[sane-devel] USB probing

[Major A]

Hi,

I need some help from SANE developers:

Given a device file, how can I determine whether that is a generic
SCSI or a USB scanner device? It seems that when I try to open a USB
device file as a SCSI device and probe with INQUIRY, a USB timeout
will occur. I don't think using a generic SCSI device file with some
random USB scanner protocol is a good idea either.

So, is it possible to decide what interface the file stands for, or do
I have to judge from the filename (example: "usb:/dev/scanner")?

Thanks,

  Andras

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Major Andras
    e-mail: andras at users.sourceforge.net
    www:    http://andras.webhop.org/
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