[Wylug-help] Multi-port serial Installation

[Jim Jackson]

Rik, I suspect you'll have to disable the onboard ttyS0/1 and use
the 4 port card as a direct replacement for ttyS0-3, using the standard
ioaddr for those devices and specifying suitable different IRQs for each
interface.

I've used 2 port cards to get /dev/ttyS2&3 serial lines, but not had any
experience of going beyond 4.

Jim

On Mon, 13 Oct 2003, Rik Wade wrote:

> I'm trying to get a Longshine LCS-8880 card working under Linux.
> Basically, the card is a standard 16450-based, dumb, 4-port card.
>
> I've created the devices in /dev using MAKEDEV, and a
> 'setserial -a /dev/ttySx' shows the appropriate information including
> the "FourPort" option.
>
> Connecting a device to ttyS0 and powering up (it's a Cisco router)
> with a 'cat /dev/ttyS0' outputs the device's boot text to the terminal.
>
> However, 'cat /dev/ttyS4' (the port associated with port 1 of the
> multi-port card), I get an "Input/Output" error. The same is true for
> other ports.
>
> Any ideas?
> --
> rik
>
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