CLAMP_VAL(9) Driver Basics CLAMP_VAL(9)
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.
COPYRIGHT
Kernel Hackers Manual 2.6. July 2010 CLAMP_VAL(9)
