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8 <title>FatFs - disk_write</title>
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15 <p>The disk_write writes sector(s) to the disk.</p>
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17 DRESULT disk_write (
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18 BYTE <em>Drive</em>, /* Physical drive number */
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19 const BYTE* <em>Buffer</em>, /* Pointer to the write data (may be non aligned) */
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20 DWORD <em>SectorNumber</em>, /* Sector number to write */
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21 BYTE <em>SectorCount</em> /* Number of sectors to write */
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30 <dd>Specifies the physical drive number.</dd>
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32 <dd>Pointer to the byte array to be written. The start address specified by upper layer may be aligned or non-aligned.</dd>
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33 <dt>SectorNumber</dt>
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34 <dd>Specifies the start sector number in logical block address (LBA).</dd>
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35 <dt>SectorCount</dt>
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36 <dd>Specifies the number of sectors to write. The value can be 1 to 255.</dd>
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42 <h4>Return Values</h4>
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45 <dd>The function succeeded.</dd>
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47 <dd>Any hard error occured during the write operation and could not recover it.</dd>
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49 <dd>The medium is write protected.</dd>
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51 <dd>Invalid parameter.</dd>
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53 <dd>The disk drive has not been initialized.</dd>
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59 <h4>Description</h4>
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60 <p>This function is not required in read only configuration.</p>
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64 <p class="foot"><a href="../00index_e.html">Return</a></p>
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