xfree86: Document BusID PCI domain format in xorg.conf manpage
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
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@ -1376,10 +1376,10 @@ For PCI/AGP cards,
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the
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.I bus\-id
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string has the form
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.BI PCI: bus : device : function
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(e.g., \(lqPCI:1:0:0\(rq might be appropriate for an AGP card).
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This field is usually optional in single-head configurations when using
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the primary graphics card.
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.BI PCI: bus @ domain : device : function
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(e.g., \(lqPCI:1@0:0:0\(rq might be appropriate for an AGP card). The
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"@domain" part can be left out for PCI domain 0. This field is usually
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optional in single-head configurations when using the primary graphics card.
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In multi-head configurations, or when using a secondary graphics card in a
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single-head configuration, this entry is mandatory.
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Its main purpose is to make an unambiguous connection between the device
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