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On Sun, 14 Oct 2012 21:48:37 +0100 (BST)
Tom Davies <> wrote:

Hi :)
You did the right thing by posting to this list first but your
question is waaay beyond the skills of most people on this list.  

I think you need to copy&paste your question to the devs list and
maybe ask your own distro's devs too.  It might be worth also asking
in the general Gnu&Linux forum because
they can usually handle almost any distro.  

Errrr, it's worth letting people know which distro you are using and
version number might help too. Good luck and happy hunting!
Regards from
Tom :)  

--- On Sun, 14/10/12, chaonis <> wrote:

From: chaonis <>
Subject: [libreoffice-users] BASIC script how to read/write system
files, like /dev/null in Linux To:
Date: Sunday, 14 October, 2012, 20:08

I am trying to write scripts accessing the system files, such
as /dev/ttyS0. If I use "Open" I got the error "Device I/O error"
message. Are there any special function call needed to be done for
the system files? User permission is good as I can access to the file
using any other Linux commands.

Following is the code I tried. It stalled on the first "Open"

Sub Main
    Dim iNumber As Integer
    Dim aFile As String
    aFile = "/dev/ttyS0"
    iNumber = Freefile
    Open aFile For Output As #iNumber
    Print #iNumber, "*IDN?"
    close #iNumber
    iNumber = Freefile
    Open aFile For Input As #iNumber
    While not eof(iNumber)
        Line Input #iNumber, sLine
        If sLine <>"" then
            sMsg = sMsg & sLine & chr(13)
        end if
    Close #iNumber
    Msgbox sMsg
End Sub

View this message in context:
Sent from the Users mailing list archive at

Hi Chanois,
As Tom said  you should ask this on the devs lists.  Dev files have
different formats dependent on the device.  I don't believe they are
even ASCII files in some cases, using various codes.

Tom  :<))  (note double chin)

“What we do for ourselves dies with us. What we do for others and the
world remains and is immortal.”  Albert Pine
Tom Taylor - retired penguin
AMD Phenom II x4 955 -- 4GB RAM -- 2x1.5TB sata2
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