On Fri, 2007-12-21 at 14:49 +0100, Ludovic Rousseau wrote:
> On Dec 18, 2007 10:22 PM, Sebastien Chassot <[EMAIL PROTECTED]> wrote:
> > On Tue, 2007-12-18 at 21:45 +0100, Ludovic Rousseau wrote:
> > > And with which reader?
> > >
> > It's a SCR335 (SCM Microsystems Inc. SCR33x USB Smart Card Reader, rev
> > 2.00/5.18, addr 2)
> >
> > I choose this model to avoid any difficulties ;)
>
> I don't remember having a time out problem with this reader.
>
> The driver is correctly managing wtx requests (time extension) from
> the card. And then the reader decides to report a dead card after some
> time.
>
> Maybe the card is too long to respond.
> Maybe the reader is too quick to declare the card dead.
>
Could downgrade the firmware have any effect ?
> If you can you may try with a reader from another manufacturer.
>
next time maybe?
> It MAY be possible to solve the problem by changing the BWI (block
> waiting interval) configured by the driver.
> Edit the file ccid/src/ifdhandler.c like this:
> Index: ccid/src/ifdhandler.c
> ===================================================================
> --- ccid/src/ifdhandler.c (revision 2714)
> +++ ccid/src/ifdhandler.c (working copy)
> @@ -681,7 +681,8 @@ EXTERNAL RESPONSECODE IFDHSetProtocolPar
> {
> DEBUG_COMM3("BWI/CWI (TB%d) present: 0x%02X",
> i+1,
> atr.ib[i][ATR_INTERFACE_BYTE_TB].value);
> - param[3] =
> atr.ib[i][ATR_INTERFACE_BYTE_TB].value;
> +// param[3] =
> atr.ib[i][ATR_INTERFACE_BYTE_TB].value;
> + param[3] = 0x9F;
>
> /* only the first TBi (i>2) must be used */
> break;
>
> This will change the value of BWI from 4 to 9 (maximal value) and the
> CWI value from 5 to F.
>
It work slightly better ;) but I still have some failure...
I don't understand where it's coming from. It's a timeout in
reading/writing one block not the globale generation's time, isn't it ?
So it could happens at any times in the generation process ?
Anyway, may I expect other reading/writing problems in the future ? if
not I'm going to use it like that.
Thanks
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