[RDD] Serial Ports

Michael mbarnes at srnradio.com
Wed Sep 9 16:06:51 EDT 2009


I know there are Debian/Ubuntu fans out there, so maybe you can help.

Normally, I can do

salem at rdserv:~> ll /dev/ttyS*
crw-rw----  1 root uucp 4, 64 2009-09-09 13:14 /dev/ttyS0
crw-rw----  1 root uucp 4, 65 2009-06-25 14:30 /dev/ttyS1
crw-rw----  1 root uucp 4, 66 2009-06-25 14:30 /dev/ttyS2
crw-rw----  1 root uucp 4, 67 2009-06-25 14:30 /dev/ttyS3
crw-rw----  1 root uucp 4, 68 2009-06-25 14:30 /dev/ttyS4
crw-rw----  1 root uucp 4, 69 2009-06-25 14:30 /dev/ttyS5
crw-rw----  1 root uucp 4, 70 2009-06-25 14:30 /dev/ttyS6
crw-rw----  1 root uucp 4, 71 2009-06-25 14:30 /dev/ttyS7

and see that I can use 8 serial ports.

I did the same thing on a fresh install of Kubuntu 9.04 downloaded this 
morning and it showed 8 serial ports.  But I messed up the partitioning, 
so I re-installed everything.

Now it only shows four serial ports.  I have one on-board port and a 
four port expansion card for a total of five ports.

Any ideas on how to get Kubuntu to again recognize or allow ttyS4-7?

Thanks,
Michael


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