11. PCMCIA

11.1 Support

PCMCIA support is currently included in the kernel, but it's better supported by the kernel modules located at http://pcmcia-cs.sourceforge.net

11.2 Device Management

1. cardmgr
   • Monitors PCMCIA sockets for card insertion and removal.
   • Looks up cards in database when inserted and loads appropriate kernel module.
   • Can execute preconfigured commands upon insertion or removal.
   • Unloads kernel module upon removal.

2. cardctl
   • Monitor and control PCMCIA sockets.
   • Non-root users can only view information about sockets.
   • Commands:
     1. status - Display socket status.
     2. config - Display socket configuration (includes power settings, IRQs, ioports).
     3. ident - Display card identification.
     4. suspend - Shutdown and disable power for socket.
     5. resume - Restore power to socket and re-configure for use.
     6. reset - Send reset signal to device.
     7. eject - Notifies all drivers that this card will be ejected and then cuts power.
     8. insert - Notify all drivers that a card has just been inserted.
     9. scheme - Display scheme if none is specified, otherwise reconfigure PCMCIA to the new scheme specified.

3. PCMCIA drivers
   • Automatically loads devices and configures ioports to nonconflicting values.
   • Can specify ioports not to use in /etc/pcmcia/config.opts
   • Can view loaded cards in /var/lib/pcmcia/stab.