41 lines
1.8 KiB
Plaintext
41 lines
1.8 KiB
Plaintext
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Apache NuttX
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Copyright 2020 The Apache Software Foundation
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FAT Long File Names
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===================
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NOTE: If CONFIG_FAT_LFN is defined in your NuttX configuration file, then
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there may be some legal, patent issues. The following was extracted from
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the entry "File Allocation Table from Wikipedia, the free encyclopedia:
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"On December 3, 2003 Microsoft announced it would be offering licenses
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for use of its FAT specification and 'associated intellectual property',
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at the cost of a US$0.25 royalty per unit sold, with a $250,000 maximum
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royalty per license agreement.
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o "U.S. Patent 5,745,902 (http://www.google.com/patents?vid=5745902) -
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Method and system for accessing a file using file names having
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different file name formats. ...
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o "U.S. Patent 5,579,517 (http://www.google.com/patents?vid=5579517) -
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Common name space for long and short filenames. ...
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o "U.S. Patent 5,758,352 (http://www.google.com/patents?vid=5758352) -
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Common name space for long and short filenames. ...
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o "U.S. Patent 6,286,013 (http://www.google.com/patents?vid=6286013) -
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Method and system for providing a common name space for long and
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short file names in an operating system. ...
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"Many technical commentators have concluded that these patents only cover
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FAT implementations that include support for long filenames, and that
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removable solid state media and consumer devices only using short names
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would be unaffected. ..."
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This Wikipedia entry has been updated with recent legal decisions in favor
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of Microsoft. Refer to:
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https://en.wikipedia.org/wiki/File_Allocation_Table#Patents
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So you have been forewarned: Use the long filename at your own risk!
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This product includes software developed at
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The Apache Software Foundation (http://www.apache.org/).
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