aea8ae19c5
git-svn-id: https://svn.code.sf.net/p/gphoto/code/trunk/libgphoto2@5066 67ed7778-7388-44ab-90cf-0a291f65f57c
251 lines
7.1 KiB
XML
251 lines
7.1 KiB
XML
<?xml version='1.0' ?>
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<!-- =================================================================
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About this file:
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- It is written in Docbook XML
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- You're best off using an XML editor for this file
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- If you have installed the Docbook XML DTDs properly,
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you can do syntax checks
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- You can view this file directly using any XML+CSS capable browser.
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Examples are Mozilla, Galeon, Opera.
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- If you need more information about Docbook and XML, have a look at
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http://docbook.org/ and http://nwalsh.com/
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- We use Tim Waugh's xmlto to process this file within the build
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system, but you're free to use any other adequate processing tool,
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of course :-)
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================================================================= -->
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<?xml-stylesheet type="text/css" href="docbook-xml.css"?>
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<!--
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leave DOCTYPE commented out for easy inclusion as external entity
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-->
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<!-- DOCTYPE qandaset PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" -->
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<qandaset>
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<qandaentry>
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<question>
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<simpara>What can I do about the error message "Could not find USB device"?</simpara>
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</question>
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<answer>
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<para>
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The exact error message looks like
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</para>
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<screen>
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Could not find USB device (vendor 0x0000, product 0x0000). Make
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sure this device is connected to the computer
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</screen>
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<para>
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You have to set up the permissions on your USB device correctly.
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This is described in The gPhoto2 Manual, which is available at
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<ulink url="http://n-dimensional.de/projects/digicam/The_gPhoto2_Manual/">http://n-dimensional.de/projects/digicam/The_gPhoto2_Manual/</ulink>.
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See especially the section "Setting up permissions for USB ports".
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</para>
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</answer>
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</qandaentry>
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<qandaentry>
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<question>
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<simpara>gphoto2 does not find my camera. What shall I do?</simpara>
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</question>
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<answer>
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<para>
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First try to run "gphoto2 --list-ports" and look whether the ports
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you want to use are listed there:
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</para>
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<itemizedlist>
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<listitem>
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<simpara>
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For serial devices, the port with the appropriate device must be
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listed
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</simpara>
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</listitem>
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<listitem>
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<simpara>
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For USB devices, you need the "usb:" port in the list. If you
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don't see it, check whether you compiled gphoto2 with libusb
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support.
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</simpara>
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</listitem>
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</itemizedlist>
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<para>
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Then try to run "gphoto2 --auto-detect" and look whether the camera
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is detected.
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</para>
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<para>
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If your gphoto2 cannot access the USB device as non-root users, you
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have to set up hotplugging correctly. See FIXME for details.
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</para>
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<para>
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AND DO NOT RUN gphoto2 AS ROOT. And no other libgphoto2 frontend either.
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</para>
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</answer>
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</qandaentry>
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<qandaentry>
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<question>
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<simpara>Why do I get the error message "Could not claim the USB device"?</simpara>
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</question>
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<answer>
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<para>
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The exact message looks like
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</para>
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<screen>
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*** Error ('Could not claim the USB device') ***
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Could not claim interface 0 (Operation not permitted). Make sure no
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other program or kernel module (e.g. dc2xx or stv680) is using the
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device and you have read/write access to the device.
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</screen>
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<para>
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You have to make sure that no such kernel module is loaded and that
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you have set up the permissions on your USB device correctly,
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such that you have (non-root) write access to the camera device.
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How to set this up, is described at FIXME.
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</para>
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</answer>
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</qandaentry>
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<qandaentry>
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<question>
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<simpara>
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Why does my Canon PowerShot G1/Pro 90 IS not work with gphoto2
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when using the AC adapter?
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</simpara>
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</question>
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<answer>
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<para>
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This is a longstanding bug which we cannot fix since none of
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the active gphoto2 developers own one of these cameras. Your
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options are as follows, in descending order of preference:
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</para>
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<itemizedlist>
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<listitem>
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<simpara>
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Fix it and send us a patch.
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</simpara>
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</listitem>
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<listitem>
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<simpara>Donate a G1 to one of the active Canon driver
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developers.</simpara>
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</listitem>
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<listitem>
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<simpara>Run the camera on battery instead of the AC adapter.</simpara>
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</listitem>
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</itemizedlist>
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<para>
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There is some more info regarding this at
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<ulink url="http://krixor.xy.org/fredrik/gp/canon-g1-ac-problem/">http://krixor.xy.org/fredrik/gp/canon-g1-ac-problem/</ulink>.
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Good luck.
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</para>
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</answer>
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</qandaentry>
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<qandaentry>
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<question>
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<simpara>I've got a serial camera, but gphoto2 doesn't work on SuSE 7.0
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(or greater). You told me that my camera is supported! Fix
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it!</simpara>
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</question>
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<answer>
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<para>
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Cool down, Joe, and listen to the wise words of Linda
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MacPhee-Cobb:
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</para>
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<para>
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<citation>
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If you are not getting a response from a camera plugged into
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the serial port, check your /var/log/boot.msg file for the
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following entry near the end:
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</citation>
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<screen>
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*This package use the ttyS0 device by default.
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The installation of this package only makes sense
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if you use a braille display.
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</screen>
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<citation>
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This is from blinx, and you will need to turn it off,
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or better, uninstall it.
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</citation>
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</para>
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</answer>
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</qandaentry>
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<qandaentry>
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<question>
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<simpara>Dudes, Windows is the way to go. How do I compile
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gphoto2 for that environment?</simpara>
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</question>
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<answer>
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<para>
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We don't have the money to buy Windows and something like Visual C.
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Therefore, we can't provide you a gphoto2 for Windows. You have two
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choices (at least):
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</para>
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<itemizedlist>
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<listitem>
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<simpara>
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Buy a fast computer, buy Windows and Visual C and some manuals on
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how to access USB or serial ports on Windows. Send all that
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including a blank cheque to us (ask for the address on
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gphoto-devel@gphoto.org).
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</simpara>
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</listitem>
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<listitem>
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<simpara>
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Try to figure out how to get gphoto2 working on Windows
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and send us the patches.
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</simpara>
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</listitem>
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</itemizedlist>
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</answer>
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</qandaentry>
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<qandaentry>
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<question>
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<simpara>I wanna have CVS write access. How do I get one?</simpara>
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</question>
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<answer>
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<simpara>
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We provide CVS write access to persons that show
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<emphasis>continued</emphasis> interest in a
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<emphasis>specific part</emphasis>
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of gphoto2.
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If there is already a person maintaining this
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specific part of gphoto2 (i.e. a camera driver), we prefer you
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submit patches to the maintainer who will then check them in
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or request modifications.
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</simpara>
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</answer>
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</qandaentry>
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<qandaentry>
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<question>
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<simpara>You took away my CVS write access! What did I do
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wrong?</simpara>
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</question>
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<answer>
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<para>
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If your name is not listed in gphoto2/MAINTAINERS, and if we
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haven't heard from you lately, we assume that you finished
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your work on gphoto2 and that you don't need write access any
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longer. If this is not the case, please contact one of the
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project admins.
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</para>
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</answer>
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</qandaentry>
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</qandaset>
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