[sane-devel] genesys:libusb:.... changes while scanning (sane)

[n d]

Hi all.
I'm using Mint 16, sane 1.0.24 and Canon Lide 700f scanners connected by a
hub.
When running a script that iterates over all the scanners connected to the
hub (using the genesys:libusb:.... names hard coded) sometime
the names (unix files...) are being changed while running, what cause the
script to run unsuccessfully.
For example genesys:libusb:001:008 becomes genesys:libusb:001:009

a. Is there any way to give each scanners a persistent (and informative)
name?
b. does anyone have some idea why the usb numbering changes while running
the script? (tried to run the commands manually one by one, no change in
scanners name for this case)

tnx

N
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