.TH "pci_set_mwi" 9 "pci_set_mwi" "25 May 1998" "Kernel Hacker's Manual" LINUX .SH NAME pci_set_mwi \- enables memory-write-invalidate PCI transaction .SH SYNOPSIS .B "int" pci_set_mwi .BI "(struct pci_dev *" dev ");" .SH ARGUMENTS .IP "dev" 12 the PCI device for which MWI is enabled .SH "DESCRIPTION" Enables the Memory-Write-Invalidate transaction in PCI_COMMAND, and then calls \fIpcibios_set_mwi\fP to do the needed arch specific operations or a generic mwi-prep function. .SH "RETURNS" An appriopriate -ERRNO error value on eror, or zero for success.