Re: Serial Port Config.

[Ron Marshall - Sun Toronto SE <ron.marshall@Canada>]

I think some confusion lies here between a HUNG port and a configured
one.  "boot -r" is the command you use on a SPARC system to reconfigure
all attached hardware.  The Serial ports are on the system board so they
get rebuilt.  

I think that a reboot without the "-r" option would unhang a port just
fine.

You can usually reset a hung /dev/tty using the stty command with the
option 0 without rebooting the system.

Regards,
Ron

-- 
________         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Douglas Fallstrom wrote:
> 
> This is not true, the devices for the serial ports should be built even if
> nothing is connected to the serial port, anything else must be a bug.
> 
> And as Casper said below, most likely is a login/ttymon is controlling the port,
> that is default. Easy to change with pmadm or admintool.
> 
> /D.
> 
> =>Date: Tue, 17 Feb 1998 09:46:37 -0700 (MST)
> =>From: emonet@xxxxxxxxxxxxxxxxxx (Thierry Emonet)
> =>To: pilotmgr@xxxxxxxxxxxxxxxxxxxx
> =>Subject: Re: Serial Port Config.
> =>
> =>
> =>I don't understand what you mean with this (I am not a unix expert) but
> =>I had the same problem... and rebooting the machine fixed the
> =>problem... it really seems that the workstation (SUN Sparc 20 in my
> =>case) does not care about what you connect in the serial port until
> =>youreboot it.
> =>
> =>Thierry
> =>
> =>>
> =>>
> =>> >I believed I fixed this by logging out and rebooting (reboot -r) the
> =>> >Sparc.  This made the machine see that something was attached and using
> =>> >the serial port.  First make sure you are on the TTYA and not the TTYB
> =>>
> =>>
> =>> Serial ports are not detected depending on what is connected; so if
> =>> boot -r helped it can only have been by accident.
> =>>
> =>> But do make sure that you don't have login/ttymon running on the port
> =>> when you connect the pilot.
> =>>
> =>> Casper
> =>> ------------------------------------------------------------------------
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