Stefan,
Thanks a lot for the good explanation. I've followed your advises and
now have my required ttySx devices.
Thanks also to BeRo who gave me the same explanation off list.
Best regards
Gustav
Stefan Smietanowski wrote:
>
> Hi.
>
> > I have one PC with the two standard serial ports ttyS0 and ttyS1 plus an
> > STB Fourport card.
> >
> > When I run OS/2 in this PC I had setup one of the STB ports on IRQ 11
> > and the remaining three in IRQ 12, all with different I/O addresses of
> > course.
> >
> > I'm currently trying to configure my serial ports and it was my
> > intention to run setserial from rc.local for ttyS2, ttyS3, ttyS4 and
> > ttyS5.
> >
> > ttyS2 and ttyS3 works fine. But when running setserial for ttyS4 or
> > ttyS5 if fails with the message that /dev/ttyS4 (or 5) doesn't exist,
> > which is also the case.
> >
> > What can I do to 'create' my /dev/ttyS4 and /dev/ttyS5 ?
>
> What you need is to use 'mknod' with the appropriate options.
>
> In /usr/src/linux/Documentation/devices.txt we see that ttys are of
> major 4 and that the ttyS' are from minor 64 and up. We also see it's a
> character device. (That's what we specify to mknod).
>
> ttyS0, 1, 2, 3 are minor 64, 65, 66, 67 so ttyS4 and S5 are 68 and 69.
>
> Run this:
>
> mknod /dev/ttyS4 c 4 68
> mknod /dev/ttyS5 c 4 69
>
> The 'c' is 'character device', the '4' is Major, the '68/69' is minor'.
>
> Then we see that the other ttyS are owner root, group tty and have
> access flags : crw------- .
> Change owner and permission of files:
>
> chown root.tty /dev/ttyS[45]
> chmod 600 /dev/ttyS[45]
>
> Yes, write like that with the brackets. Saves you some writing :)
>
> Now an 'ls -l /dev/ttyS*' should show you that you suddenly have the
> required ttyS'.
>
> Good luck!
>
> // Stefan
--
pgp = Pretty Good Privacy.
To get my public pgp key, send an e-mail to: [EMAIL PROTECTED]
Visit my web site at http://www.schaffter.com
--
To unsubscribe: mail [EMAIL PROTECTED] with "unsubscribe"
as the Subject.
