Confused with scanner and libusb

[gaetan yavorsky]

Hi,
Moving from FC1 to FC3
Prior to FC3, I had a script like :
res=`/usr/bin/scanimage --mode Color -d epson:/dev/usb/scanner0 --
resolution 100 |/usr/bin/pnmtojpeg >$1`

Now, scanimage -L shows :device `epson:libusb:002:012' is a Epson
StylusScan2500 flatbed scanner

But the problem is that the libusb:xxx:yyy is changing each time the
scanner is plugged in.
Is there any way to make a symlink to something like /dev/scanner, to
use always the same device ?

Thanks.
Gaetan Yavorsky

[John Cox]

On Sun, 02 Jan 2005 13:06:23 +0100, gaetan yavorsky
 wrote:
> Hi,
> Moving from FC1 to FC3
> Prior to FC3, I had a script like :
> res=`/usr/bin/scanimage --mode Color -d epson:/dev/usb/scanner0 --
> resolution 100 |/usr/bin/pnmtojpeg >$1`
>
> Now, scanimage -L shows :device `epson:libusb:002:012' is a Epson
> StylusScan2500 flatbed scanner
>
> But the problem is that the libusb:xxx:yyy is changing each time the
> scanner is plugged in.
> Is there any way to make a symlink to something like /dev/scanner, to
> use always the same device ?
>
> Thanks.
> Gaetan Yavorsky

Take a look at this thread.  
http://www.fedoraforum.org/forum/showthread.php?t=26744

[John Cox]

>  wrote:
> > Hi,
> > Moving from FC1 to FC3
> > Prior to FC3, I had a script like :
> > res=`/usr/bin/scanimage --mode Color -d epson:/dev/usb/scanner0 --
> > resolution 100 |/usr/bin/pnmtojpeg >$1`
> >
> > Now, scanimage -L shows :device `epson:libusb:002:012' is a Epson
> > StylusScan2500 flatbed scanner
> >
> > But the problem is that the libusb:xxx:yyy is changing each time the
> > scanner is plugged in.
> > Is there any way to make a symlink to something like /dev/scanner, to
> > use always the same device ?
> >
> > Thanks.
> > Gaetan Yavorsky

Take a look at this thread.

http://www.fedoraforum.org/forum/showthread.php?t=26744

[gaetan yavorsky]

Thanks for the link.
Up to now, iscan is working whith my scanner.
(but scanimage & xsane already did !)
My problem is to know the scanner device in a shell script.
For example, what is the device I have to specify to scanimage in my
script.
Before, I simply specified /dev/usb/scanner0 and it was working even I
unplugged & plugged the scanner.
Now, the device detected by scanimage -L is never the same.

Le dimanche 02 janvier 2005 à 07:18 -0500, John Cox a écrit :
> >  wrote:
> > > Hi,
> > > Moving from FC1 to FC3
> > > Prior to FC3, I had a script like :
> > > res=`/usr/bin/scanimage --mode Color -d epson:/dev/usb/scanner0 --
> > > resolution 100 |/usr/bin/pnmtojpeg >$1`
> > >
> > > Now, scanimage -L shows :device `epson:libusb:002:012' is a Epson
> > > StylusScan2500 flatbed scanner
> > >
> > > But the problem is that the libusb:xxx:yyy is changing each time the
> > > scanner is plugged in.
> > > Is there any way to make a symlink to something like /dev/scanner, to
> > > use always the same device ?
> > >
> > > Thanks.
> > > Gaetan Yavorsky
>
> Take a look at this thread.
>
> http://www.fedoraforum.org/forum/showthread.php?t=26744