The socket state includes a row of abbreviated state flags. The CD flag indicates that a card is detected in that socket. The Vcc flag indicates that the socket is powered up. The Vpp flag indicates that the programming power supply is active. The WP flag indicates that the card is write protected.
Below the socket status data is a log of card status change events. The following events are logged: card insertion and removal, user insert and eject requests, suspend and resume, and socket resets.
The reset button below the socket displays sends a SIGHUP signal to cardmgr, causing all sockets to be reinitialized from scratch.
Cardinfo is setuid root so that it can create temporary device files for accessing the PCMCIA sockets. An ordinary user will not be able to access any of the socket control functions.