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Home > Archive > Unix Programming > January 2004 > access to unix devices
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access to unix devices
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| Hi,
i'm trying to use the parallelport of my freebsd box as an cheap
binary io module from apache as a server side include.
So if i try, as user nobody, to fopen the /dev/lpt i get an error
"unable to open device permission denied". When i su to root it works.
How/where can i set the permission to access the device? Are there any
other hints?
Thanks in advance
Mike
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| Jens.Toerring@physik.fu-berlin.de 2004-01-23, 5:06 pm |
| Mike <mike.koeppel@solnet.ch> wrote:quote:
> i'm trying to use the parallelport of my freebsd box as an cheap
> binary io module from apache as a server side include.
> So if i try, as user nobody, to fopen the /dev/lpt i get an error
> "unable to open device permission denied". When i su to root it works.
> How/where can i set the permission to access the device? Are there any
> other hints?
Obviously, you got to change the permissions for /dev/lpt. Do a
chmod 666 /dev/lpt
to allow both read and write access for everyone to the device file.
Regards, Jens
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