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Old 07-29-2003, 05:44 AM   #1
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Unhappy can not accsess ttyS0 or ttyS1

I have a problem with softimage XSI installation in Linux Red Hat 7.3...
spm service has to be installed in order to run softimage and he requires free ttyS0 or ttyS1.
When I start spm service I receive error message which says that he can not accsess ttyS0 or ttyS1 depending on which one I choose...

Can you tell me what could be the problem here?

Thanks x 100000000000000e20
Old 07-29-2003, 05:58 AM   #2
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Unhappy can not accsess ttyS0 or ttyS1

[edited} Double post moved out of another thread then merged.[/edited]

Last edited by trickykid; 07-29-2003 at 08:08 AM.
Old 07-29-2003, 08:09 AM   #3
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I removed your double post you placed in the screenshot thread here and removed the text as it was the same as what your asking here. Please abide by the rules, do not hijack other threads that have nothing to do with your actual question and please do not double post the same questions.
Old 08-01-2003, 10:11 AM   #4
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don't know about softimage or spm, but i had some problems writing code that used /dev/ttyS0 a while back. The solution was to use /dev/cua0 instead. afaict they worked the same way, only ttyS0 didn't hang up properly after I disconnected.

Not sure if that will help any.

Old 09-16-2003, 10:45 AM   #5
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I had some problems with ttyS0 and ttyS1 when trying to access a camera using those ports. It turned out to be a permission problem. You might want to check that out.
Old 11-30-2003, 11:36 PM   #6
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You can check the detected serial ports by

dmesg | grep tty

it will show the detected serial ports with assigned names.


Old 03-11-2004, 07:57 PM   #7
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I use serial ports on Linux fairly regularly, and I have found two things that
can bite you quite often:

1. The port is turned off or disabled in the BIOS. I run into this one a lot.
I think some Windoze Modem installation programs will do this. This is the
first thing I check when having a problem with ttyS0 or ttyS1. So get into the BIOS setup at power on time, and make sure those ports are enabled.

2. The labels for the ports are incorrect. Sometimes the header gets plugged
into the wrong port on the back of the case. So what you think is ttyS0 is really ttyS1 (and vice versa).

Hope this helps



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