.TH "pci_bus_read_config_dword" 9 "pci_bus_read_config_dword" "25 May 1998" "Kernel Hacker's Manual" LINUX
.SH NAME
pci_bus_read_config_dword \-  read a dword from a pci device
.SH SYNOPSIS
.B "int" pci_bus_read_config_dword
.BI "(struct pci_bus *" bus ","
.BI "unsigned int " devfn ","
.BI "int " where ","
.BI "u32 *" value ");"
.SH ARGUMENTS
.IP "bus" 12
 pointer to the parent bus of the pci device to read from
.IP "devfn" 12
 the device / function of the pci device to read from
.IP "where" 12
 the location on the pci address space to read from
.IP "value" 12
 pointer to where to place the data read
.SH "DESCRIPTION"
Like \fBpci_read_config_dword\fP but works for pci devices that do not have a
pci_dev structure set up yet. 
Returns 0 on success.