Messages in this thread | | | Date | Thu, 5 Feb 1998 23:45:21 -0500 (EST) | From | George <> | Subject | Re: problems with parallel port IRQ detection |
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On Thu, 5 Feb 1998, Alan Cox wrote:
Someone else wrote: >> that fix a bug in parport_procfs before. Be sure also to not run "echo >> 0>/proc/parport/?/irq" because the parport procfs will free the 0 irq in >> order to gain it and your machine will hang (of course if int 0 is the >> timer interrupt as with i386). > >Right now parport as of 2.1.8x doesnt even detect my parallel port. The old >lp driver did, the direct qcam drives it fine but parport loads and sees >zilch
As of 2.1.78 (and 2.1.82), I receive the correct io port but the wrong irq. # cat /proc/parport/0/hardware base: 0x378 irq: none dma: none modes: SPP
It was easily fixed by: options parport_pc io=0x378 irq=7
# cat /proc/parport/0/hardware base: 0x378 irq: 7 dma: none modes: SPP
I have an old crummy SPP parallel port and an ECP port (both on 486's) that I can test with if someone has patches. They are currently connected by PLIP.
-George Greer
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