Document the format of extended capabilities in the '-c' output.
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2020-12-20 02:59:44 +00:00
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@ -142,7 +142,7 @@ If the
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option is supplied,
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.Nm
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will list any capabilities supported by each device.
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Each capability will be enumerated via a line in the following format:
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Each capability is enumerated via a line in the following format:
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.Bd -literal
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cap 10[40] = PCI-Express 1 root port
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.Ed
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@ -154,6 +154,18 @@ The second value in the square brackets is the offset of the capability
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in config space in hexadecimal.
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The format of the text after the equals sign is capability-specific.
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.Pp
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Each extended capability is enumerated via a line in a similar format:
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.Bd -literal
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ecap 0002[100] = VC 1 max VC0
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.Ed
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.Pp
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The first value after the
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.Dq Li ecap
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prefix is the extended capability ID in hexadecimal.
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The second value in the square brackets is the offset of the extended
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capability in config space in hexadecimal.
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The format of the text after the equals sign is capability-specific.
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.Pp
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If the
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.Fl v
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option is supplied,
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