On 2013-01-27 09:29, Warren Block wrote:
On Sun, 27 Jan 2013, dweimer wrote:
On 2013-01-26 16:40, Shane Ambler wrote:
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.
OK, so I was looking in the wrong direction, which might explain why
my searching wasn't finding anything.
However I might still be out of luck, after doing some checking, and
a reboot the only difference I can find is below.
dev.uplcom.0.%location: bus=1 hubaddr=1 port=0 devaddr=2 interface=0
dev.uplcom.1.%location: bus=1 hubaddr=3 port=0 devaddr=3 interface=0
usbconfig may be able to get the device serial number, although they
may not be unique. Jamming useful scripts inside an action can be
complicated. It may be easier to just trigger an external script.
That's just it, can't get usbconfig to give me anything different
between the two, they don't appear to have a serial number set on them.
# usbconfig -d ugen0.2 dump_device_desc
ugen0.2: <USB-Serial Controller Prolific Technology Inc.> at usbus0,
cfg=0 md=HOST spd=FULL (12Mbps) pwr=ON
bLength = 0x0012
bDescriptorType = 0x0001
bcdUSB = 0x0110
bDeviceClass = 0x0000
bDeviceSubClass = 0x0000
bDeviceProtocol = 0x0000
bMaxPacketSize0 = 0x0040
idVendor = 0x067b
idProduct = 0x2303
bcdDevice = 0x0300
iManufacturer = 0x0001 <Prolific Technology Inc.>
iProduct = 0x0002 <USB-Serial Controller>
iSerialNumber = 0x0000 <no string>
bNumConfigurations = 0x0001
# usbconfig -d ugen0.3 dump_device_desc
ugen0.3: <USB-Serial Controller Prolific Technology Inc.> at usbus0,
cfg=0 md=HOST spd=FULL (12Mbps) pwr=ON
bLength = 0x0012
bDescriptorType = 0x0001
bcdUSB = 0x0110
bDeviceClass = 0x0000
bDeviceSubClass = 0x0000
bDeviceProtocol = 0x0000
bMaxPacketSize0 = 0x0040
idVendor = 0x067b
idProduct = 0x2303
bcdDevice = 0x0300
iManufacturer = 0x0001 <Prolific Technology Inc.>
iProduct = 0x0002 <USB-Serial Controller>
iSerialNumber = 0x0000 <no string>
bNumConfigurations = 0x0001
--
Thanks,
Dean E. Weimer
http://www.dweimer.net/
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