RE: targetting a specific camera when using libgphoto

Yeah, that don't work:

I have a sony camera plugged in my linux box.  /proc/bus/usb/001/044

When I do gphoto2 --camera "Sony Digital Still Camera" --port "usb:001,044"
--shell

I get:
The port you specified ('usb:001,044') can not be found.  Please specify one
of the ports.....

Pat

Why not add an api gp_init_camera_from_path?  Libusb supports opening a
device path!

pat

-----Original Message-----
From: Marcus Meissner [mailto:marcus@xxxxxxxxxxxxxx] 
Sent: Tuesday, February 14, 2006 5:11 PM
To: Patrick Laplante
Cc: gphoto-devel@xxxxxxxxxxxxxxxxxxxxx
Subject: Re: [gphoto-devel] targetting a specific camera when using
libgphoto

On Fri, Feb 10, 2006 at 10:33:59AM -0500, Patrick Laplante wrote:
> All,
> 
>  
> 
> Is it possible to manually specify the camera that I want to access in the
> libgphoto API?
> 
>  
> 
> Here is what I am doing.  I am working on a small downloader that will, on
> camera connection, get started and will automatically suck all the images
> out of the camera and put them somewhere on my disk.  (no user interaction
> needed).
> 
>  
> 
> The trick is that I could be plugging 5 cameras simultaneously so 5
> instances of that downloader will get started (with the camera DEVPATH as
an
> argument).
> 
>  
> 
> So is it possible via the libgphoto API to target a specific camera (like
> passing the DEVPATH as an argument)

Yes. When multiple cameras of the same type are connected, you will
get "usb:XXX,YYY" ports, you can then do

        gphoto2 --camera "Name" --port "usb:XXX,YYY"  ... more options

The XXX,YYY is from /proc/bus/usb/XXX/YYY , so is easily parseable
by a shellscript.

Ciao, Marcus



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