CLAMP_VAL

Section: Driver Basics (9)
Updated: February 2011
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NAME

clamp_val - return a value clamped to a given range using val's type  

SYNOPSIS

clamp_val(val, min, max);
 

ARGUMENTS

val

current value

min

minimum allowable value

max

maximum allowable value
 

DESCRIPTION

This macro does no typechecking and uses temporary variables of whatever type the input argument 'val' 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.  

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