Le vendredi 13 mai 2011 à 14:20 +0200, Ludovic Rousseau a écrit :
> The problem is that the Feitian reader is "bogus" and announces rates
> but only ONE rate is announced: 10752 bauds
> See http://pcsclite.alioth.debian.org/ccid/readers/Feitian_SCR310.txt
>
> One easy solution is to fix the reader firmware to either report no
> rate at all or report all the supported rates.
The reader is not bugus, it reports:
dwDataRate: 10752 bps
dwMaxDataRate: 600000 bps
bNumDataRatesSupported: 0 (will use whatever is returned)
Support 10752 bps
This is quite explicit that the minimum rate is 10752 and maximum rate
is 600000. Furthermore, dwFeatures indicates autobaud features.
dwFeatures: 0x00010230
....10 Automatic ICC clock frequency change according to parameters
....20 Automatic baud rate change according to frequency and Fi, Di
params
..02.. NAD value other than 00 accepted (T=1)
So it makes sense that libccid is a little bit less picky about rates.
Windows 7 knows how to handle this kind of situation.
My patch handles this scenario:
Check whether the rate is reported.
If not, look at dwFeatures.
What's wrong with that?
Kind regards,
--
Jean-Michel Pouré - Gooze - http://www.gooze.eu
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