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Re: [Muscle] Problems with some CCID readers (ACS and SCM Micro)

From: Peter Tomlinson (pwtiosis.co.uk)
Date: Fri May 28 2004 - 09:18:32 CDT

A colleague with knowledge of the use of USB interfaces tells me that he has
heard that this problem has tripped up other implementors of USB products,
so its not unique to smart card readers.

Peter

----- Original Message -----
From: "Damien Sauveron" <sauveronlabri.fr>
To: "MUSCLE" <musclelists.musclecard.com>
Sent: Thursday, May 27, 2004 11:15 PM
Subject: Re: [Muscle] Problems with some CCID readers (ACS and SCM Micro)

> Hello,
>
> Now we know that the bug is located on reader side at USB stack level and
not in
> Linux and libusb.
>
> Also we have closed the bug reports [1], [2], [3] and we have done bug
reports
> to the manufacturers involved.
>
> > Damien Sauveron discovered a bug at the USB level with some CCID
> > readers. The concerned readers so far are:
> >
> > - Advanced Card Systems ACR 38
> > - SCM Micro SCR 335
> > - SCM Micro SCR 331
> >
> > Maybe some other readers have the same problem but I don't have them to
> > perform tests.
> Note that SPR532 is also concerned.
>
> Solution:
> ==========
> To solve the bug for the SCR331 upgrade the firmware with version 5.x.
> I have tested it successfully with the firmware 5.13.
>
> A new firmware for SCR335 is planed in July and a new for SPR532 is planed
in
> August.
> We hope they will correct this bug.
>
> For the ACR 38, send your request to Advanced Card Systems.
>
> > I will move the three readers from the "Supported" to the "Unsupported
> > or partly supported" list in the CCID driver page until we find a
> > solution.
> Yes "partly supported" is a good solution.
>
> > [1]
>
https://alioth.debian.org/tracker/index.php?func=detail&aid=300429&group_id=1225&atid=410085
> > [2]
http://marc.theaimsgroup.com/?l=linux-usb-users&m=108422626901486&w=2
> > [3] http://bugme.osdl.org/show_bug.cgi?id=2765
>
> Regards,
> --
> Damien Sauveron
>
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>

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