From: Gianluca Riccardi <gianluca@moonwatcher.it>
To: linux-admin@vger.kernel.org
Subject: IBM x205 and /dev/ttySx
Date: Wed, 05 Jan 2005 22:02:04 +0100 [thread overview]
Message-ID: <41DC55CC.5050105@moonwatcher.it> (raw)
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
reply other threads:[~2005-01-05 21:02 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=41DC55CC.5050105@moonwatcher.it \
--to=gianluca@moonwatcher.it \
--cc=linux-admin@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
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).