'\" t
.\" Title: uart_parse_earlycon
.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1
.\" 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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.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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.ie \n(.g .ds Aq \(aq
.el .ds Aq '
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.nh
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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,\*(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 field; NULL if not present (out)
.RE
.SH "DESCRIPTION"
.PP
Decodes earlycon kernel command line parameters of the form earlycon=,io|mmio|mmio16|mmio32|mmio32be|mmio32native,, console=,io|mmio|mmio16|mmio32|mmio32be|mmio32native,,
.PP
The optional form earlycon=,0x, console=,0x, is also accepted; the returned
\fIiotype\fR
will be UPIO_MEM\&.
.PP
Returns 0 on success or \-EINVAL on failure
.SH "COPYRIGHT"
.br