'\" t
.\"     Title: get_phy_id
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: May 2018
.\"    Manual: Network device support
.\"    Source: Kernel Hackers Manual 3.16.56
.\"  Language: English
.\"
.TH "GET_PHY_ID" "9" "May 2018" "Kernel Hackers Manual 3\&.16\&" "Network device support"
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.SH "NAME"
get_phy_id \- reads the specified addr for its ID\&.
.SH "SYNOPSIS"
.HP \w'int\ get_phy_id('u
.BI "int get_phy_id(struct\ mii_bus\ *\ " "bus" ", int\ " "addr" ", u32\ *\ " "phy_id" ", bool\ " "is_c45" ", struct\ phy_c45_device_ids\ *\ " "c45_ids" ");"
.SH "ARGUMENTS"
.PP
\fIbus\fR
.RS 4
the target MII bus
.RE
.PP
\fIaddr\fR
.RS 4
PHY address on the MII bus
.RE
.PP
\fIphy_id\fR
.RS 4
where to store the ID retrieved\&.
.RE
.PP
\fIis_c45\fR
.RS 4
If true the PHY uses the 802\&.3 clause 45 protocol
.RE
.PP
\fIc45_ids\fR
.RS 4
where to store the c45 ID information\&.
.RE
.SH "DESCRIPTION"
.PP
In the case of a 802\&.3\-c22 PHY, reads the ID registers of the PHY at
\fIaddr\fR
on the
\fIbus\fR, stores it in
\fIphy_id\fR
and returns zero on success\&.
.PP
In the case of a 802\&.3\-c45 PHY,
\fBget_phy_c45_ids\fR
is invoked, and its return value is in turn returned\&.
.SH "COPYRIGHT"
.br