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     pccard — PC Card bus driver


     device pccard


     The pccard driver implements the PC Card bus.  The pccard driver supports
     all PC Card bridges in the system.


     The driver supports the following tunable parameters, which may be added
     to /boot/loader.conf or set via the sysctl(8) command:
     hw.pccard.debug      Non-zero values cause more verbose information to be
                          printed when a 16-bit PC Card is inserted or
     hw.pccard.cis_debug  Non-zero value causes the CIS parsing of the 16-bit
                          PC Card to be much more verbose and include a
                          complete CIS dump.


     /dev/pccard0.cis  This exclusive-use device will report all the CIS
                       chains present in a PC Card, if a 16-bit PC Card is
                       inserted in the slot.  Only one user at a time may
                       access the CIS.  The CIS is presented as the relevant
                       byte stream from the PC Card.  For CIS tuples in
                       Attribute Memory (the default), only the even locations
                       are presented (the ODD locations are undefined per the
                       standard).  For CIS tuples in Common Memory, every byte
                       is presented to the user.  Decoding of the CIS tuples
                       is done via a userland program.  All tuples are
                       presented to the user.


     cardbus(4), pccbb(4)

     PC Card Standard, Release 8.