'\" t
.\"     Title: clamp_val
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: Driver Basics
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "CLAMP_VAL" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Driver Basics"
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.el       .ds Aq '
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.SH "NAME"
clamp_val \- return a value clamped to a given range using val\*(Aqs type
.SH "SYNOPSIS"
.HP \w'clamp_val('u
.BI "clamp_val(" "val" ", " "lo" ", " "hi" ");"
.SH "ARGUMENTS"
.PP
\fIval\fR
.RS 4
current value
.RE
.PP
\fIlo\fR
.RS 4
minimum allowable value
.RE
.PP
\fIhi\fR
.RS 4
maximum allowable value
.RE
.SH "DESCRIPTION"
.PP
This macro does no typechecking and uses temporary variables of whatever type the input argument \*(Aqval\*(Aq is\&. This is useful when val is an unsigned type and min and max are literals that will otherwise be assigned a signed integer type\&.
.SH "COPYRIGHT"
.br