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setpci(8)			       Linux PCI Utilities				setpci(8)

NAME
       setpci - configure PCI devices

SYNOPSIS
       setpci [options] devices operations...

DESCRIPTION
       setpci is a utility for querying and configuring PCI devices.

       To  make  use of all the features of this program, you need to have Linux kernel 2.1.82 or
       newer which supports the /proc/bus/pci interface. With older kernels,  the  PCI	utilities
       have  to  use  direct  hardware access which is available only to root and it suffers from
       numerous race conditions and other problems.

       All numbers are entered in hexadecimal notation.

OPTIONS
       -v     Tells setpci to be verbose and display  detailed	information  about  configuration
	      space accesses.

       -f     Tells  setpci  not  to  complain	when  there's  nothing to do (when no devices are
	      selected).  This option is intended for  use  in	widely-distributed  configuration
	      scripts  where  it's  uncertain  whether	the  device in question is present in the
	      machine or not.

       -D     `Demo mode' -- simulate configuration space accesses instead of really doing  them.
	      It's  useful  to	try setpci -vD to see what your complex sequence of setpci opera-
	      tions does before you actually execute it.

       --version
	      Shows setpci version. This option should be used standalone.

DEVICE SELECTION
       Before each sequence of operations you need to select which devices you wish  that  opera-
       tion to affect.

       -s [[<bus>]:][<slot>][.[<func>]]
	      Select  devices  in  specified bus, slot and function. Each component of the device
	      address can be omitted or set as "*" meaning "any value". All numbers are hexadeci-
	      mal.  E.g., "0:" means all devices on bus 0, "0" means all functions of device 0 on
	      any bus, "0.3" selects third function of device 0 on all busses  and  ".4"  selects
	      only fourth function of each device.

       -d [<vendor>]:[<device>]
	      Select devices with specified vendor and device ID. Both ID's are given in hexadec-
	      imal and may be omitted or given as "*" meaning "any value".

OPERATIONS
       To query value of a configuration register, just name it (either by typing its name or  by
       typing  register  address  with	optional .B, .W or .L suffix specifying register width as
       byte, word or longword).

       To set a register, write reg=values where reg is the same you would use to query the  reg-
       ister  and  values is a comma-separated list of values you want to write starting with the
       given address.

REGISTER NAMES
       setpci knows the following configuration register names. See PCI bus specs for their  pre-
       cise meaning or consult /usr/include/linux/pci.h for few comments.

       VENDOR_ID
       DEVICE_ID
       COMMAND
       STATUS
       REVISION
       CLASS_PROG
       CLASS_DEVICE
       CACHE_LINE_SIZE
       LATENCY_TIMER
       HEADER_TYPE
       BIST
       BASE_ADDRESS_0
       BASE_ADDRESS_1
       BASE_ADDRESS_2
       BASE_ADDRESS_3
       BASE_ADDRESS_4
       BASE_ADDRESS_5
       CARDBUS_CIS
       SUBSYSTEM_VENDOR_ID
       SUBSYSTEM_ID
       ROM_ADDRESS
       INTERRUPT_LINE
       INTERRUPT_PIN
       MIN_GNT
       MAX_LAT
       PRIMARY_BUS
       SECONDARY_BUS
       SUBORDINATE_BUS
       SEC_LATENCY_TIMER
       IO_BASE
       IO_LIMIT
       SEC_STATUS
       MEMORY_BASE
       MEMORY_LIMIT
       PREF_MEMORY_BASE
       PREF_MEMORY_LIMIT
       PREF_BASE_UPPER32
       PREF_LIMIT_UPPER32
       IO_BASE_UPPER16
       IO_LIMIT_UPPER16
       BRIDGE_ROM_ADDRESS
       BRIDGE_CONTROL
       CB_CARDBUS_BASE
       CB_CAPABILITIES
       CB_SEC_STATUS
       CB_BUS_NUMBER
       CB_CARDBUS_NUMBER
       CB_SUBORDINATE_BUS
       CB_CARDBUS_LATENCY
       CB_MEMORY_BASE_0
       CB_MEMORY_LIMIT_0
       CB_MEMORY_BASE_1
       CB_MEMORY_LIMIT_1
       CB_IO_BASE_0
       CB_IO_BASE_0_HI
       CB_IO_LIMIT_0
       CB_IO_LIMIT_0_HI
       CB_IO_BASE_1
       CB_IO_BASE_1_HI
       CB_IO_LIMIT_1
       CB_IO_LIMIT_1_HI
       CB_SUBSYSTEM_VENDOR_ID
       CB_SUBSYSTEM_ID
       CB_LEGACY_MODE_BASE

PCILIB OPTIONS
       The  PCI utilities use PCILIB (a portable library providing platform-independent functions
       for PCI configuration space access) to talk to the PCI cards. The following  options  con-
       trol parameters of the library, especially what access method it uses.  By default, PCILIB
       uses the first available access method and displays no debugging messages. Each switch  is
       accompanied by a list of hardware/software configurations it's supported in.

       -P <dir>
	      Use   Linux   2.1   style  configuration	access	to  directory  <dir>  instead  of
	      /proc/bus/pci. (Linux 2.1 or newer only)

       -H1    Use direct hardware access via Intel configuration mechanism 1. (i386 and  compati-
	      ble only)

       -H2    Use  direct  hardware  access  via  Intel  configuration mechanism 2. Warning: This
	      method is able to address only first 16 devices on any bus and it seems to be  very
	      unrealiable in many cases. (i386 and compatible only)

       -S     Use PCI access syscalls. (Linux on Alpha and UltraSparc only)

       -F <file>
	      Extract all information from given file containing output of lspci -x. This is very
	      useful for analysis of user-supplied bug reports, because you can display the hard-
	      ware  configuration  in  any way you want without disturbing the user with requests
	      for more dumps. (All systems)

       -G     Increase debug level of the library. (All systems)

EXAMPLES
       `setpci -d *:* latency_timer=40' sets the latency timer to 64 (40 hexadecimal).

       `setpci -s 0 device_id vendor_id' lists ID's of devices in slot 0 in all busses.

       `setpci -s 12:3.4 3c.l=1,2,3' writes longword 1 to register 3c, 2 to register 3d and 3  to
       register 3e of device at bus 12, slot 3, function 4.

SEE ALSO
       lspci(8)

AUTHOR
       The Linux PCI Utilities are maintained by Martin Mares <mj@ucw.cz>.

pciutils-2.1.10 			  30 March 2002 				setpci(8)
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