[KimDaBa] Import from camera

Shawn Willden shawn-kimdaba at willden.org
Sat Oct 30 16:41:43 BST 2004

Hash: SHA1

On Friday 29 October 2004 04:51 pm, Robert L Krawitz wrote:
> I'd like to try to figure it out using a card reader rather than the
> camera, if that's possible.

It should be.  One complication is that to keep the scripts simple you'll 
probably have to make sure you always put the card in the reader before 
attaching the reader to the computer.  That's because there aren't any 
hotplug events for card insertion.

When you plug in your CF reader, hotplug will load up the appropriate driver 
(almost certainly usb-storage) and then look in /etc/hotplug/usb for an 
executable file with the same name.  If it finds one, it will execute it.  So 
that's where you need to hook in.  That script will need to mount the CF file 
system ('mount -t vfat /dev/sda1 /mnt/disk' or something similar), figure out 
which camera the card is from and then do the copying (and whatever else you 
want to do).

How to figure out which camera the card is from?  Well, you could use jhead or 
metacam to analyze the EXIF data (metacam might be better, as I can't find a 
way to get jhead to read the "Owner Name" field, and I like the idea of using 
that more than the camera model).  You could just place an empty file in the 
root directory of each CF card with a name that identifies which camera the 
card goes with.  You could look at details of file names or file paths...

Probably the nicest way is to use the EXIF data, because then you could swap 
cards around between cameras at will, and if you processed each image 
individually your script would still work just fine even if the card 
contained some images from one camera and some from another.

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