Re: Cannot access my scanner as normal user

From: Henning Meier-Geinitz (hmg-ml@gmx.de)
Date: Mon Dec 11 2000 - 11:39:19 PST

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In reply to: Raphael Mack: "Cannot access my scanner as normal user"
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Hi,

On Sun, Dec 10, 2000 at 09:19:57PM +0100, Raphael Mack wrote:
> I have a Mustek 6000P scanner and can scan when I am root. If i try to
> scan as normal user scanimage doesn't find any device.

With newer Linux kernels only root has the permission to access
/dev/port or use inb/outb. So you must start the frontends as root or
set them to suid root (not recommended).

> I also tried to
> use the net-backend, but this ends in an seg fault.
> What is wrong here? Do I have to set any accessrights?

In principle, using the net backend for this is possible (if it's
started by root). There seem to be a bug in the net backend that
results in segmentation faults if it's used on localhost. For me
increasing the DEBUG level decreases the chance of segfaults.

SANE_DEBUG_NET=255 xscanimage

Bye,
Henning

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