* IBM x205 and /dev/ttySx
@ 2005-01-05 21:02 Gianluca Riccardi
0 siblings, 0 replies; only message in thread
From: Gianluca Riccardi @ 2005-01-05 21:02 UTC (permalink / raw)
To: linux-admin
hello all,
i'm using three IBM x205 running Debian 3.0r4 and Linux 2.4.26 and i'm
having the following misbehavior:
trying to use a device connected on the ttySx i'm not able to
communicate with it, it's a an italian UPS connected for
control/management on /dev/ttyS0, none of the three servers are able to
communicate with it, but i tried two commercial motherboards running the
same OS on the same serial ports are just fine. The answer i've had from
the UPS seller is that they always had this kind of problem with IBMs
which isn't such a great answer i guess. Did someone ever had the same
problem using serial ports and IBM servers?
What i think is that the voltage +/- 5V generates a misagreement between
the hardware and the driver, but at the moment i'm only guessing i
didn't get deep on the matter yet.
thanks in advance,
Gianluca Riccardi
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2005-01-05 21:02 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2005-01-05 21:02 IBM x205 and /dev/ttySx Gianluca Riccardi
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).