On 03/14/13 13:08, Warren Block wrote:
On Thu, 14 Mar 2013, Polytropon wrote:
On Thu, 14 Mar 2013 08:48:22 +0000, Arthur Chance wrote:
On 03/13/13 21:56, Arthur Chance wrote:
I'm trying to get devel/arduino working.[snip]
I shouldn't work 13 hour days. Now I've had some sleep, I've spotted
what I missed last night. The underlying code from comms/rxtx is trying
to create a lock file in /var/spool/lock and that is only writeable by
user uucp and group dialer. Given that I have absolutely no serial
devices (or ports) on this box apart from the Arduino when it's plugged
in, can anyone see any problems with making the lock directory world
writeable?
Simply add your user (or the account the program is running
under) to the "dialer" group. This has been a common method
to allow users to access dialing programs (which were reserved
for root use without this group addition).
This is also mentioned when the Arduino port is installed:
To allow serial port locking, add your user to the dialer group:
pw usermod myuser -G dialer
Warren and Polytropon, thanks. I realised that this morning and added
myself to dialer. I'd originally thought the requirement for dialler
group was simply to access /dev/cuaU0 and wrote a devd.conf file to set
that as mode 666. It was only after catching up with my sleep I thought
of lock files.
However, my point was a little more general than just fixing this
specific access problem - many desktop machines these days don't have
serial lines or any need for dialer programs, and adding yet another
group to an ever increasing list just so that I can talk to an Arduino
seems a little redundant. (As does using /var/spool/lock - isn't that
what /dev/cuaU0.lock is for?)
For anyone else thinking of playing with Arduinos on FreeBSD, this bug
http://www.freebsd.org/cgi/query-pr.cgi?pr=163749
in avrdude bit me (on a 9.1-RELEASE-p1 amd64 machine, talking to an
Arduino Uno R3). The second patch (patch-arduino.c) fixed the problem,
but it's a shame it's not included in the port 14 months after it was
submitted.
_______________________________________________
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
