Hi all,
Using (Fedora 31) a yubikey for both storing GPg-keys and ans SSL-
certificate seems to create a conflict between pcscd and scdaemon.
Using gpg-agent is most usefull, it will avoid asking for the
key/Yubikey password all the time; however: it will start scdaemon and
both pcscd and scdaemon try to access the smartcard reader exclusively:
Depending on which is (re)started first:
Jan 28 12:01:25 laptop-winfried.blabla.bla pcscd[9786]: 00033944
winscard.c:286:SCardConnect() Error Reader Exclusive
jan 28 12:01:25 laptop-winfried.blabla.bla pcscd[9786]: 00034140
winscard.c:286:SCardConnect() Error Reader Exclusive
jan 28 12:01:25 laptop-winfried.blabla.bla pcscd[9786]: 00033895
winscard.c:286:SCardConnect() Error Reader Exclusive
jan 28 12:01:25 laptop-winfried.blabla.bla pcscd[9786]: 00034205
winscard.c:286:SCardConnect() Error Reader Exclusive
jan 28 12:01:25 laptop-winfried.blabla.bla pcscd[9786]: 00032693
winscard.c:286:SCardConnect() Error Reader Exclusive
jan 28 12:01:25 laptop-winfried.blabla.bla pcscd[9786]: 00031293
winscard.c:286:SCardConnect() Error Reader Exclusive
Or when pcscd, gpg is not abaile to communicate with the card reader
resulting in:
gpg2 --card-status
gpg: selecting card failed: No such device
gpg: OpenPGP card not available: No such device
Most topics "on the internet" mention to disable pcscd when using gpg
or
in $HOME/.gnupg/scdaemon.conf using "disable-ccid"
pcsc-driver /usr/lib64/libpcsclite.so.1
disable-ccid
The latter however just won't work; gpg will not be able to access the
smartcard.
FYI; is seems it is not an "exclusive" Yubikey problem. Besides
yubikey, I also use a gnuPG (OpenPGP) Smartcard. different card,
different card reader same problem...
Hence: any solution for pcscd an scdaemon to work together....?
Winfried