Detect serial connection during boot

To: debian-arm <debian-arm@lists.debian.org>
Subject: Detect serial connection during boot
From: "Lars C" <lars159@gmail.com>
Date: Wed, 26 Mar 2008 20:45:26 +0100
Message-id: <194393900803261245j334e8c1as6030511dec2035c7@mail.gmail.com>

Hi
I would like to make an check during boot up that would detect if I have a serial connection is connected.

Is this possible to create? could use some ioctl( ()to check the DTR/RTS and could I somehow integrate this with Grub so if a serial connection is detected the kernel is started in fail safe mode.

regards Lars

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- Re: Detect serial connection during boot
  - From: lsorense@csclub.uwaterloo.ca (Lennart Sorensen)

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