'\" t
.\"     Title: uart_parse_earlycon
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: 16x50 UART Driver
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "UART_PARSE_EARLYCON" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "16x50 UART Driver"
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.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
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.SH "NAME"
uart_parse_earlycon \- Parse earlycon options
.SH "SYNOPSIS"
.HP \w'int\ uart_parse_earlycon('u
.BI "int uart_parse_earlycon(char\ *\ " "p" ", unsigned\ char\ *\ " "iotype" ", unsigned\ long\ *\ " "addr" ", char\ **\ " "options" ");"
.SH "ARGUMENTS"
.PP
\fIp\fR
.RS 4
ptr to 2nd field (ie\&., just beyond \*(Aq<name>,\*(Aq)
.RE
.PP
\fIiotype\fR
.RS 4
ptr for decoded iotype (out)
.RE
.PP
\fIaddr\fR
.RS 4
ptr for decoded mapbase/iobase (out)
.RE
.PP
\fIoptions\fR
.RS 4
ptr for <options> field; NULL if not present (out)
.RE
.SH "DESCRIPTION"
.PP
Decodes earlycon kernel command line parameters of the form earlycon=<name>,io|mmio|mmio16|mmio32|mmio32be|mmio32native,<addr>,<options> console=<name>,io|mmio|mmio16|mmio32|mmio32be|mmio32native,<addr>,<options>
.PP
The optional form earlycon=<name>,0x<addr>,<options> console=<name>,0x<addr>,<options> is also accepted; the returned
\fIiotype\fR
will be UPIO_MEM\&.
.PP
Returns 0 on success or \-EINVAL on failure
.SH "COPYRIGHT"
.br