table of contents
| 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¶
| April 2023 | Kernel Hackers Manual 2.6. |