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Langue: en

Version: 385840 (fedora - 01/12/10)

Section: 8 (Commandes administrateur)


pcscd - PC/SC Smart Card Daemon


pcscd [options]


-a, --apdu
log APDUs and SW using the debug method (see --debug).
-c, --config file
Specifies the file file as an alternate location for @sysconfdir_exp@/reader.conf.
-f, --foreground
Runs pcscd in the foreground and sends log messages to stderr instead of syslog(3).
-d, --debug
use the lowest log level. Any log message of this level or above will be sent to stderr or syslog(3) depending on the use of --foreground.
use info log level. This is the default log level.
use error log level.
use critical log level.

The log levels are ordered as: debug < info < error < critical. Use a log level l will log this level and all the levels above it.

-h, --help
Displays information about the pcscd command line
-v, --version
Displays the program version number
-H, --hotplug
Ask pcscd to rescan the USB buses for added or removed readers and re-read the @sysconfdir_exp@/reader.conf file to detect added or removed non-USB readers (serial or PCMCIA).


pcscd is the daemon program for pcsc-lite and the MuscleCard framework. It is a resource manager that coordinates communications with smart card readers and smart cards and cryptographic tokens that are connected to the system.

pcscd is normally started at boot time from @sysconfdir_exp@/init.d/pcscd. It allows applications to access smart cards and readers without knowing details of the card or reader.

pcscd coordinates the loading of drivers for card readers.

The purpose of pcsc-lite is to provide a cross compatible API (called winscard) for migrating Windows based PC/SC applications to Unix.

At startup, pcscd loads the smart card reader drivers specified in the @sysconfdir_exp@/reader.conf file (or specified using --config file).


Smart card reader drivers are placed in the /usr/lib64/pcsc/drivers directory. Each driver is simply an .so file. pcscd locates the driver using the @sysconfdir_exp@/reader.conf file. See the reader.conf(5) manual page for more information. Drivers are available at


USB smart card reader drivers are located in /usr/lib64/pcsc/drivers directory as a bundle. You shall not add a USB driver in @sysconfdir_exp@/reader.conf file.


@sysconfdir_exp@/reader.conf : Reader configuration file

@sysconfdir_exp@/init.d/pcscd : pcscd startup script

/var/run/ : process id of the running pcscd

/usr/lib64/pcsc/drivers : directory containing bundles for USB drivers


bundleTool(8), reader.conf(5), syslog(3)


David Corcoran <> and Ludovic Rousseau <>
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