'\" t
.\"     Title: ata_unpack_xfermask
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: September 2017
.\"    Manual: libata Library
.\"    Source: Kernel Hackers Manual 4.12.13
.\"  Language: English
.\"
.TH "ATA_UNPACK_XFERMASK" "9" "September 2017" "Kernel Hackers Manual 4\&.12\&" "libata Library"
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.SH "NAME"
ata_unpack_xfermask \- Unpack xfer_mask into pio, mwdma and udma masks
.SH "SYNOPSIS"
.HP \w'void\ ata_unpack_xfermask('u
.BI "void ata_unpack_xfermask(unsigned\ long\ " "xfer_mask" ", unsigned\ long\ *\ " "pio_mask" ", unsigned\ long\ *\ " "mwdma_mask" ", unsigned\ long\ *\ " "udma_mask" ");"
.SH "ARGUMENTS"
.PP
\fIunsigned long xfer_mask\fR
.RS 4
xfer_mask to unpack
.RE
.PP
\fIunsigned long * pio_mask\fR
.RS 4
resulting pio_mask
.RE
.PP
\fIunsigned long * mwdma_mask\fR
.RS 4
resulting mwdma_mask
.RE
.PP
\fIunsigned long * udma_mask\fR
.RS 4
resulting udma_mask
.RE
.SH "DESCRIPTION"
.PP
Unpack
\fIxfer_mask\fR
into
\fIpio_mask\fR,
\fImwdma_mask\fR
and
\fIudma_mask\fR\&. Any NULL destination masks will be ignored\&.
.SH "AUTHOR"
.PP
\fBJeff Garzik\fR
.RS 4
Author.
.RE
.SH "COPYRIGHT"
.br