Date: Sun, 27 Jan 2013 09:10:08 +1030 From: Shane Ambler <FreeBSD@ShaneWare.Biz> To: dweimer@dweimer.net Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: Locking USB Serial Device to Specific Com port Message-ID: <51045B48.40202@ShaneWare.Biz> In-Reply-To: <762f51b7c30dd5c920788336b3eb4fa5@dweimer.net> References: <762f51b7c30dd5c920788336b3eb4fa5@dweimer.net>
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On 27/01/2013 08:15, dweimer wrote:
> I would like to lock down the USB serial port adapter used on the UPS to
> /dev/cuaU0, to make sure the UPS is always monitored and I will get a
> clean shutdown in event of a power failure.
>
> I believe that this requires setting a hint line of some sort in the
> /boot/loader.conf file, but I am having trouble tracking down what this
> should be, or maybe I am on the wrong track. Here is the current
> information from the adpapters, the UPS adapter was connected at boot,
> is on /dev/cuaU0, the other one was plugged in after boot, and is on
> /dev/cuaU1.
start with man devd.conf
You can add your own devd files in /usr/local/etc/devd/
Something along the lines of -
attach 200 {
device-name "cuaU[0-9]+";
match "vendor" "0x067b";
match "product" "0x2303";
action "sleep 2; cd /dev; ln -s ${device-name} upsmonitor";
};
use usbconfig to get info. I am thinking with the similarity of the two
you may need to rely on bus and hubaddr or devaddr to keep each device
identified by usb port location.
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