1CLAMP_VAL(9) Driver Basics CLAMP_VAL(9)
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6 clamp_val - return a value clamped to a given range using val´s type
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9 clamp_val(val, min, max);
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12 val
13 current value
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15 min
16 minimum allowable value
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18 max
19 maximum allowable value
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22 This macro does no typechecking and uses temporary variables of
23 whatever type the input argument ´val´ is. This is useful when val is
24 an unsigned type and min and max are literals that will otherwise be
25 assigned a signed integer type.
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28Kernel Hackers Manual 2.6. June 2019 CLAMP_VAL(9)