'\" t
.\"     Title: i2o_msg_get_wait
.\"    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: Message-based devices
.\"    Source: Kernel Hackers Manual 3.16.56
.\"  Language: English
.\"
.TH "I2O_MSG_GET_WAIT" "9" "May 2018" "Kernel Hackers Manual 3\&.16\&" "Message-based devices"
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.SH "NAME"
i2o_msg_get_wait \- obtain an I2O message from the IOP
.SH "SYNOPSIS"
.HP \w'struct\ i2o_message\ *\ i2o_msg_get_wait('u
.BI "struct i2o_message * i2o_msg_get_wait(struct\ i2o_controller\ *\ " "c" ", int\ " "wait" ");"
.SH "ARGUMENTS"
.PP
\fIc\fR
.RS 4
I2O controller
.RE
.PP
\fIwait\fR
.RS 4
how long to wait until timeout
.RE
.SH "DESCRIPTION"
.PP
This function waits up to wait seconds for a message slot to be available\&.
.PP
On a success the message is returned and the pointer to the message is set in msg\&. The returned message is the physical page frame offset address from the read port (see the i2o spec)\&. If no message is available returns I2O_QUEUE_EMPTY and msg is leaved untouched\&.
.SH "COPYRIGHT"
.br