[aclug-L] Re: ttyS1=[alt + F4] [oh ooh]

[Michael Holmes <maholmes@xxxxxxxxxx>]

I ended up took the addition off the inittab, for now, I am lazy and I will 
make it work!!
I wonder if I could put a ttys(X) into the kernel directly.

Michael

Jonathan Hall wrote:

> > > You're trying to do PPP over the connection?
> >
> > no, ppp0 would be over ttyS3-- isa pnp modem--jumper set
>
> Okay
>
> > > There's no reason you shouldn't be able to... I just didn't know that's 
> > > what
> > > you were trying to do.
> > >
> > > What you describe sounds like a possible IRQ conflict... Are you sure
> > > nothing else is using the same IRQ ttyS1 is using (IRQ3 would be normal).
> >
> > not now, but when up and running there will be a crash if I tried to bring 
> > up the ppp
> > while I was using the ttyS1 as they share the same IRQ.
>
> If at all possible, you really should get different IRQs for each serial
> port...e ven if you aren't using the same IRQ on two ports at the same time.
> Set ttyS3 to IRQ5 or something if you can.  I'd be willing to bet that this
> sharing of IRQs is what's causing your problems.
>
> > > Also... are you using a null-modem cable, or a standard serial cable?
> >
> > yes I am using a null modem, and I do get use out of it now, but when the 
> > mgetty line
> > is in my inittab, it also places a lock file on the ppp also.  The ppp is 
> > dialing and
> > then sees the lock file, and hangs up.
>
> There's a way to share the line between ppp and mgetty... see the mgetty man
> page, I don't remember the exact mgetty switch to use right off hand.  I do
> know I have done it before, though.
>
> > > And are both ends attempting to communicate at 38400?  And do both ends
> > > have at least 16450 UARTs (I would assume they do if they're 486's or
> > > newer).
> >
> > they are both set at the same speed first 19200 then I bumped it to 38400.  
> > If they
> > are at different speeeds, you get gibberish at both ends.  I get the proper 
> > graphics
> > and communications, but it is only 16 bytes shot down, and then it waits 
> > 120 seconds
> > and sends another 16 bytes..... (this is on the direct connection)
>
> Okay.  If they're both using 16550 UARTs, you should be able to go clear up
> to 115200 without problems... Probably not a big deal if you're just doing
> text stuff, but if you start using PPP or transfering files over the link,
> etc, the extra speed will no doubt be appreciated. :-)
>
> --
> "I'm just glad it'll be Clark Gable who's falling on his face and not Gary
> Cooper." -- Gary Cooper, on his decision to not take the leading role in
> "Gone With The Wind."
> --
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>   Jonathan Hall  *  jonhall@xxxxxxxxxxxx  *  PGP public key available
>  Systems Admin, Future Internet Services; Goessel, KS * (316) 367-2487
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