CVS commit: src

["Jason R Thorpe" <thorpej%netbsd.org@localhost>]

Module Name:    src
Committed By:   thorpej
Date:           Sat Mar 30 06:29:01 UTC 2024

Modified Files:
        src/distrib/sets/lists/base: mi
Added Files:
        src/share/examples/devpubd/hooks: 99-ucom-symlinks Makefile

Log Message:
Add an example devpubd hook that makes stable path names, using symlinks,
for USB serial interfaces, regardless of where the interface is connected
or the order of enumeration.  This requires the USB device to have a
"serialnumber" to function.  Examples:

- uftdi serial adapter with two ports:

        /dev/tty-uftdi-FT64S4YP-1 -> /dev/ttyU0
        /dev/tty-uftdi-FT64S4YP-2 -> /dev/ttyU1

- uslsa serial adapter:

        /dev/tty-uslsa-01E7ABCC -> /dev/ttyU4

This allows something like the following in /etc/remote:

sun3:dv=/dev/tty-uftdi-FT64S4YP-1:br#9600:pa=none:dc:

That path will always be stable regardless of which /dev/ttyU* node is
actually assigned when the serial adapter is plugged in.


To generate a diff of this commit:
cvs rdiff -u -r1.1335 -r1.1336 src/distrib/sets/lists/base/mi
cvs rdiff -u -r0 -r1.1 src/share/examples/devpubd/hooks/99-ucom-symlinks \
    src/share/examples/devpubd/hooks/Makefile

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.