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<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;
font-family:Arial">Hi,<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;
font-family:Arial"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;
font-family:Arial">With the RTEMS4.10, we noticed that there is concept about long and short file names in the DOSFS.
<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;
font-family:Arial">We use the DOSFS on an SDCARD. When we try to write a file on the card, with file name say ‘Error2.txt’, the DOSFS detects this as a long file name and then
executes the below code in function msdos_find_name_in_fat_file(), while creating the file.
<o:p></o:p></span></font></p>
<p><font size="2" color="gray" face="Courier"><span style="font-size:10.0pt;
font-family:Courier;color:gray"> </span></font><b><font size="2" color="navy" face="Courier"><span style="font-size:10.0pt;font-family:Courier;
color:navy;font-weight:bold">if</span></font></b><font size="2" color="gray" face="Courier"><span style="font-size:10.0pt;font-family:Courier;color:gray"> </span></font><b><font size="2" face="Courier"><span style="font-size:10.0pt;font-family:Courier;
font-weight:bold">(</span></font></b><font size="2" face="Courier"><span style="font-size:10.0pt;font-family:Courier">name_type<font color="gray"><span style="color:gray"> </span></font><b><span style="font-weight:bold">==</span></b><font color="gray"><span style="color:gray"> </span></font>MSDOS_NAME_LONG<b><span style="font-weight:bold">)</span></b><font color="gray"><span style="color:gray"><br>
</span></font><b><span style="font-weight:bold">{</span></b><font color="gray"><span style="color:gray"><br>
</span></font><b><font color="navy"><span style="color:navy;font-weight:bold">int</span></font></b><font color="gray"><span style="color:gray"> </span></font>slot<font color="gray"><span style="color:gray"> </span></font><b><span style="font-weight:bold">=</span></b><font color="gray"><span style="color:gray"> </span></font><b><span style="font-weight:bold">(((</span></b>empty_space_offset<font color="gray"><span style="color:gray"> </span></font><b><span style="font-weight:bold">*</span></b><font color="gray"><span style="color:gray"> </span></font>bts2rd<b><span style="font-weight:bold">)</span></b><font color="gray"><span style="color:gray"> </span></font><b><span style="font-weight:bold">+</span></b><font color="gray"><span style="color:gray"> </span></font>empty_space_entry<b><span style="font-weight:bold">)</span></b><font color="gray"><span style="color:gray"> </span></font><b><span style="font-weight:bold">/</span></b><font color="gray"><span style="color:gray"><br>
</span></font>MSDOS_DIRECTORY_ENTRY_STRUCT_SIZE<b><span style="font-weight:bold">)</span></b><font color="gray"><span style="color:gray"> </span></font><b><span style="font-weight:bold">+</span></b><font color="gray"><span style="color:gray"> </span></font>lfn_entries<font color="gray"><span style="color:gray"> </span></font><b><span style="font-weight:bold">+</span></b><font color="gray"><span style="color:gray"> </span></font><font color="teal"><span style="color:teal">1</span></font><b><span style="font-weight:
bold">;</span></b><font color="gray"><span style="color:gray"><br>
</span></font>msdos_short_name_hex<b><span style="font-weight:bold">(</span></b>MSDOS_DIR_NAME<b><span style="font-weight:
bold">(</span></b>name_dir_entry<b><span style="font-weight:bold">),</span></b><font color="gray"><span style="color:gray"> </span></font>slot<b><span style="font-weight:bold">);</span></b><font color="gray"><span style="color:gray"><br>
</span></font><b><span style="font-weight:bold">}</span></b><o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;
font-family:Arial">The above piece of code modifies the file name as ERR~0005.TXT. This is the file name seen when we see the contents of the card on a Windows based machine using
card reader. The file name of the file as seen from the RTEMS shell is still ‘Error2.txt’<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;
font-family:Arial"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;
font-family:Arial">Can anyone guide as what should be done to see a the correct file name (Error2.txt) on the Windows machine?<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;
font-family:Arial"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;
font-family:Arial">Regards,<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;
font-family:Arial">Ali<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;
font-family:Arial"><o:p> </o:p></span></font></p>
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