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Harald Welte laforge at gnumonks.orgI think the best way to analyze this is to understand the exact voltage,
clock rate and Fi/Di values your card is operating on on the working
reader(s). Most likely at least one of the parameters is different on
the non-working readers.
You should be able to figure all the related values out if you talk
CCID directly to the USB device, or extend / "hack up" the ccid driver
you're using. Alternatively, an oscilloscopse should also be able to
tell you related information.
Regards,
Harald
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- Harald Welte <laforge at gnumonks.org> http://laforge.gnumonks.org/
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