Date: Sun, 08 Jun 1997 17:52:04 -0400 From: Richard Scranton <scrantr@ix.netcom.com> To: kent@erlang.ericsson.se Cc: freebsd-mobile@FreeBSD.ORG Subject: Re: I'm out of IRQ's... Message-ID: <339B2984.15AE@ix.netcom.com> References: <199706081645.SAA10760@townsend.ericsson.se>
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You could try using the printer in polled mode, freeing IRQ 7 for other things. Older versions of FreeBSDdid just this. Kent Boortz wrote: > > I have a portable, Compaq LTE 5380, and a docking station. The > docking station has a built in Ethernet card and I use an Ethernet > and modem PCMCIA card. > > Problem: I seem to be out of IRQ's! > > I use FreeBSD 2.2.1 and PAO and this is "dmesg | egrep irq" > edited a bit and adding some comments > > irq 1 sc0 at 0x60-0x6f on motherboard > irq 2 (the programmable interrupt controller) > irq 3 pcic: controller > irq 4 sio0 at 0x3f8-0x3ff on isa > irq 5 sb0 at 0x220 drq 1 on isa (built in SB Pro comp. ESS ES1688) > irq 6 fdc0 at 0x3f0-0x3f7 drq 2 on isa > irq 7 lpt0 at 0x378-0x37f on isa > irq 8 (CMOS/real time clock) > irq 9 (free??) > irq 10 ed0 at 0x300-0x31f on isa (ethernet in docking station) > irq 11 (free) > irq 12 psm0 at 0x60-0x64 on motherboard > irq 13 (built in math processor) > irq 14 wdc0 at 0x1f0-0x1f7 on isa > irq 15 wdc1 at 0x170-0x177 on isa (in docking station) > > I can't disable PnP, there is no option in the BIOS setup, but > this is also what Windows95 reports so I believe it is right. > I haven' tried that the sound card work from FreeBSD yet > (how do I do that?). > > Problem is, if I set 9 and 11 for PCMCIA card use in pccard.conf > it works "almost". It slows down Ethernet 500 times or make > the modem work unreliable. If I'm not docked IRQ 15 gets free > and giving PCMCIA 11 and 15 is ok. So I suspect IRQ 9 isn't > really free. > > Is there a way to make the PCMCIA cards share the same IRQ? How > do I debug conflicts like this? Is there some commands that give > information or test things? Recommended reading? I can't be the > only one having IRQ problems ;-) > > I have tried zillions of combinations of settings in /sys/i386/conf > rebuilding the kernel and in /etc/pccard.conf but haven't found > the logic in this thing. > > /kgb -- =================================================================== Richard Scranton - LDA Systems - Information Management Consulting scrantr@ix.netcom.com Columbus Cincinnati Cleveland Toledo Atlanta
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