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

NAME
     pccardd -- PC-CARD (PCMCIA) management daemon

SYNOPSIS
     pccardd [-d] [-v] [-x] [-z] [-i IRQ] [-I] [-f configfile] [-s socket]

DESCRIPTION
     The pccardd utility 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.  The
     pccardd utility 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.   The pccardd utility 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
     occurs:

     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 reasons are mostly historical.

     SIGHUP causes pccardd to reload the configuration files.

     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.

     -x      Exits immediately after the cards have been probed and attached.
             This is primarily useful in embedded applications where it is
             desirable to use pccardd to start PC-CARD devices but prohibitive
             memory-wise to leave the pccardd process running.

     -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 recog-
             nized by pccardd, and the kernel drivers and devices that are
             used to interface to the card.

     -s socket
             Specifies a path to a control socket.  The default is
             /var/tmp/.pccardd.

FILES
     /etc/defaults/pccard.conf  default configuration file
     /etc/pccard.conf           user configuration file
     /var/tmp/.pccardd          default control socket
     /var/run/pccardd.pid       process id of the currently running pccardd

SEE ALSO
     pccard.conf(5), ifconfig(8)

AUTHORS
     Developed by Andrew McRae <andrew@mega.com.au>.

BUGS
     The pccardd utility 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 associ-
     ated with the card, such as network mounted file systems.

FreeBSD 4.10                   November 1, 1994                   FreeBSD 4.10

NAME | SYNOPSIS | DESCRIPTION | FILES | SEE ALSO | AUTHORS | BUGS

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