c7a0c57140
* doc/FAQ: Added "gphoto2 does not work..." general question git-svn-id: https://svn.code.sf.net/p/gphoto/code/trunk/libgphoto2@4676 67ed7778-7388-44ab-90cf-0a291f65f57c
122 lines
4.4 KiB
Plaintext
122 lines
4.4 KiB
Plaintext
========================================================================
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Q: gphoto2 does not find my camera. What shall I do?
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A: 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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- For serial devices, the port with the appropriate device must be
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listed
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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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Then try to run "gphoto2 --auto-detect" and look whether the camera
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is detected.
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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 gphoto2.txt for details.
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AND DO NOT RUN gphoto2 AS ROOT.
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========================================================================
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Q: I get the error message
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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 device and
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you have read/write access to the device.
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What can I do to make it work?
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A: You have to make sure that no such kernel module is loaded and that
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you have to set up the permissions on your USB device correctly.
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For Linux, this is described in the file named gphoto2.txt in
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your gphoto2 documentation directory (named doc/ in the source tree).
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========================================================================
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Q: I get the error message
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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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What can I do to make it work?
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A: You have to set up the permissions on your USB device correctly.
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For Linux, this is described in the file named gphoto2.txt in
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your gphoto2 documentation directory (named doc/ in the source tree).
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========================================================================
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Q: gphoto2 does not work, the driver reports some error messages.
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What shall I do?
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A: First of all make sure, that you have only one instance of gphoto2
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installed on your system. Unless you know what you're doing you should
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remove all gphoto2 installation, then you may do (as root):
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rm -rf /usr/local/lib/gphoto2*
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rm -rf /usr/lib/gphoto2*
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(above applyes specialy if you used package and CVS version)
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After that install newest gphoto2 and test whether it works now.
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If not, see below.
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========================================================================
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Q: My Canon PowerShot G1/Pro 90 IS doesn't work with gphoto2 when using
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the AC adapter. What should I do?
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A: This is a known bug which we cannot fix since none of the active
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gphoto2 developers own one of these cameras. Your alternatives are as
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follows :
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Fix it and send us a patch.
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Donate a G1 to one of the active Canon driver developers.
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Run the camera on battery instead of the AC adapter.
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There is some more info regarding this at
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http://krixor.xy.org/fredrik/gp/canon-g1-ac-problem/
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good luck.
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========================================================================
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Q: I have a special problem with CameraXYZ. Where can I find information
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about it?
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A: You can look into the README file of your driver <driver>. It is
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located in camlibs/<driver>/ in your source tree.
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========================================================================
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Q: I run Linux 2.4.x and I can't get USB to work at all. I keep getting
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kernel: usb_control/bulk_msg: timeout
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kernel: usbdevfs: USBDEVFS_BULK failed dev 3 ep 0x81 len 64 ret -110
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How can I make USB work?
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A: No idea. Sometimes it works and sometimes it doesn't. If you know a
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solution, please let us know.
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========================================================================
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Q: 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 it!
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A: Cool down, Joe, and listen to the wise words of Linda MacPhee-Cobb:
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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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*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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This is from blinx, and you will need to turn it off,
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or better, uninstall it."
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========================================================================
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