card-backend-pcsc is used at run time in 9 crates (of which 1 optionally). It is a direct run-time dependency in 6 crates. It's used only as a dev dependency in 3 crates.

Depender (with downloads and own rev deps) card-backend-pcsc version
800 openpgp-card-ssh-agent ^0.5
140 openpgp-card-tool-git ^0.5
110 1 sequoia-keystore-openpgp-card ^0.5
age-plugin-openpgp-card ^0.5.0
yubikey-management ^0.5
openpgp-card-tools ^0.5
93K 2 ssh-agent-lib dev ^0.5.0
170 2 openpgp-card-rpgp dev ^0.5
2 openpgp-card-sequoia dev ^0.5