Robert Moskowitz wrote:
On 08/22/2014 05:06 PM, Joe Zeff wrote:
On 08/22/2014 02:00 PM, Robert Moskowitz wrote:
I found out about the lsusb command.
It is reporting that they all have the same ID:
Of course they do. They all have the same characteristics so there's nothing
to tell them apart until you attach something to them.
They are by the same company and I bought a lot of 5, so they are the same. But
no burnt in USB device number. Nothing like RFID for USB devices. Sigh.
Thus I need to bring up screen and get the host to respond to figure out which
host is which ttyusb.
That sounds wrong. I'm not saying I'm sure it's wrong, but I working on a system
which was using a setup like that for status displays. They found four extra
video screens really confusing to set up, and had some serial terminals around
to use. From memory, they did a rule in
/etc/udev/rules.d/70-persistent-{something}.rules
and that always gave the right names to the same devices.
I saw this in action, but I didn't set it up, I'm still looking for an easy to
understand doc on multiple monitor setup, because I do it at most once a year
when I get paid to relearn it. ;-)
--
Bill Davidsen <davidsen@xxxxxxx>
"We have more to fear from the bungling of the incompetent than from
the machinations of the wicked." - from Slashdot
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