Renaming serial ports in unix

 
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Operating Systems OS X (Apple) Renaming serial ports in unix
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Old 05-24-2012
Renaming serial ports in unix

Hello everyone, this is my first post and I am by no means a unix expert, so I hope I explain my issue well.

I'm on a mac (mac mini), 10.7.

My question is about serial port names. I have an arduino microcontroller plugged in via usb, and every time the computer is shut down it gives the arduino a new auto-generated name (some variation of tty.usbmodem111 or tty.usbmodem121).

The problem is that I am communicating with my arduino via firmata with an external program where I have set the correct serial port name by hand. So of course, whenever the computer restarts and then renames the serial port that my arduino is on, my program can no longer find it!

So I need to find a way to manage this issue, either by making sure it always names the arduino serial port consistently. Or, maybe a script that can be executed to re-name the serial port to something pre-set. Or any other ideas for dealing with this renaming issue.

I really need to solve this problem, as I will not be able to rename the serial port by hand each time.

Any help would by very greatly appreciated, I really need to solve this issue.

Best,
Erik
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HP-SEARCH-MAC(1)					User Contributed Perl Documentation					  HP-SEARCH-MAC(1)

NAME
hp-search-mac -- HP switch search tool. DESCRIPTION
HP-search-MAC is an util that can query HP switches for their connection table. It then allow you to search for a MAC address and tell you where it is physically connected (best match first). . The functionality is similar to traceroute but on Ethernet level and only for HP switches. USAGE
hp-search-mac [options] [MAC] [...] OPTIONS
hp-search-mac [options] mac [ [options] mac ] [...] options: --dl n Set debug level to n. --help Print this help. --hostname host[=>community] | -h host[=>community] Set a switch name to search. You can also set this in /etc/hp-search-mac.conf or ~/.hp-search-mac.conf. The hash to set is \%switches. Mac: You can use some different formats: ff:ff:ff:ff:ff:ff (hex) ff-ff-ff-ff-ff-ff (hex) 0.123.0.12.0.12.0 (dec) CONFIGURATION: \%switches: This is a normal perl hash of the form \%switches = ("host" => "community", ...); AUTHOR
Ola Lundqvist <ola@inguza.com> SEE ALSO
snmp-walk(1) snmp-get(1) hp-search-mac Mon Apr 7 21:21:44 CEST 2008 HP-SEARCH-MAC(1)