Date: Tue, 17 May 2011 03:00:00 -0400 (EDT) From: Charles Sprickman <spork@bway.net> To: freebsd-usb@freebsd.org Subject: usb serial port device naming Message-ID: <alpine.OSX.2.00.1105170243500.1983@hotlap.nat.fasttrackmonkey.com>
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Hello, I recently started moving our console server from one box (4.11) to another (8.1). The old box had some RocketPort PCI cards and a 16 port USB to serial adapter. I moved the USB to serial device to the 8.1 box and added another 8 port USB to serial adapter. I moved the 16 port box without a reboot, and then added the 8 port box. I started setting up conserver (console server software) with the new device names, and then decided perhaps a reboot to verify the device names "stuck" across reboots was in order. Sure enough, on reboot the 8 port device preceded the 16 port - meaning my /dev/ttyU0 moved from being the first port on the 16 port box to being the first port on the 8 port box. Is there anything I can do to "lock" these port assignments? I suspect that on a reboot the order will stay the same, but if someone flips the ports around or unplugs either of these while the box is up all my console mappings will get scrambled. Thanks, Charles
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