2004-09-17 09:19:43

by John Covici

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Subject: problems with multitech 4 port serial card under 2.4.x and 2.6.x

I have had problems with the multitech 4 port serial card under both
the 2.4 and the 2.6 Linux kernels.

I guess the most important problem is that the driver module does not
detect the card at all -- the only driver whichworks is the one from
multitech itself. Here is the lspci -v entry for the card.

0000:00:0e.0 Serial controller: Exar Corp. XR17C158 Octal UART (rev
01) (prog-if 02 [16550])
Subsystem: Unknown device 2205:2001
Flags: fast devsel, IRQ 7
Memory at fba00000 (32-bit, non-prefetchable) [size=2K]

Now also, I have an Asus a8V and if I have the apic support for uni
processors on it won't even boot with the card installed.

Any assistance on these matters would be appreciated -- especially
Any assistance on these matters would be appreciated.

--
John Covici
[email protected]


2004-09-17 09:33:39

by Russell King

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Subject: Re: problems with multitech 4 port serial card under 2.4.x and 2.6.x

On Fri, Sep 17, 2004 at 05:19:30AM -0400, John Covici wrote:
> I have had problems with the multitech 4 port serial card under both
> the 2.4 and the 2.6 Linux kernels.

You don't say which 2.6 kernel. Support for these UARTs has only
recently been merged - you'll find it in 2.6.9-rc2 kernels.

Unfortunately I don't recall if it's in 2.6.9-rc1 or not.

--
Russell King
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
maintainer of: 2.6 PCMCIA - http://pcmcia.arm.linux.org.uk/
2.6 Serial core

2004-09-17 09:39:48

by John Covici

[permalink] [raw]
Subject: Re: problems with multitech 4 port serial card under 2.4.x and 2.6.x

Well, I was using 2.6.8 and there is under character devices a
configuration which says multitech and it says its experimental, but
it does not detect the card -- same with 2.4.26. Maybe I should try
the rc2 and see if my apic problems go away as well -- which would be
nice.

on Friday 09/17/2004 Russell King([email protected]) wrote
> On Fri, Sep 17, 2004 at 05:19:30AM -0400, John Covici wrote:
> > I have had problems with the multitech 4 port serial card under both
> > the 2.4 and the 2.6 Linux kernels.
>
> You don't say which 2.6 kernel. Support for these UARTs has only
> recently been merged - you'll find it in 2.6.9-rc2 kernels.
>
> Unfortunately I don't recall if it's in 2.6.9-rc1 or not.
>
> --
> Russell King
> Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
> maintainer of: 2.6 PCMCIA - http://pcmcia.arm.linux.org.uk/
> 2.6 Serial core
> -
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--
John Covici
[email protected]

2004-09-17 11:49:39

by John Covici

[permalink] [raw]
Subject: Re: problems with multitech 4 port serial card under 2.4.x and 2.6.x

I found it in the changelog -- thanks much. I wonder why the board
would freak out the apic stuff?

on Friday 09/17/2004 Russell King([email protected]) wrote
> On Fri, Sep 17, 2004 at 05:19:30AM -0400, John Covici wrote:
> > I have had problems with the multitech 4 port serial card under both
> > the 2.4 and the 2.6 Linux kernels.
>
> You don't say which 2.6 kernel. Support for these UARTs has only
> recently been merged - you'll find it in 2.6.9-rc2 kernels.
>
> Unfortunately I don't recall if it's in 2.6.9-rc1 or not.
>
> --
> Russell King
> Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
> maintainer of: 2.6 PCMCIA - http://pcmcia.arm.linux.org.uk/
> 2.6 Serial core

--
John Covici
[email protected]