Serial Port Bug?

[Rick Stevens]

On Tue, 2007-11-27 at 15:05 -0700, Karl Larsen wrote:
> Albert Graham wrote:
> > Karl Larsen wrote:
> >> Lamar Owen wrote:
> >>> On Tuesday 27 November 2007, Karl Larsen wrote:
> >>>  
> >>>>     I have a software I like to use called gmfsk which uses the serial
> >>>> port to turn on and off the transmitter in my radio. It worked fine on
> >>>> my old computer. Now when I try to run gmfsk it puts up an error panel
> >>>> that says "Not a serial or parallel port". This made me think the new
> >>>> computer which has a serial port that is not working.
> >>>>     
> >>>
> >>> Is the serial port enabled in the BIOS?  What does the command
> >>> dmesg | grep ttyS
> >>> give you? (upper case S).
> >>>   
> >>    Hi Lamar, I get nothing from dmesg | grep ttyS   and I even tried 
> >> /dev/ttyS :-)
> >>
> > Try: dmesg|grep -i serial
> >
> > Also, I think the driver supports 4 ports rather than saying you have 
> > 4 ports, as the chances are you only have 2 (one internal + one 
> > external).
> >
> > Al.
> >
>     Well that gets nothing. And I have only one serial plug on the 
> computer. Not sure why grep missed it...
> 
>     Yes this worked:
> 
> [root at k5di ~]# dmesg | grep Serial
> Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
> [root at k5di ~]#
> 
> It took a capital S in Serial :-)

When in doubt, "grep -i" ignores case in matches.  "dmesg | grep -i
serial" would've caught it.

"man" is your friend.

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- Rick Stevens, Principal Engineer             rstevens at internap.com -
- CDN Systems, Internap, Inc.                http://www.internap.com -
-                                                                    -
-                   Never try to outstubborn a cat.                  -
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