2010/5/19 Andreas Jellinghaus <[email protected]>:
> Hi,

Hello Andreas,

> can you give me some advice:
> which card readers for pcsc-lite have serial numbers?
> with "lsusb -v" I find this:
> Bus 004 Device 012: ID 04e6:5115 SCM Microsystems, Inc. SCR335 SmartCard
> Reader
>
> ...
>  idVendor           0x04e6 SCM Microsystems, Inc.
>  idProduct          0x5115 SCR335 SmartCard Reader
>  bcdDevice            5.14
>  iManufacturer           1 SCM Microsystems Inc.
>  iProduct                2 SCR33x USB Smart Card Reader
>  iSerial                 5 21120443106689
>
>
> hurray, a reader with a serial number. I'm told by some people that
> many vendors have no serial number in their readers or only a dummy
> value.
>
> So can anyone suggest even more reader with serial numbers?
> Of course I had a look at Ludovics ccid driver with the
> reader/ directory, but all those txt files do not include
> "iSerial" field.

I would say many SCM readers have a serial number.

> bonus if you have the same reader twice and can check if the serial
> number is different. :)

Sorry. I don't think I have two identical readers. So I can't tell if
the serial numbers are different.

> And the second part of my question is: can you use pcsc API with
> pcsc-lite and some driver (ccid prefered of course) to query all
> readers including the serial number, so you don't have to rely
> on usb plug-in order?

Under pcsc-lite the reader name contains the serial number (if
present) and is something like:
"READER FOO (serial) 00 00"

> maybe there is even a portable way that works on windows too?

I don't think so.
And pcsc-lite on Mac OS X does not show the serial number.

PCSC defines a SCARD_ATTR_VENDOR_IFD_SERIAL_NO but it is the serial
number of the IFD (driver) not the device.

I have added the serial number in the PC/SC reader name to be able to
differentiate two identical readers. Just the need you have now.

Bye,

-- 
 Dr. Ludovic Rousseau

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