'\" t
.\"     Title: uart_get_baud_rate
.\"    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_GET_BAUD_RATE" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "16x50 UART Driver"
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.SH "NAME"
uart_get_baud_rate \- return baud rate for a particular port
.SH "SYNOPSIS"
.HP \w'unsigned\ int\ uart_get_baud_rate('u
.BI "unsigned int uart_get_baud_rate(struct\ uart_port\ *\ " "port" ", struct\ ktermios\ *\ " "termios" ", struct\ ktermios\ *\ " "old" ", unsigned\ int\ " "min" ", unsigned\ int\ " "max" ");"
.SH "ARGUMENTS"
.PP
\fIport\fR
.RS 4
uart_port structure describing the port in question\&.
.RE
.PP
\fItermios\fR
.RS 4
desired termios settings\&.
.RE
.PP
\fIold\fR
.RS 4
old termios (or NULL)
.RE
.PP
\fImin\fR
.RS 4
minimum acceptable baud rate
.RE
.PP
\fImax\fR
.RS 4
maximum acceptable baud rate
.RE
.SH "DESCRIPTION"
.PP
Decode the termios structure into a numeric baud rate, taking account of the magic 38400 baud rate (with spd_* flags), and mapping the
\fBB0\fR
rate to 9600 baud\&.
.PP
If the new baud rate is invalid, try the old termios setting\&. If it\*(Aqs still invalid, we try 9600 baud\&.
.PP
Update the
\fItermios\fR
structure to reflect the baud rate we\*(Aqre actually going to be using\&. Don\*(Aqt do this for the case where B0 is requested (\(lqhang up\(rq)\&.
.SH "COPYRIGHT"
.br