On Mon, 2 Oct 2006, René Kjellerup wrote:
>
> Hi everyone,
>
> The documentation on this seems to be purely reference
> for programmers who have used them before...
>
> How do one read/write to a usb device (scanner)?
> Will it return data on invalid commands, and where?
> And so on...
depends on the device. some will just lock hard and require
a power cycle.
your best bet is to get it installed on windows with its
native driver,
and then use benoit's sniffusb to get a log of some simple
operations. you
will likely want to clean up those logs for readability,
there are quite a
few progs for that running around. i personally like
'spike4.pl' 
>
> Could I see a general piece of code that I could use
> as a template?
generally you want to write a small libusb prog that is
outside of sane
first. there are a couple examples that come with libusb.
let us know some
more about the device, and we can give better pointers...
allan
>
> Best wishes
> René Kjellerup
>
>
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