Card readers supported by GPG's internal drivers

Tony Whitmore tony at
Tue Jul 11 20:16:02 CEST 2006

Hi all,

I've been playing around with an OpenGPG smartcard and card reader for
the last few days, and have a few questions.

Is there a compatibility list of drivers supported by GPG's internal
card reader driver, other than the relevant part of the HOWTO? Do
readers have to support a certain standard to be supported by GPG
directly, or is support for each reader implemented individually?

I have an ACS ACR30U reader[1] and have followed the HOWTOs instructions
on setting up with udev. However, it doesn't seem to work with GPG directly:

$ gpg --card-status
gpg: pcsc_establish_context failed: no service (0x8010001d)
gpg: card reader not available
gpg: OpenPGP card not available: general error

The reader does support PC/SC though, so I plan to try using PC/SC to
access the card.

BTW, the link to the gnupg-ccid file (NOT gnupg-ccid.rules) on the HOWTO
links back to the HOWTO, not the file:

Thanks in advance for any help,

Tony Whitmore


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