From: pb@idca.tds.philips.nl (Peter Brouwer) Subject: Re: Fourport support for PL12 Date: 20 Sep 1993 06:57:53 GMT
In <27e4oq$p8q@senator-bedfellow.MIT.EDU> tytso@athena.mit.edu (Theodore Ts'o) writes:
> From: ackad@eis.cs.tu-bs.de (Claude Ackad)
> Date: Fri, 17 Sep 1993 13:28:22 GMT
> Does the fourport support (AST fourport card) exist for the
> kernel 099PL12? What are the right settings for the kernel?
> Thanx for any hints.
>Yes; from the INFO-SHEET:
>0.3.3 Supported hardware:
> Other hardware: SoundBlaster, ProAudio Spectrum 16, Gravis
> Ultrasound, AST Fourport cards (with 4 serial ports), several
> models of Boca serial boards, the Usenet Serial Card II, several
> flavours of bus mice (Microsoft, Logitech, PS/2).
>You will need the setserial version 2.01 to get the AST Fourport serial
>ports to be configured (in /linux/sources/sbin on tsx-11.mit.edu).
>Configure the AST Fourport cards in enhanced mode, not in compatible
>mode, and use separate IRQ's if you have two Fourport cards --- although
>the Fourport docs claims that two Fourport cards can share an IRQ, I've
>never seen it work. I generally use IRQ 5 and IRQ 2 for my two AST
>Fourport cards.
For detailed info look in the file serial.c in the kernel sources. It is
located in the subdir chr_drv.
I do not have the sources at hand but if I remember correctly there are #define
flags to enable the support for various serial cards ( 3 if I remember
correctly). In my case the auto detect did not work. You can either use
setserial or swith of the autoirq for serial io. I modified the config.in
script for this.
In the source you can also find which IO address and IRQ to use and the major
and minor numbers for the tty entries in /dev