1CABLE_IS_40WIRE(9)           libata Core Internals          CABLE_IS_40WIRE(9)
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NAME

6       cable_is_40wire - 40/80/SATA decider
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SYNOPSIS

9       int cable_is_40wire(struct ata_port * ap);
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ARGUMENTS

12       ap
13           port to consider
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DESCRIPTION

16       This function encapsulates the policy for speed management in one
17       place. At the moment we don't cache the result but there is a good case
18       for setting ap->cbl to the result when we are called with unknown
19       cables (and figuring out if it impacts hotplug at all).
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21       Return 1 if the cable appears to be 40 wire.
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AUTHOR

24       Jeff Garzik
25           Author.
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28Kernel Hackers Manual 3.10         June 2019                CABLE_IS_40WIRE(9)
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