Thanks for your answers!

In my case 1 smart card, USB token would use/store just 1 slot/1 keypair: 1 
keypair is needed for each user stored on separate devices. This means, I have 
to maximize the number of devices, not the slots of the devices. USB controller 
gives an upper limitation for that, but I don't know whether CSPs have other 
e.g. addressing limitations.

Aron



-----Original Message-----
From: opensc-devel-boun...@lists.opensc-project.org 
[mailto:opensc-devel-boun...@lists.opensc-project.org] On Behalf Of NdK
Sent: Wednesday, March 21, 2012 3:35 PM
To: opensc-devel@lists.opensc-project.org
Subject: Re: [opensc-devel] Managing devices simultaneously

Il 21/03/2012 11:27, Szabó Áron ha scritto:

> What is the maximum number (if any exists at this level) of regular smart 
> cards, USB tokens (and keys) that can be used and managed by OpenSC in the 
> same environment (USB controller supports up to 127 devices, up to seven 
> tiers, including the root tier and five non-root hubs)?
IIUC, each "PIN" uses a slot. So, for example, on a single Aventra card you 
could need 14 slots!

BYtE,
 Diego.

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