$ gpg --version
gpg (GnuPG) 2.3.1
libgcrypt 1.9.3
$ gpg --debug ipc --card-status
gpg: reading options from '/Users/user/.gnupg/gpg.conf'
gpg: reading options from '[cmdline]'
gpg: enabled debug flags: ipc
gpg: DBG: chan_3 <- OK Pleased to meet you, process 15218
gpg: DBG: connection to the gpg-agent established
gpg: DBG: chan_3 -> RESET
gpg: DBG: chan_3 <- OK
gpg: DBG: chan_3 -> OPTION ttyname=/dev/ttys007
gpg: DBG: chan_3 <- OK
gpg: DBG: chan_3 -> OPTION ttytype=xterm-256color
gpg: DBG: chan_3 <- OK
gpg: DBG: chan_3 -> OPTION lc-ctype=en_US.UTF-8
gpg: DBG: chan_3 <- OK
gpg: DBG: chan_3 -> OPTION lc-messages=en_US.UTF-8
gpg: DBG: chan_3 <- OK
gpg: DBG: chan_3 -> GETINFO version
gpg: DBG: chan_3 <- D 2.3.1
gpg: DBG: chan_3 <- OK
gpg: DBG: chan_3 -> OPTION allow-pinentry-notify
gpg: DBG: chan_3 <- OK
gpg: DBG: chan_3 -> OPTION agent-awareness=2.1.0
gpg: DBG: chan_3 <- OK
gpg: DBG: chan_3 -> SCD GETINFO version
gpg: DBG: chan_3 <- D 2.3.1
gpg: DBG: chan_3 <- OK
gpg: DBG: chan_3 -> SCD SERIALNO
gpg: DBG: chan_3 <- ERR 100696144 Operation not supported by device <SCD>
gpg: selecting card failed: Operation not supported by device
gpg: OpenPGP card not available: Operation not supported by device
gpg: secmem usage: 0/32768 bytes in 0 blocks