Subject: Re: TIOCMGET
To: Michael C. Richardson <>
From: Bill Studenmund <>
List: current-users
Date: 09/22/1997 21:46:35
On Fri, 19 Sep 1997, Michael C. Richardson wrote:

>   I was hoping to fill in the TIOCMGET code in com.c so that mgetty
> might work better. (I can receive faxes, but not send them. Yes,
> probably flow control issues, but my hardware is fine...)
>   dev/isa/com.c has:
> 	case TIOCMSET:
> 	case TIOCMBIS:
> 	case TIOCMBIC:
> 	case TIOCMGET:
> 	default:
> 		return (ENOTTY);
>   Thinking this was an anomaly, I looked at arch/sparc/sparc/zs.c. Same thing.
>   Okay, what about arch/sun3/sun3/zs.c... Not even mentioned. Maybe TIOCMGET
> is supposed to be handled above this layer?
>   Nope: arch/hp300/dev/dca.c has support for it.
>   Has it always been like this?

I think at one point the sun3/zs.c had it. com.c used to have it too. I
have patches to the M.I. z8530tty driver which will add it, but it's stuck
w/ the rest of the patches (which add mac68k support) in evaluation. :-(

Take care,