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sys_attrs_pci(5)
NAME
  sys_attrs_pci - pci subsystem attributes

DESCRIPTION
  This reference page lists and describes attributes for the PCI (pci) kernel
  subsystem. Refer to the sys_attrs(5) reference page for an introduction to
  the topic of kernel subsystem attributes.

  For this subsytem, users should modify only the following attribute and do
  so only for the purpose described. Any other visible attributes cannot or
  should not be modified.

  PCI_Developer_Debug
      A bit-mask setting that allows the developer of PCI hardware and
      softwareto determine the PCI configuration parameters on an Alpha
      system based on the PCI bus.  By setting PCI_Developer_Debug to
      different values, a variety of hardware-related or software-related
      information about all PCI devices on an AlphaServer are printed out at
      system bootstrap time. If loadable drivers are used, loadable
      configuration data is also printed out on execution of the sysconfig -c
      command.

      Refer to the /usr/include/io/dec/pci/pci_debug.h file for valid bit-
      field settings for this attribute.  The pci_debug.h file contains macro
      definitions that state the type of information that is printed out if
      PCI_Developer_Debug is set to a particular value.	 Any combination of
      the bit-flags is valid. For example, the value 0x70 allows the hardware
      or software developer to see the PCI configuration header information
      that the kernel reads or assigns to PCI devices.

      Default value: 0

      Minimum value: 0

      Maximum value: FFFFFFFF(16)

SEE ALSO
  sys_attrs(5)

  Writing PCI Bus Device Drivers

Index for Section 5

Alphabetical listing for S

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