[Pcsclite-muscle] Issue when plugging yubikey after pcscd has started

[Laurent Bigonville]

Hello,

I've an issue that when I'm plugging the my yubikey 5 while pcscd is 
already running, gpg/scdaemon cannot communicate with it. If I'm 
plugging it and then I'm starting the daemon, it works fine. I'm 
suspecting that it might be happening with all smartcard reader plugged 
after the daemon has started.

I'm running debian unstable (pcscd: 2.0.1-1 - libccid 1.5.5-1 - gpg 
2.2.40-1.1+b1). I uninstalled opensc completely to avoid interferences.

$ sudo pcscd --version
pcsc-lite version 2.0.1.
Copyright (C) 1999-2002 by David Corcoran<corcoran at musclecard.com>.
Copyright (C) 2001-2022 by Ludovic Rousseau<ludovic.rousseau at free.fr>.
Copyright (C) 2003-2004 by Damien Sauveron<sauveron at labri.fr>.
Report bugs to<pcsclite-muscle at lists.infradead.org>.
Enabled features: Linux x86_64-pc-linux-gnu libsystemd serial usb libudev polkit usbdropdir=/usr/lib/pcsc/drivers ipcdir=/run/pcscd filter configdir=/etc/reader.conf.d
MAX_READERNAME: 128, PCSCLITE_MAX_READERS_CONTEXTS: 16

scdaemon is configured as follow:

$ cat .gnupg/scdaemon.conf
pcsc-driver /usr/lib/x86_64-linux-gnu/libpcsclite.so.1
card-timeout 5
disable-ccid
pcsc-shared

$ LC_ALL=C gpg --card-status
gpg: selecting card failed: No such device
gpg: OpenPGP card not available: No such device

I've attached the logs generated with the following procedure:

1. Stop scdaemon and pcscd
2. Plug the yubikey (only for the plugged_before log file)
3. Start pcscd
4. Run gpg --card-status
5. Unplug the yubikey
6. Ctrl-C the daemon

Any idea what's happening here?

Kind regards,

Laurent Bigonville
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