Apparently, at
  least with the Cyberflex, the card responds with its maximum speed and
  the Gemplus driver interprets this as the requested speed.

If so, that would be a bug in the reader driver.  The card remains at
default timings until the reader sends it a PPS.

By the way, the Cyberflex card actually will run at higher speeds than the
atr would normally indicate.  You can take advantage of the higher speeds by
sending the card a ChangeJavaATR with different timings.
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Linux Smart Card Developers - M.U.S.C.L.E.
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