$N>O$r$4Mw$/$@$5$$!#(B</P>

<H2><A NAME="ss14.5">14.5</A> <A HREF="Serial-HOWTO.html#toc14.5">$B3d$j9~$_$NLdBj$N2r7h(B</A>
</H2>

<P>$B>e5-$N$h$&$K1~Ez$,Hs>o$KCY$$>l9g$N%F%9%HJ}K!$N0l$D$O!"(BIRQ $B$r(B 0 $B$KJQ(B
$B99$7$F(B($B3d$j9~$_$NBe$o$j$K9bB.$J%]!<%j%s%0$rMQ$$$k(B)$B!"$3$l$GLdBj$,2r7h$9(B
$B$k$+$I$&$+$rD4$Y$F$/$@$5$$!#(BIRQ=0 $B$K$h$k%]!<%j%s%0$O!"IT@5$J3d$j9~$_$K(B
$B$h$k!V%]!<%j%s%0!W$HHf$Y$F7e0c$$$K9bB.$G$9!#(BIRQ=0 $B$GLdBj$,2r7h$9$k$h$&(B
$B$G$"$l$P!"3d$j9~$_$K2?$+LdBj$,$"$k$H9M$($i$l$^$9!#(BIRQ=0 $B$O%j%=!<%9$r(B
$BBgNL$K>CHq$9$k$N$G!"0l;~E*$J=$@5$N$?$a$@$1$K;H$C$F$/$@$5$$!#3d$j9~$_$N(B
$BLdBj$N860x$r8+$D$1$k$Y$-$G$"$j!"$$$D$^$G$b(B IRQ=0 $B$r;H$C$F$$$F$O$$$1$^(B
$B$;$s!#(B</P>
<P>/proc/interrupts $B$rD4$Y$F!"B>$N%W%m%;%9$,8=:_$=$N(B IRQ $B$r;H$C$F$$$J$$$+(B
$B$I$&$+$r8+$F$/$@$5$$!#B>$N%7%j%"%k%]!<%H$,$=$N3d$j9~$_$r;H$C$F$$$k$J$i(B
$B$P!"(B"top" (f $B$rF~NO$7$F(B TTY $BI=<($rM-8z$K$7$F$/$@$5$$(B)$B$+(B "ps -e" $B$r;H$C$F(B
$B$I$N%7%j%"%k%]!<%H$,;H$o$l$F$$$k$+$rD4$Y$F$/$@$5$$!#(Bsetserial $B$K4V0c$C(B
$B$?(B IRQ $B$,@_Dj$5$l$F$$$k5?$$$,$"$k>l9g$K$O!"(B
<A HREF="Serial-HOWTO-6.html#what_is_io_irq">$B%7%j%"%k%]!<%H$N8=:_$N(B I/O $B%"%I%l%9$H(B IRQ $B$N@_Dj$O(B?</A>
$B$N@a$r8+$F$/$@$5$$!#(B</P>

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