pci_get_domain_bus_and_slot(9) [centos man page]

PCI_GET_DOMAIN_BUS_A(9) 					Hardware Interfaces					   PCI_GET_DOMAIN_BUS_A(9)

NAME

       pci_get_domain_bus_and_slot - locate PCI device for a given PCI domain (segment), bus, and slot

SYNOPSIS

       struct pci_dev * pci_get_domain_bus_and_slot(int domain, unsigned int bus, unsigned int devfn);

ARGUMENTS

       domain
	   PCI domain/segment on which the PCI device resides.

       bus
	   PCI bus on which desired PCI device resides

       devfn
	   encodes number of PCI slot in which the desired PCI device resides and the logical device number within that slot in case of
	   multi-function devices.

DESCRIPTION

       Given a PCI domain, bus, and slot/function number, the desired PCI device is located in the list of PCI devices. If the device is found,
       its reference count is increased and this function returns a pointer to its data structure. The caller must decrement the reference count
       by calling pci_dev_put. If no device is found, NULL is returned.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						   PCI_GET_DOMAIN_BUS_A(9)

PCITWEAK(1)						      General Commands Manual						       PCITWEAK(1)

NAME

       pcitweak - read/write PCI config space

SYNOPSIS

       pcitweak -l
       pcitweak -r PCI-ID [-b|-h] offset
       pcitweak -w PCI-ID [-b|-h] offset value

DESCRIPTION

       Pcitweak  is  a utility that can be used to examine or change registers in the PCI configuration space.	On most platfoms pcitweak can only
       be run by the root user.

OPTIONS

       -l      Probe the PCI buses and print a line for each detected device.  Each line contains the  bus  location  (bus:device:function),  chip
	       vendor/device, card (subsystem) vendor/card, revision, class and header type.  All values printed are in hexadecimal.

       -r PCI-ID
	       Read  the PCI configuration space register at offset for the PCI device at bus location PCI-ID.	PCI-ID should be given in the form
	       bus:device:function, with each value in hexadecimal.  By default, a 32-bit register is read.

       -w PCI-ID
	       Write value to the PCI configuration space register at offset for the PCI device at bus location PCI-ID.  PCI-ID should be given in
	       the form bus:device:function, with each value in hexadecimal.  By default, a 32-bit register is written.

       -b      Read or write an 8-bit value (byte).

       -h      Read or write a 16-bit value (halfword).

SEE ALSO

       scanpci(1)

AUTHORS

       David Dawes (dawes@xfree86.org).

XFree86 						       Version Version 4.3.0						       PCITWEAK(1)