<HTML ><HEAD ><TITLE >Hints</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.54"><LINK REL="HOME" TITLE="Linux I/O $B%]!<%H%W%m%0%i%_%s%0(B mini-HOWTO" HREF="index.html"><LINK REL="PREVIOUS" TITLE="$B$h$/;H$o$l$k%]!<%H(B" HREF="useful-ports.html"><LINK REL="NEXT" TITLE="$B%H%i%V%k%7%e!<%H(B" HREF="troubleshooting.html"></HEAD ><BODY CLASS="SECT1" BGCOLOR="#FFFFFF" TEXT="#000000" ><DIV CLASS="NAVHEADER" ><TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >Linux I/O $B%]!<%H%W%m%0%i%_%s%0(B mini-HOWTO</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="useful-ports.html" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="troubleshooting.html" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="HINTS" >7. Hints</A ></H1 ><P >$B$^$H$b$J%"%J%m%0(B I/O $B$,I,MW$J>l9g$K$O!"(BADC ($B%"%J%m%0(B -> $B%G%8%?%k(B $B%3%s%P!<%?(B)$B$d(B DAC ($B%G%8%?%k(B -> $B%"%J%m%0%3%s%P!<%?(B)$B%A%C%W$r%Q%i%l(B $B%k%]!<%H$K@\B3$9$k$H$$$&J}K!$b$"$j$^$9!#(B ($B%R%s%H(B: $BEE8;$K$O5$$r$D$1$F2<$5$$!#%2!<%`%]!<%H$+$i$NEE8;$r;H$&$+!"(B $B%G%#%9%/%I%i%$%VMQ$NM>$C$F$$$kEE8;%3%M%/%?$r%3%s%T%e!<%?%1!<%9$+$i(B $B0z$CD%$j=P$9$J$I$,$$$$$G$7$g$&!#%Q%i%l%k%]!<%H$+$iEE8;$r$H$k$J$i$P!"(B $BDc>CHqEENO$N%G%P%$%9$r;H$&I,MW$,$"$j$^$9!#(B) ($BLuCm(B: $B$$$:$l$K$;$h!"$3$l$i$O%G%8%?%k7O$NEE8;$G$9$+$i!"%"%J%m%07O$K(B $B;H$&>l9g$K$O$J$s$i$+$NJ}K!$G%G%+%C%W%j%s%0$r$*K:$l$J$/!#(B) $B$^$?$O!"(BAD/DA $B%+!<%I$r9XF~$9$k$H$$$&<j$b$"$j$^$9!#(B ($B@N$N%H%m$$$b$N$J$iBgDq(B I/O $B%]!<%H$G@)8f$G$-$^$9!#(B) $B$b$7!"(B1$B!A(B2 $B%A%c%M%k$G==J,$G$"$j!"$"$^$j@53N$G$J$/$F$b$h$/!"(B($B$*$=$i$/(B) $BIT@53N$JCfE@Jd@5(B(zeroing)$B$G$b$h$1$l$P!"(BLinux $B$N%5%&%s%I%I%i%$%P$G%5(B $B%]!<%H$5$l$F$$$k0B$$%5%&%s%I%+!<%I$rGc$C$F$-$F;H$&!"$H$$$&J}K!$b$"$j$^$9!#(B ($B$=$l$K!"7k9=9bB.$G$9$h$M!#(B)</P ><P >$B@:L)$J%"%J%m%05!4o$G$OITE,Ev$J%0%i%s%I@_Dj$K$h$j%"%J%m%0F~=PNO$N8m:9$,(B $B@8$:$k$3$H$K$J$j$^$9!#(B $B2?$+JQ$@$J$!!"$H;W$C$?$i!"$=$N5!4o$r%U%)%H%+%C%W%i$rMQ$$$F%3%s%T%e!<%?$+$i(B $BEE5$E*$K(B($B%3%s%T%e!<%?$H5!4o$N4V$N(B<EM >$B$9$Y$F$N(B</EM >$B?.9f@~$r(B) $B%"%$%=%l!<%H$7$F$_$k$H$$$$$G$7$g$&!#(B $B$h$jNI$$%"%$%=%l!<%7%g%s$rF@$k$?$a$K%U%)%H%+%C%W%i$NEE8;$r%3%s%T%e!<%?$+$i(B $B$H$k$h$&$K$7$F$_$^$7$g$&!#(B ($B%]!<%H$NM=Hw$N?.9f@~$+$i==J,$J$/$i$$$NEE8;$,$H$l$^$9!#(B)</P ><P >Linux $B$G;H$($k%W%j%s%H4pHD@_7W$N%=%U%H%&%'%"$r$*C5$7$G$7$?$i!"(B Pcb $B$H$$$&L>A0$N%U%j!<$J(B X11 $B%"%W%j%1!<%7%g%s$,$"$j$^$9!#(B $B$9$4$/Fq$7$$$3$H$r$7$h$&$H$$$&$N$G$J$$8B$j!"$3$l$G==J,Lr$K$?$A$^$9!#(B $BB?$/$N(B Linux $B%G%#%9%H%j%S%e!<%7%g%s$K<}O?$5$l$F$$$^$9$,!"(B <A HREF="ftp://sunsite.unc.edu/pub/Linux/apps/circuits/" TARGET="_top" >ftp://sunsite.unc.edu/pub/Linux/apps/circuits/</A > ($B%U%!%$%kL>(B <TT CLASS="FILENAME" >pcb-*</TT > ) $B$+$i$b<j$K$$$l(B $B$k$3$H$,$G$-$^$9!#(B</P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="useful-ports.html" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="troubleshooting.html" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >$B$h$/;H$o$l$k%]!<%H(B</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" > </TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >$B%H%i%V%k%7%e!<%H(B</TD ></TR ></TABLE ></DIV ></BODY ></HTML >