2 .\" Copyright (c) 2002 M. Warner Losh <imp@FreeBSD.org>
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31 .Nd PC Card bus driver
37 driver implements the PC Card bus.
40 driver supports all PC Card bridges in the system.
42 The driver supports the following tunable parameters, which may be
48 .Bl -tag -width ".Cm hw.pccard.cis_debug" -compact
49 .It Cm hw.pccard.debug
50 Non-zero values cause more verbose information to be printed when a
51 16-bit PC Card is inserted or removed.
52 .It Cm hw.pccard.cis_debug
53 Non-zero value causes the CIS parsing of the 16-bit PC Card to be much
54 more verbose and include a complete CIS dump.
57 .Bl -tag -width ".Pa /dev/pccard0.cis" -compact
58 .It Pa /dev/pccard0.cis
59 This exclusive-use device will report all the CIS chains present in a
60 PC Card, if a 16-bit PC Card is inserted in the slot.
61 Only one user at a time may access the CIS.
62 The CIS is presented as the relevant byte stream from the PC Card.
63 For CIS tuples in Attribute Memory (the default), only the even
64 locations are presented (the ODD locations are undefined per the
66 For CIS tuples in Common Memory, every byte is presented to the user.
67 Decoding of the CIS tuples is done via a userland program.
68 All tuples are presented to the user.
76 .%T "PC Card Standard, Release 8"