[Linux-parport] [PATCH 2.6.7] Parallel port detection via ACPI

[Dino Klein]

My patch is for facilitating detection via ACPI of onboard parallel devices, 
so it would not have helped you with the PCI card.
I took a quick look at the patch that the company provides for the 2.4 
kernels, followed by a quick look at some source files in 2.6.7, and I think 
that 2.6.7 should be able to handle your card. Perhaps the 2.6.5 kernel that 
comes with suse doesn't have support for it.
If you have the source, grep for PCI_VENDOR_ID_TITAN and 
PCI_VENDOR_ID_TITAN_210L.
I'm not familiar with this code, so don't hold me responsible :)
Hope it helps.


>From: Erwin Volz <erwvolz at bluewin.ch>
>To: Dino Klein <dinoklein at hotmail.com>
>CC: linux-parport at lists.infradead.org
>Subject: Re: [Linux-parport] [PATCH 2.6.7] Parallel port detection via ACPI
>Date: Sun, 20 Jun 2004 21:26:54 +0200
>
>Hello
>
>I tried my hand at building the module, but so far with no success. I
>had a few warnings when building the module, but I don't think thats the
>problem:
>   CC [M]  /usr/src/linux-2.6.5-7.75/drivers/parport/parport_pc.o
>/usr/src/linux-2.6.5-7.75/drivers/parport/parport_pc.c: In function
>`acpi_parport_pc_resource':
>/usr/src/linux-2.6.5-7.75/drivers/parport/parport_pc.c:2939: warning:
>unused variable `status'
>/usr/src/linux-2.6.5-7.75/drivers/parport/parport_pc.c: At top level:
>include2/asm/parport.h:14: warning: `parport_pc_find_nonpci_ports'
>defined but not used
>/usr/src/linux-2.6.5-7.75/drivers/parport/parport_pc.c:2834: warning:
>`parport_pc_init_superio' defined but not used
>
>Still, the card (VScom 210L) is not reacting (same situation as before).
>Any ideas how I could proceed?
>
>Erwin
>
>
>Am Fr, den 18.06.2004 schrieb Dino Klein um 21:46:
> > Hi,
> > I've modified the parport_pc.c file to detect parallel ports via ACPI; 
>it is
> > partially a cut & paste from the serial port (8250) acpi code. It's 
>kinda
> > crude, but it works. It utilizes the ACPI subsystem to get the resources
> > assigned to the port, and then passes them on to the detection routine. 
>I've
> > verified that it is working on my machine by cycling between the modes 
>in
> > the BIOS (spp, epp, ecp+epp), and observing proper detection in the 
>logs.
> > I commented out the pnp & non-pci detection calls, since ACPI replaces 
>them.
> > I also disabled the SuperIO detection, since it was grabbing the 
>parallel
> > port before the ACPI detection kicked in on my motherboard with a via686
> > southbridge.
> > Again, this is is kinda of crude, but I would really like to see some
> > parallel port detection via ACPI, so I won't have to manually specify 
>irq &
> > dma. Perhaps there should be an option to choose between PnP and ACPI, 
>since
> > there shouldn't be a reason to use both.
> >
> > --- linux-2.6.7-orig/drivers/parport/parport_pc.c	2004-06-18
> > 14:20:00.000000000 -0400
> > +++ linux-2.6.7/drivers/parport/parport_pc.c	2004-06-18 
>13:05:01.000000000
> > -0400
>...
> > 	spin_lock(&ports_lock);
> > 	while (!list_empty(&ports_list)) {
> >
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