On Mon, 04 Aug 2003, Robert Heller wrote:
> Just for an experiment, try configuring your BIOS to 'reserve' IRQ 12
> for a (non-existent) 'legacy ISA' device. That is, what happens when
> you effectively force the BIOS to assign IRQ 5 to the NetMos card? Do
OK, interestingly, same effect.
If I modprobe lp while the printer is running, kernel freeze, not even
Sysrq is working. If Printer is turned of, lp/parport_pc/parport loads,
but with the error messages from below.
I checked with Windows and there we have
COM3: 0xbc00 irq 12
COM4 0xb800 irq 12
par: 0xc000-0xc007 AND 0xc400-0xc407, no irq
> things start working again? It *sounds* like there is some sort of
> 'bug' in the parport driver that causes it to get confused when it sees
> an IRQ of 12 associated with a parallel port. Or something like that.
So maybe it is a bug introduced sometime ago? I haven't used the printer
some time ;-)
>
> NP>
> NP> On Mon, 21 Jul 2003, Norbert Preining wrote:
> NP> > I have the following problem:
> NP> >
> NP> > I have:
> NP> > 00:0c.0 Serial controller: NetMos Technology 222N-2 I/O Card (2S+1P) (rev 01) (prog-if 02 [16550])
> NP> > Subsystem: LSI Logic / Symbios Logic: Unknown device 0012
> NP> > Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
> NP> > Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> NP> > Interrupt: pin A routed to IRQ 12
> NP> > Region 0: I/O ports at b800 [size=8]
> NP> > Region 1: I/O ports at bc00 [size=8]
> NP> > Region 2: I/O ports at c000 [size=8]
> NP> > Region 3: I/O ports at c400 [size=8]
> NP> > Region 4: I/O ports at c800 [size=8]
> NP> > Region 5: I/O ports at cc00 [size=16]
> NP> >
> NP> > I have:
> NP> > options parport_pc irq=7,none dma=3,none io=0x0378,0xc400 io_hi=0x0778,0
> NP> > options lp parport=1
> NP> >
> NP> > It was all working.
> NP> >
> NP> > The serial port where here:
> NP> > /dev/ttyS2, UART: 16550A, Port: 0xbc00, IRQ: 5
> NP> > /dev/ttyS3, UART: 16550A, Port: 0xc000, IRQ: 5
> NP> >
> NP> >
> NP> > Then I took out a networking card and the IRQ of the NetMos card changed
> NP> > to 12 (see above, before it was 5).
> NP> >
> NP> > Now the serial ports are:
> NP> > /dev/ttyS2, UART: 16550A, Port: 0xbc00, IRQ: 12
> NP> > /dev/ttyS3, UART: 16550A, Port: 0xc000, IRQ: 12
> NP> > and working. But when I load the parport(_pc) modules with the above
> NP> > parameters I get this in the syslog:
> NP> >
> NP> > parport0: PC-style at 0x378 (0x778), irq 7, dma 3 [PCSPP,TRISTATE,COMPAT,ECP,DMA]
> NP> > parport 0xc400 (WARNING): CTR: wrote 0x0c, read 0x0d
> NP> > parport 0xc400 (WARNING): DATA: wrote 0xaa, read 0x00
> NP> > parport 0xc400: You gave this address, but there is probably no parallel port there!
> NP> > parport1: PC-style at 0xc400 [PCSPP,TRISTATE,EPP]
> NP> >
> NP> > Can you tell me where my parport is lost?
> NP> >
> NP> > Thanks a lot for any hint and tips!
> NP> >
> NP> > I am using debian/sid, linux-2.4.22-pre7.
> NP>
> NP> Best wishes
> NP>
> NP> Norbert
> NP>
> NP> -------------------------------------------------------------------------------
> NP> Norbert Preining <preining AT logic DOT at> Technische Universität Wien
> NP> gpg DSA: 0x09C5B094 fp: 14DF 2E6C 0307 BE6D AD76 A9C0 D2BF 4AA3 09C5 B094
> NP> -------------------------------------------------------------------------------
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> NP> delicacy.
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> NP>
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> NP>
> NP>
>
> \/
> Robert Heller ||InterNet: heller@cs.umass.edu
> http://vis-www.cs.umass.edu/~heller || heller@deepsoft.com
> http://www.deepsoft.com /\FidoNet: 1:321/153
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Herzliche Grüße
Best wishes
Norbert
-------------------------------------------------------------------------------
Norbert Preining <preining AT logic DOT at> Technische Universität Wien
gpg DSA: 0x09C5B094 fp: 14DF 2E6C 0307 BE6D AD76 A9C0 D2BF 4AA3 09C5 B094
-------------------------------------------------------------------------------
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