Messages in this thread | | | Date | Mon, 05 Jul 2010 18:28:56 -0600 | From | Robert Hancock <> | Subject | Re: [PATCH 1/1] ACPI: pci_irq, add PRT_ quirk for IBM Bartolo |
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On 06/30/2010 03:20 AM, Jiri Slaby wrote: > On 06/30/2010 01:23 AM, Robert Hancock wrote: >> What kind of slot is it, and what kind of device was being used, >> something designed for this machine or just some random card? > > It's a netmos 9835 serial card with 2 ports. PCI, there is no PCIe in > the machine as far as I can see. > >> Can they >> tell what IRQ the device is reportedly using in Windows and if it >> matches what Linux reports? > > I can ask them. What I know is that with acpi=noirq (or with the quirk) > the IRQ number is 10, with acpi without the quirk, it's 11: > > PCI: setting IRQ 2 as level-triggered > serial 0000:00:09.0: found PCI INT A -> IRQ 2 > 0000:00:09.0: ttyS4 at I/O 0x1898 (irq = 10) is a 16550A > 0000:00:09.0: ttyS5 at I/O 0x1890 (irq = 10) is a 16550A > > ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 11 > PCI: setting IRQ 11 as level-triggered > serial 0000:00:09.0: PCI INT A -> Link[LNKB] -> GSI 11 (level, low) -> > IRQ 11 > 0000:00:09.0: ttyS4 at I/O 0x1898 (irq = 11) is a 16550A > 0000:00:09.0: ttyS5 at I/O 0x1890 (irq = 11) is a 16550A > > I still no point in comparing this to Windows' setup. We can't find out > whether it is quirked or better (without some bug) handled there.
Well, you can see if Windows shows IRQ 10 or 11 for that device..
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