usb digital camera problems

[Graham]

On Saturday 02 Jul 2005 01:27, Corey Bettenhausen wrote:

> >    Spent the afternoon trying to download pictures from my Minolta
> > dimage e201 digital camera.....without success.
> > The message log says  USB has recognized the
> > camera...but that's all.  It apparently recognizes the camera (USB
> > mass storage type) as a scsi disk for pete's sake.
[snipped]

The Minolta Dimage e201 is a model expressly supported by gphoto2 as a 
USB Mass Storage Device.  However, there is extensive documentation on 
setting up cameras using the Mass Storage protocol, and the best of it 
(IMHO) starts at:

http://www.teaser.fr/~hfiguiere/linux/digicam.html

The list of supported cameras by gphoto2 can be found at:

http://www.gphoto.org/proj/libgphoto2/support.php

If you run KDE at all, I'd suggest ising digiKam.  Its a nice gui front 
to gphoto2.  I haven't looked too deeply but I assume there will be 
other software for Gnome.

As far as your comments go about the camera being recognised as an scsi 
disk through USB Mass Storage is concerned, this is correct.  Here is a 
quote from the page at 
http://www.teaser.fr/~hfiguiere/linux/digicam.html:

"USB Cameras

Nowadays USB cameras are the most common. Since every USB device is 
identified by vendor and product ID combination, it can be detected 
easily on the bus. Usually one can safely assume that devices with 
similar USB IDs are identical, from the USB protocol point of view, but 
we'll see later that there are notable exceptions.

For the protocol, there are 2 USB standardized protocols that digital 
camera uses: USB Mass Storage and PTP (aka Still Image Device). If a 
camera doesn't use one of these two protocols, it surely uses a 
proprietary protocol, and this is were things get uneasy: most 
manufacturers don't disclose these protocols for various reasons. So 
reverse engineering has to be performed.

USB Mass Storage

USB Mass Storage is the protocol used by hard drives and removable disks 
devices over USB. This is basically SCSI over USB. Linux 2.4.x and the 
*BSD systems handle it by default in their USB stack. All you need is 
to mount the correct device to the mount point of your choice."

HTH
-- 

Graham
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 243 bytes
Desc: not available
URL: <https://lists.ubuntu.com/archives/ubuntu-users/attachments/20050702/39e9bf4e/attachment.sig>