From owner-FreeBSD-users-jp@jp.freebsd.org  Sun Apr 27 16:58:38 1997
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Date: Sun, 27 Apr 1997 16:58:09 +0900 (JST)
From: oku@he.mirai.or.jp (Nobuo Okumura)
To: FreeBSD-users-jp@jp.freebsd.org
In-reply-to: <199704270704.QAA01601@ho.mogami.com> (message from Kouichi Hirabayashi on Sun, 27 Apr 1997 16:04:21 +0900 (JST))
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Subject: [FreeBSD-users-jp 12200] Re: how to read COM port for UPS
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> >  $B>e5-$N$h$&$J;v$J$N$G$9$,!"(BCOM port$B$G$O!"D>@\(BDCD,DSR$B$N(BHi,Lo$B$rFI$`;v$O(B
> >$BFq$7$$$N$G$7$g$&$+!#(B
> 
> 	$B4JC1$K$G$-$^$9!#(B8250 $B7O$N(B Seial Chip $B$O(B I/O_base_address + 6
> $B$K(B Modem Status Register $B$H$$$&$N$,$"$C$F!"$=$3$K(B DCD, DSR $BEy$N%l%Y%k(B
> $B$rFI$`$?$a$N%S%C%H$,MQ0U$5$l$F$$$^$9!#(B

  $B$=$l$OL^O@$J$N$G$9$,!"(Buser program$B$+$i4JC1$KFI$a$J$$$N$+$J$H;W$C$F!#(B
$B$G$b(B man io $B$7$F$_$k$H(B /dev/io $B$r(Bopen$B$9$l$PFI$a$=$&$G$9$M!#(B

  $B$G!"(BCOM$B$K7R$4$&$H#4IC0J2<$NDdEE$rL5;k$9$k30It2sO)$r:n$C$F$$$?$iLLE](B
$B$K$J$C$FMh$F!"?'!99M$($F$$$k$&$A$K$U$H;W$$IU$$$F!"(Bgame port$B$rMxMQ$7$?(B
$B$i$I$&$+$H$A$g$C$H;n83$7$F8+$^$7$?!#(B
  $B4JC1$J%W%m%0%i%`$GFI$s$G8+$k$H!"$A$c$s$H(B4bit$B$N(Bswitch$B$H$7$FFI$a$?$N$G(B
($BEvA3$G$9$,(B)$B!"$3$A$i$r;H$&$h$&$KJ}?KJQ99!#(B

  irq$B$r;H$o$J$$$N$G!"(Bsleep$B$7$J$,$i(Bloop$B$9$k(Bscript$B$K$J$C$F$7$^$$$^$7$?$,!"(B
$B=gD4$KF0$$$F$$$^$9!#$I$&$b?'!9$J>pJs!"=u8@M-Fq$&$4$6$$$^$7$?!#(B

-- 
                                    oku@he.mirai.or.jp  ($B1|B<D*O/(B)
                               mhc00105@niftyserve.or.jp
