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Article #315

Digitizier input to a Decstation 5000

#315
From: Aditya Talwar
Date: Mon, 06 Apr 1992 18:43
17 lines
1195 bytes
Hi Ultrix/Decstation managers;

I am trying to help one of my colleagues to read from a Digitizier, attached
to a DecStation 5000. There are two ports marked at the back, port 1 and
port 2. We started out by assuming port 2 to correspond to /dev/tty00,
we defined the entry in the /etc/ttys file for continous reading from
the digitizier. He makes an ioctl call to /dev/tty00 setting it up for
ready only, but it fails and comes back with status -1, the errno is 25,
which I believe is, cann't talk to device, after spending some time, we
are not sure if we are using the correct /dev/tty** file to set and read.
If anybody has a clue to the settings for Digitizier or the correspondence
between /dev/tty** and ports at the back, please send me mail, it will lifts
the spirits of the hardware manual-less user.

Thanks
cosc4hf@menudo.uh.edu
aditya
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Message-ID: <1992Apr6.184325.22753@menudo.uh.edu>
Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!menudo.uh.edu!cosc4hf

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Newsgroups: comp.sys.dec,comp.unix.ultrix
Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!menudo.uh.edu!cosc4hf
From: cosc4hf@menudo.uh.edu (Aditya Talwar)
Subject: Digitizier input to a Decstation 5000
Message-ID: <1992Apr6.184325.22753@menudo.uh.edu>
Organization: University of Houston
Date: Mon, 6 Apr 1992 18:43:25 GMT