Re: IRQ problem with LNKG

[Dominik Brodowski <devel-JhLEnvuH02M@public.gmane.org>]

Hi Max,

It seems like the IRQ 9 specified in the DSDT (or selected among several
possible ones) for LNKG isn't really "allowed" for that USB device -- 
causing it to break either when setting it, or when trying to access it.

What is the /proc/interrupts for a non-ACPI (or otherwise "working" kernel)?
Specifically, what IRQ is assigned to your second USB controller? [Looks
like it is IRQ 10] You might want to override the acpi_pci_link_set call 
to set LNKG to this (working) IRQ (10?) instead of IRQ 9 (as it seems you're 
more familiar with kernel hacking than DSDT hacking). Alternatively, you can 
adjust the _PRS (possible resource settings) for the LNKG device in the DSDT. 

> is there a way to set a specific interrupt in the dsdt.asl for
> LNKG(which??)
best thing would be to just state one possible IRQ (the one found in the
non-ACPI kernel for the 2nd USB device) in the _PRS for LNKG.

>, or should i hack the kernel???
> and what is LNKG used for???
That depends on your system. You can check the _PRT (pci routing table) for
this.

>    do i need this part, what is \_OSI ?? find nothing in ACPI
> documentation
unfortunately, I don't know whether you need this part; but _OSI seems to be
a method which looks up what Operating System is running. And certain
features might be disabled if you use the "wrong" OS... [at least that seems
to be the case in the DSDT on my notebook].

	Dominik


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