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Newsgroups: comp.unix.bsd Path: sserve!manuel!munnari.oz.au!uunet!mcsun!Germany.EU.net!unidui!flyer!easix!channelz.GUN.de!dentaro.GUN.de!wolf From: wolf@dentaro.GUN.de (Wolfgang Stanglmeier) Subject: replacement for lpt.c without interrupts Organization: Colognists, Germany References: <1992Aug11.201127.1600@jbsys.com>,<PCG.92Aug6161828@aberdb.aber.ac.uk> Message-ID: <1992Sep6.143703.5848@dentaro.GUN.de> Date: Sun, 6 Sep 1992 14:37:03 GMT Lines: 192 I hacked the 386bsd LPT-driver to work without interrupts. The busy loop timeout value adapts automatically to the printer and system speed. It should be a full replacement for the standard driver. This driver keeps my printer busy without slowing down the system. [I remember the 90% system time when printing hppcl graphic files with the ix/386 lpt-driver WITH interrupts] The driver supports up to 4 printers. The minor number is interpreted as follows: D D P E - - # # DD: Debug, 00: no 01: statistical data when closing device 10: statistical data for every write call 11: lots of silly data P: Prime on open. E: Errormessage. Logs "no paper", "offline", "printer error" conditions to the console. ##: Device, 0: lpt0 1: lpt1 2: lpt2 (on display adapter) This driver uses the ideas of Piercarlo Grandis polling printer driver. begin 640 lpt.c.Z M'YV0+U0H`*$"Q)`W</+(27,T0*,:D`!$C1PX8(*ZD8<,F39@V((RX`*'D M34<Z>EB`H%*&39DF=>:4&5@P"$<0"QO2F8.SC$PY=LJ0<4&3)@@I0M/,H;-0 M3!TZ:=ZX`1'D0,<N`2#-USILZ<L9HK7I5#-<P<O*`,/-&3ILY*N^DH8,& M1%L0<NE^I6.TS1LR:<RD&1,&JE25:+7"*>-V+AVA(.#(>6,G#1G(=`N#H*N5 M+<<W<MV<`3%&*F##;N8830RB31DZ.HS&&(D4\-*F3Z.FMFL&A%>P8DG_U=HF MYD,YK\-PW8QFK!C*6DLGS.G0*(CK;MY`%:N2KE(0'9?R%FYUKFZ>9)EW-LD& M--?1ML>P4>Y:#E&"(&303GH[C5/4/"UGEAMHJ<666ZT9UY-D?]41'&=4/1>4 M<-,Q5!U^UX&0W79E=(?&=^$]]$9OI94'(%56J;<6>^Z)!D)\\Z51WU93<6;= M=62\,48=KKE!1V&ZH4C&"W=IUYP<K17&F$=L\,1@99==E5==$-K&E'^Y275? M03.,9!,;5)$1E!Q0S?%>DH\M%$:3K97AHVYGFE%&86#Y9!>268WG'4]>F4'' M'8G=F*!XML$QGUH0>M9>:*.%,<8:V=WA$AEGE-$C;#=2\2&?(_[)VG=A"-<& M'%*Y*6)O(LR`@PU"3$&$""^6$51[BY6EUHT:<>012"*19-)<*:W4TDM9;0D" M#2,Y4<9<1ZI(H&MZ-A?KK`@QIN%=$#ZK5:JKMOJJH&V$H9886F5U%1UO@.!F MCG+(=&=DD_GU&+P-CK%3K`L%=949\3+W79^>(B?HE'OYMM@8@0T&;U1(WK$0 M'8]-M5AC<YBI95'X48%$$E.`,,431E!Q11!2%`$"QR`$8=`334#QA!-%.$$% M"""#H"JKKH)`1!%6%,'$$U`4000(0F2141),,)%$$$V$-)(23RA-A18@&!6$ M$T.CG(3,,>\\M!%/2'%4$5,40?(02*2,-0A"5S%$$%0D\7(03(``1152N%QV MQR\SD<5(&J-LU,<ACURRQT@\40430SOQQ,Q"F#S$RU,DL7/)0U/Q!-$FJSQY M$TT4(<402]<-A11/$.$V%2,9I;')._?\<]!BXWT$V2LA`3<(590M1<=7)#YV M%%4D<;CG+(<^>NEVHZ[Z$#,;Y?C,302QA,F]FUQSX,"'O<261H%=N^_`"W\% MQVEKSCO6HD]!Q=69(V'RS=YZG(7[130=N\]`"VU4T4=+VM*:UBNH24T+*KF" MR4KVN="M[76\\YW'J%`%(ACM"E)(`A6H$+.JX:=D1A!=S(:`NRFX+6U!Z!@$ M02`"ETDA;DXXPOJ2@(65;`Z"-X.5[Y*`.Z.@(')'V)H3MB9#)5RM"B0S6D5R M$`,6$D$*(R'"$X30*I(H3@I.H)L(5-([E<&/<T%TPA!CZ,&"**$*,*.(19HH M`C32$`35.T(0M+"U+8+@=E*HGA.R,!$`GD^`3'.:%0^HMJ$9Q6]B--D12B:Z M06H0@2D#GL_JED*:O4YL0GC"$Y;`-R?,L(9?A*!17M8"I:61?CG+GMCTB,2Z M14Y\V"N;EXBFR27HC&-#Z%WER`C!K7$0BW3KV"B-8+-NY2QF<:,"$X3&0E1^ M#75-ZZ43*K<SFE6!"K#ZHRL[9X4@("T(0E@F")@`-Y,M43\8*PCW/`8RD9', M9"@[W1.L8#EF`A""^YM=(\$`ADIR[`0G**35]L@V+)R.;'P36Q):IC1F&DX* M5XL;V52RM2$PH8)$5(D0K@F"Z8USH1IDIN94\CJC+!0*#1W:0R/*0[X14WEH MBR@XD:9!HWW1"!J$V10Z)KZ4V8UD<<LE.<5VM[P]H6Q6.QP1<$G.A0IM)"?S MI./8UC.9(8YN=<,GS_A'.\Y]%)S+#%_8U&:TI3*0"A3%FO&*`+VTDFYG,J.; M2J80--+)M:#Y0VD253+6R4VS",1#9NF,0@2F!>%V'4-!12^ZU!AJE*,>55H3 M0IJY)ZA$GKDLF0-G5C,3MBJ9UU2D)HDPA5&*S7?T).$4=C#.H[HT@D5026'? 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