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NSH: Add an option to the mkfatfs command to specify FAT12, FAT16, or FAT32

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This commit is contained in:
Gregory Nutt 2013-12-05 18:16:27 -06:00
parent babb9b4308
commit fe2191e62b
1 changed files with 8 additions and 3 deletions
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Documentation/NuttShell.html
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<tr align="center" bgcolor="#e4e4e4">
<td>
<h1><big><font color="#3c34ec"><i>NuttShell (NSH)</i></font></big></h1>
<p>Last Updated: October 5, 2013</p>
<p>Last Updated: December 5, 2013</p>
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</tr>
</table>
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<p><b>Command Syntax:</b></p>
<ul><pre>
mkfatfs &lt;path&gt;
mkfatfs [-F &lt;fatsize&gt;] &lt;block-driver&gt;
</pre></ul>
<p>
<b>Synopsis</b>.
Format a fat file system on the block device specified by <code>&lt;path&gt;</code>.
Format a fat file system on the block device specified by <code>&lt;block-driver&gt;</code> path.
The FAT size may be provided as an option.
Without the <code>&lt;fatsize&gt;</code> option, <code>mkfatfs</code> will select either the FAT12 or FAT16 format.
For historical reasons, if you want the FAT32 format, it must be explicitly specified on the command line.
</p>
<p>
NSH provides this command to access the <a href="mkfatfs"><code>mkfatfs()</code></a> NuttX API.
This block device must reside in the NuttX <a href="NuttxUserGuide.html#FileSystemOverview"><i>pseudo</i> filesystem</a> and
must have been created by some call to <code>register_blockdriver()</code> (see <code>include/nuttx/fs/fs.h</code>).