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PCCARDD(8)              FreeBSD System Manager's Manual             PCCARDD(8)

     pccardd - PC-CARD (PCMCIA) management daemon

     pccardd [-d] [-v] [-z] [-i IRQ] [-I] [-f configfile]

     Pccardd is normally started at boot time, and manages the insertion and
     removal of PC-CARD cards.

     When started, pccardd will read the configuration file (default name
     /etc/defaults/pccard.conf which includes /etc/pccard.conf as the user
     configuration file) and scans the available PC-CARD slots for cards.
     Pccardd then waits for card events, such as the insertion of a new card
     or the removal of a card.

     When a card is inserted, the following actions are taken:

     1.   The kernel driver detects the card insertion and applies power to
          the card.

     2.   Pccardd reads the CIS data from the attribute memory of the card,
          and uses the manufacturer name and card version to match the card
          description in the configuration file.

     3.   Once matched, a driver is allocated.

     4.   Once a free driver and device instance is located, pccardd will (if
          required) allocate resources such as an ISA memory block and
          Input/Output ports from a common pool.

     5.   The PC-CARD slot is configured with the I/O and memory contexts
          allocated, and the kernel driver is attached to this card.

     6.   If the attach succeeds, then specific shell commands may be executed
          to configure the device, such as ifconfig(8) to set up a network
          interface.  Separate commands may be specified for each card, driver
          or device, and are executed in that order.

     When pccardd detects that a card has been removed, the following sequence

     1.   The shell commands associated with card removal are executed.  These
          are intended to reset any device associated with the removed card.
          Separate commands may exist for card, driver and device instances.

     2.   The PC-CARD slot resources are freed.

     Once a card/driver instance is configured, the resources bound to that
     instance are remembered, and if the card is removed and reinserted, the
     same driver is allocated.  The primary reason is that once a driver is
     associated with a card, the driver's probe() routine has been called, and
     this usually causes driver specific data areas to be initialized with the
     I/O ports or memory resources allocated to the card.  Most drivers are
     not designed to be disassociated from the hardware and then reassociated
     with different parameters.  This will change significantly when loadable
     kernel modules are supported.

     SIGHUP causes pccardd to reload the configuration files.

     The start options understood by pccardd are:

     -d      Do not run as a daemon, but run in the foreground and display
             error messages.

     -v      After reading the configuration file, print out a summary of it.

     -z      Delays running as a daemon until after the cards have been probed
             and attached.

     -I      Don't get a list of free IRQs from kernel.

     -i IRQ  Configures an available IRQ.  It overrides the "irq" line in
             /etc/defaults/pccard.conf and /etc/pccard.conf.

     -f configfile
             Specifies a different configuration file to be used in placed of
             the default file /etc/defaults/pccard.conf.  The file format is
             detailed in pccard.conf(5), and lists the PC-CARD cards
             recognized by pccardd, and the kernel drivers and devices that
             are used to interface to the card.

     /etc/defaults/pccard.conf  default configuration file
     /etc/pccard.conf           user configuration file
     /var/run/       process id of the currently running pccardd

     pccard.conf(5), ifconfig(8)

     Developed by Andrew McRae <>.

     Pccardd can set up card parameters, but cannot guarantee that particular
     drivers can work with the card.

     Removing cards may cause problems if system resources have been
     associated with the card, such as network mounted filesystems.

FreeBSD 11.0-PRERELEASE        November 1, 1994        FreeBSD 11.0-PRERELEASE


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