OS/2, eCS & ArcaOS - Technical > Hardware
PCI Parallel Port card install -- need info
Pete:
Hi walking_x
Davids version of ACPI certainly works better than the versions released before he took over development. Of course this does not mean it will work on every system with every pci addin card but certainly worth a try.
Regards
Pete
walking_x:
He can fix only PIC mode now, because PRINT01.SYS does not accept interrupts > 15. Driver can be recompiled from SDK sources with removing this limit - but who will make it except Mensys? ;)
R.M. Klippstein:
Everybody is probably aware of this, but FWIW using PSD=OS2APIC.PSD lets all processors function under these conditions.
klipp
Doug Bissett:
--- Quote ---Davids version of ACPI certainly works better than the versions released before he took over development.
--- End quote ---
There is no doubt about that.
--- Quote --- because PRINT01.SYS does not accept interrupts > 15
--- End quote ---
I think you guys are forgetting, that the DEFAULT operation of PRINT01.SYS, is POLLING mode, which does not use an IRQ. Just leave off the /IRQ parameter. In the early days, that would use a noticeable amount of processor time, but today it is negligible.
There is also the PAR1284.SYS driver. I have no idea if it will help.
--- Quote ---Everybody is probably aware of this, but FWIW using PSD=OS2APIC.PSD lets all processors function under these conditions.
--- End quote ---
Processors work, but there is no power control. That is not too serious on a desktop system, but is not good on a laptop. I have tried that on all of my SMP systems, and it does enable all processors on all of them, but I would only use it, if ACPI did not work. There is no other reason to use it.
walking_x:
--- Quote from: Doug Bissett on February 20, 2014, 05:36:31 am ---I think you guys are forgetting, that the DEFAULT operation of PRINT01.SYS, is POLLING mode, which does not use an IRQ. Just leave off the /IRQ parameter. In the early days, that would use a noticeable amount of processor time, but today it is negligible.
--- End quote ---
The problem is not IRQ, but detection of PCI cards in driver. It checks IRQ presence and its number in any way (even without /IRQ key) and ignore card if no one or it greater than 15.
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