選択できるのは25トピックまでです。 トピックは、先頭が英数字で、英数字とダッシュ('-')を使用した35文字以内のものにしてください。

625 行
28KB

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  86. <div class="headertitle">
  87. <div class="title">FatVolume Class Reference</div> </div>
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  89. <div class="contents">
  90. <p>Access FAT16 and FAT32 volumes on raw file devices.
  91. <a href="class_fat_volume.html#details">More...</a></p>
  92. <p><code>#include &lt;FatVolume.h&gt;</code></p>
  93. <div class="dynheader">
  94. Inheritance diagram for FatVolume:</div>
  95. <div class="dyncontent">
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  110. Public Member Functions</h2></td></tr>
  111. <tr class="memitem:a06beed4cea5e38116b58254a57125442"><td class="memItemLeft" align="right" valign="top">uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_volume.html#a06beed4cea5e38116b58254a57125442">blocksPerCluster</a> () const </td></tr>
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  121. <tr class="memitem:a443364af257c219f8e908d5b073d8fa3"><td class="memItemLeft" align="right" valign="top">uint32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_volume.html#a443364af257c219f8e908d5b073d8fa3">dataStartBlock</a> () const </td></tr>
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  123. <tr class="memitem:a25c6311b70fa274b3be94ff25fdebba7"><td class="memItemLeft" align="right" valign="top">int8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_volume.html#a25c6311b70fa274b3be94ff25fdebba7">dbgFat</a> (uint32_t n, uint32_t *v)</td></tr>
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  135. <tr class="memitem:acab819fa25a91dad1cc698a7e1e0eb32"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_volume.html#acab819fa25a91dad1cc698a7e1e0eb32">init</a> ()</td></tr>
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  137. <tr class="memitem:a034d997a1e7a0b2b664a4357bcccd256"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_volume.html#a034d997a1e7a0b2b664a4357bcccd256">init</a> (uint8_t part)</td></tr>
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  139. <tr class="memitem:ab2d483670a0a6a6a4754b23614fe11bc"><td class="memItemLeft" align="right" valign="top">uint16_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_volume.html#ab2d483670a0a6a6a4754b23614fe11bc">rootDirEntryCount</a> () const </td></tr>
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  141. <tr class="memitem:ae9363ebbbae90e895ea56e8fa3f60c13"><td class="memItemLeft" align="right" valign="top">uint32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_volume.html#ae9363ebbbae90e895ea56e8fa3f60c13">rootDirStart</a> () const </td></tr>
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  143. <tr class="memitem:a07bc98088ce4a9c725700899c184f7fc"><td class="memItemLeft" align="right" valign="top">uint32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_volume.html#a07bc98088ce4a9c725700899c184f7fc">volumeBlockCount</a> () const </td></tr>
  144. <tr class="separator:a07bc98088ce4a9c725700899c184f7fc"><td class="memSeparator" colspan="2">&#160;</td></tr>
  145. <tr class="memitem:a8088aa74cf601996905dadd2eea6966c"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_volume.html#a8088aa74cf601996905dadd2eea6966c">wipe</a> (<a class="el" href="_fat_volume_8h.html#ac62f6449331cfe1a71f29be30efe7890">print_t</a> *pr=0)</td></tr>
  146. <tr class="separator:a8088aa74cf601996905dadd2eea6966c"><td class="memSeparator" colspan="2">&#160;</td></tr>
  147. </table><table class="memberdecls">
  148. <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="friends"></a>
  149. Friends</h2></td></tr>
  150. <tr class="memitem:a1e97a7aed860b898c403cb29455b3fe7"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a1e97a7aed860b898c403cb29455b3fe7"></a>
  151. class&#160;</td><td class="memItemRight" valign="bottom"><b>FatCache</b></td></tr>
  152. <tr class="separator:a1e97a7aed860b898c403cb29455b3fe7"><td class="memSeparator" colspan="2">&#160;</td></tr>
  153. <tr class="memitem:a18fb15a715ea85037ab802286853103e"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a18fb15a715ea85037ab802286853103e"></a>
  154. class&#160;</td><td class="memItemRight" valign="bottom"><b>FatFile</b></td></tr>
  155. <tr class="separator:a18fb15a715ea85037ab802286853103e"><td class="memSeparator" colspan="2">&#160;</td></tr>
  156. <tr class="memitem:ac095954ff68b78a07c0cf5fabbb2db6f"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ac095954ff68b78a07c0cf5fabbb2db6f"></a>
  157. class&#160;</td><td class="memItemRight" valign="bottom"><b>FatFileSystem</b></td></tr>
  158. <tr class="separator:ac095954ff68b78a07c0cf5fabbb2db6f"><td class="memSeparator" colspan="2">&#160;</td></tr>
  159. </table>
  160. <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
  161. <div class="textblock"><p>Access FAT16 and FAT32 volumes on raw file devices. </p>
  162. </div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
  163. <a class="anchor" id="a026de2bb58026e4edea130db2949b84c"></a>
  164. <div class="memitem">
  165. <div class="memproto">
  166. <table class="mlabels">
  167. <tr>
  168. <td class="mlabels-left">
  169. <table class="memname">
  170. <tr>
  171. <td class="memname">FatVolume::FatVolume </td>
  172. <td>(</td>
  173. <td class="paramname"></td><td>)</td>
  174. <td></td>
  175. </tr>
  176. </table>
  177. </td>
  178. <td class="mlabels-right">
  179. <span class="mlabels"><span class="mlabel">inline</span></span> </td>
  180. </tr>
  181. </table>
  182. </div><div class="memdoc">
  183. <p>Create an instance of <a class="el" href="class_fat_volume.html" title="Access FAT16 and FAT32 volumes on raw file devices. ">FatVolume</a> </p>
  184. </div>
  185. </div>
  186. <h2 class="groupheader">Member Function Documentation</h2>
  187. <a class="anchor" id="a06beed4cea5e38116b58254a57125442"></a>
  188. <div class="memitem">
  189. <div class="memproto">
  190. <table class="mlabels">
  191. <tr>
  192. <td class="mlabels-left">
  193. <table class="memname">
  194. <tr>
  195. <td class="memname">uint8_t FatVolume::blocksPerCluster </td>
  196. <td>(</td>
  197. <td class="paramname"></td><td>)</td>
  198. <td> const</td>
  199. </tr>
  200. </table>
  201. </td>
  202. <td class="mlabels-right">
  203. <span class="mlabels"><span class="mlabel">inline</span></span> </td>
  204. </tr>
  205. </table>
  206. </div><div class="memdoc">
  207. <dl class="section return"><dt>Returns</dt><dd>The volume's cluster size in blocks. </dd></dl>
  208. </div>
  209. </div>
  210. <a class="anchor" id="abc66d856d05198d9ebe7104c8c4155d7"></a>
  211. <div class="memitem">
  212. <div class="memproto">
  213. <table class="mlabels">
  214. <tr>
  215. <td class="mlabels-left">
  216. <table class="memname">
  217. <tr>
  218. <td class="memname">uint32_t FatVolume::blocksPerFat </td>
  219. <td>(</td>
  220. <td class="paramname"></td><td>)</td>
  221. <td> const</td>
  222. </tr>
  223. </table>
  224. </td>
  225. <td class="mlabels-right">
  226. <span class="mlabels"><span class="mlabel">inline</span></span> </td>
  227. </tr>
  228. </table>
  229. </div><div class="memdoc">
  230. <dl class="section return"><dt>Returns</dt><dd>The number of blocks in one FAT. </dd></dl>
  231. </div>
  232. </div>
  233. <a class="anchor" id="aa1e3b1d0c21d202deb82668068ab00e8"></a>
  234. <div class="memitem">
  235. <div class="memproto">
  236. <table class="mlabels">
  237. <tr>
  238. <td class="mlabels-left">
  239. <table class="memname">
  240. <tr>
  241. <td class="memname"><a class="el" href="unioncache__t.html">cache_t</a>* FatVolume::cacheClear </td>
  242. <td>(</td>
  243. <td class="paramname"></td><td>)</td>
  244. <td></td>
  245. </tr>
  246. </table>
  247. </td>
  248. <td class="mlabels-right">
  249. <span class="mlabels"><span class="mlabel">inline</span></span> </td>
  250. </tr>
  251. </table>
  252. </div><div class="memdoc">
  253. <p>Clear the cache and returns a pointer to the cache. Not for normal apps. </p><dl class="section return"><dt>Returns</dt><dd>A pointer to the cache buffer or zero if an error occurs. </dd></dl>
  254. </div>
  255. </div>
  256. <a class="anchor" id="a18446a9c5924304fa7a87d5f03ccaf21"></a>
  257. <div class="memitem">
  258. <div class="memproto">
  259. <table class="mlabels">
  260. <tr>
  261. <td class="mlabels-left">
  262. <table class="memname">
  263. <tr>
  264. <td class="memname">uint32_t FatVolume::clusterCount </td>
  265. <td>(</td>
  266. <td class="paramname"></td><td>)</td>
  267. <td> const</td>
  268. </tr>
  269. </table>
  270. </td>
  271. <td class="mlabels-right">
  272. <span class="mlabels"><span class="mlabel">inline</span></span> </td>
  273. </tr>
  274. </table>
  275. </div><div class="memdoc">
  276. <dl class="section return"><dt>Returns</dt><dd>The total number of clusters in the volume. </dd></dl>
  277. </div>
  278. </div>
  279. <a class="anchor" id="ac0e63f33d71d5dc95a602834274def6a"></a>
  280. <div class="memitem">
  281. <div class="memproto">
  282. <table class="mlabels">
  283. <tr>
  284. <td class="mlabels-left">
  285. <table class="memname">
  286. <tr>
  287. <td class="memname">uint8_t FatVolume::clusterSizeShift </td>
  288. <td>(</td>
  289. <td class="paramname"></td><td>)</td>
  290. <td> const</td>
  291. </tr>
  292. </table>
  293. </td>
  294. <td class="mlabels-right">
  295. <span class="mlabels"><span class="mlabel">inline</span></span> </td>
  296. </tr>
  297. </table>
  298. </div><div class="memdoc">
  299. <dl class="section return"><dt>Returns</dt><dd>The shift count required to multiply by blocksPerCluster. </dd></dl>
  300. </div>
  301. </div>
  302. <a class="anchor" id="a443364af257c219f8e908d5b073d8fa3"></a>
  303. <div class="memitem">
  304. <div class="memproto">
  305. <table class="mlabels">
  306. <tr>
  307. <td class="mlabels-left">
  308. <table class="memname">
  309. <tr>
  310. <td class="memname">uint32_t FatVolume::dataStartBlock </td>
  311. <td>(</td>
  312. <td class="paramname"></td><td>)</td>
  313. <td> const</td>
  314. </tr>
  315. </table>
  316. </td>
  317. <td class="mlabels-right">
  318. <span class="mlabels"><span class="mlabel">inline</span></span> </td>
  319. </tr>
  320. </table>
  321. </div><div class="memdoc">
  322. <dl class="section return"><dt>Returns</dt><dd>The logical block number for the start of file data. </dd></dl>
  323. </div>
  324. </div>
  325. <a class="anchor" id="a25c6311b70fa274b3be94ff25fdebba7"></a>
  326. <div class="memitem">
  327. <div class="memproto">
  328. <table class="mlabels">
  329. <tr>
  330. <td class="mlabels-left">
  331. <table class="memname">
  332. <tr>
  333. <td class="memname">int8_t FatVolume::dbgFat </td>
  334. <td>(</td>
  335. <td class="paramtype">uint32_t&#160;</td>
  336. <td class="paramname"><em>n</em>, </td>
  337. </tr>
  338. <tr>
  339. <td class="paramkey"></td>
  340. <td></td>
  341. <td class="paramtype">uint32_t *&#160;</td>
  342. <td class="paramname"><em>v</em>&#160;</td>
  343. </tr>
  344. <tr>
  345. <td></td>
  346. <td>)</td>
  347. <td></td><td></td>
  348. </tr>
  349. </table>
  350. </td>
  351. <td class="mlabels-right">
  352. <span class="mlabels"><span class="mlabel">inline</span></span> </td>
  353. </tr>
  354. </table>
  355. </div><div class="memdoc">
  356. <p>Debug access to FAT table</p>
  357. <dl class="params"><dt>Parameters</dt><dd>
  358. <table class="params">
  359. <tr><td class="paramdir">[in]</td><td class="paramname">n</td><td>cluster number. </td></tr>
  360. <tr><td class="paramdir">[out]</td><td class="paramname">v</td><td>value of entry </td></tr>
  361. </table>
  362. </dd>
  363. </dl>
  364. <dl class="section return"><dt>Returns</dt><dd>true for success or false for failure </dd></dl>
  365. </div>
  366. </div>
  367. <a class="anchor" id="acdedc6a200b01e401c9cd9b511eae6ec"></a>
  368. <div class="memitem">
  369. <div class="memproto">
  370. <table class="mlabels">
  371. <tr>
  372. <td class="mlabels-left">
  373. <table class="memname">
  374. <tr>
  375. <td class="memname">uint8_t FatVolume::fatCount </td>
  376. <td>(</td>
  377. <td class="paramname"></td><td>)</td>
  378. <td></td>
  379. </tr>
  380. </table>
  381. </td>
  382. <td class="mlabels-right">
  383. <span class="mlabels"><span class="mlabel">inline</span></span> </td>
  384. </tr>
  385. </table>
  386. </div><div class="memdoc">
  387. <dl class="section return"><dt>Returns</dt><dd>The number of <a class="el" href="class_file.html" title="Arduino SD.h style File API. ">File</a> Allocation Tables. </dd></dl>
  388. </div>
  389. </div>
  390. <a class="anchor" id="a0dd0cc689b63ef0702aed1cf36b1722d"></a>
  391. <div class="memitem">
  392. <div class="memproto">
  393. <table class="mlabels">
  394. <tr>
  395. <td class="mlabels-left">
  396. <table class="memname">
  397. <tr>
  398. <td class="memname">uint32_t FatVolume::fatStartBlock </td>
  399. <td>(</td>
  400. <td class="paramname"></td><td>)</td>
  401. <td> const</td>
  402. </tr>
  403. </table>
  404. </td>
  405. <td class="mlabels-right">
  406. <span class="mlabels"><span class="mlabel">inline</span></span> </td>
  407. </tr>
  408. </table>
  409. </div><div class="memdoc">
  410. <dl class="section return"><dt>Returns</dt><dd>The logical block number for the start of the first FAT. </dd></dl>
  411. </div>
  412. </div>
  413. <a class="anchor" id="a1364f11fe9bb4717ce0685e2b7b86027"></a>
  414. <div class="memitem">
  415. <div class="memproto">
  416. <table class="mlabels">
  417. <tr>
  418. <td class="mlabels-left">
  419. <table class="memname">
  420. <tr>
  421. <td class="memname">uint8_t FatVolume::fatType </td>
  422. <td>(</td>
  423. <td class="paramname"></td><td>)</td>
  424. <td> const</td>
  425. </tr>
  426. </table>
  427. </td>
  428. <td class="mlabels-right">
  429. <span class="mlabels"><span class="mlabel">inline</span></span> </td>
  430. </tr>
  431. </table>
  432. </div><div class="memdoc">
  433. <dl class="section return"><dt>Returns</dt><dd>The FAT type of the volume. Values are 12, 16 or 32. </dd></dl>
  434. </div>
  435. </div>
  436. <a class="anchor" id="a1683b063fc6202ab85470b9610f16f93"></a>
  437. <div class="memitem">
  438. <div class="memproto">
  439. <table class="memname">
  440. <tr>
  441. <td class="memname">int32_t FatVolume::freeClusterCount </td>
  442. <td>(</td>
  443. <td class="paramname"></td><td>)</td>
  444. <td></td>
  445. </tr>
  446. </table>
  447. </div><div class="memdoc">
  448. <p>Volume free space in clusters.</p>
  449. <dl class="section return"><dt>Returns</dt><dd>Count of free clusters for success or -1 if an error occurs. </dd></dl>
  450. </div>
  451. </div>
  452. <a class="anchor" id="acab819fa25a91dad1cc698a7e1e0eb32"></a>
  453. <div class="memitem">
  454. <div class="memproto">
  455. <table class="mlabels">
  456. <tr>
  457. <td class="mlabels-left">
  458. <table class="memname">
  459. <tr>
  460. <td class="memname">bool FatVolume::init </td>
  461. <td>(</td>
  462. <td class="paramname"></td><td>)</td>
  463. <td></td>
  464. </tr>
  465. </table>
  466. </td>
  467. <td class="mlabels-right">
  468. <span class="mlabels"><span class="mlabel">inline</span></span> </td>
  469. </tr>
  470. </table>
  471. </div><div class="memdoc">
  472. <p>Initialize a FAT volume. Try partition one first then try super floppy format.</p>
  473. <dl class="section return"><dt>Returns</dt><dd>The value true is returned for success and the value false is returned for failure. </dd></dl>
  474. </div>
  475. </div>
  476. <a class="anchor" id="a034d997a1e7a0b2b664a4357bcccd256"></a>
  477. <div class="memitem">
  478. <div class="memproto">
  479. <table class="memname">
  480. <tr>
  481. <td class="memname">bool FatVolume::init </td>
  482. <td>(</td>
  483. <td class="paramtype">uint8_t&#160;</td>
  484. <td class="paramname"><em>part</em></td><td>)</td>
  485. <td></td>
  486. </tr>
  487. </table>
  488. </div><div class="memdoc">
  489. <p>Initialize a FAT volume.</p>
  490. <dl class="params"><dt>Parameters</dt><dd>
  491. <table class="params">
  492. <tr><td class="paramdir">[in]</td><td class="paramname">part</td><td>The partition to be used. Legal values for <em>part</em> are 1-4 to use the corresponding partition on a device formatted with a MBR, Master Boot Record, or zero if the device is formatted as a super floppy with the FAT boot sector in block zero.</td></tr>
  493. </table>
  494. </dd>
  495. </dl>
  496. <dl class="section return"><dt>Returns</dt><dd>The value true is returned for success and the value false is returned for failure. </dd></dl>
  497. </div>
  498. </div>
  499. <a class="anchor" id="ab2d483670a0a6a6a4754b23614fe11bc"></a>
  500. <div class="memitem">
  501. <div class="memproto">
  502. <table class="mlabels">
  503. <tr>
  504. <td class="mlabels-left">
  505. <table class="memname">
  506. <tr>
  507. <td class="memname">uint16_t FatVolume::rootDirEntryCount </td>
  508. <td>(</td>
  509. <td class="paramname"></td><td>)</td>
  510. <td> const</td>
  511. </tr>
  512. </table>
  513. </td>
  514. <td class="mlabels-right">
  515. <span class="mlabels"><span class="mlabel">inline</span></span> </td>
  516. </tr>
  517. </table>
  518. </div><div class="memdoc">
  519. <dl class="section return"><dt>Returns</dt><dd>The number of entries in the root directory for FAT16 volumes. </dd></dl>
  520. </div>
  521. </div>
  522. <a class="anchor" id="ae9363ebbbae90e895ea56e8fa3f60c13"></a>
  523. <div class="memitem">
  524. <div class="memproto">
  525. <table class="mlabels">
  526. <tr>
  527. <td class="mlabels-left">
  528. <table class="memname">
  529. <tr>
  530. <td class="memname">uint32_t FatVolume::rootDirStart </td>
  531. <td>(</td>
  532. <td class="paramname"></td><td>)</td>
  533. <td> const</td>
  534. </tr>
  535. </table>
  536. </td>
  537. <td class="mlabels-right">
  538. <span class="mlabels"><span class="mlabel">inline</span></span> </td>
  539. </tr>
  540. </table>
  541. </div><div class="memdoc">
  542. <dl class="section return"><dt>Returns</dt><dd>The logical block number for the start of the root directory on FAT16 volumes or the first cluster number on FAT32 volumes. </dd></dl>
  543. </div>
  544. </div>
  545. <a class="anchor" id="a07bc98088ce4a9c725700899c184f7fc"></a>
  546. <div class="memitem">
  547. <div class="memproto">
  548. <table class="mlabels">
  549. <tr>
  550. <td class="mlabels-left">
  551. <table class="memname">
  552. <tr>
  553. <td class="memname">uint32_t FatVolume::volumeBlockCount </td>
  554. <td>(</td>
  555. <td class="paramname"></td><td>)</td>
  556. <td> const</td>
  557. </tr>
  558. </table>
  559. </td>
  560. <td class="mlabels-right">
  561. <span class="mlabels"><span class="mlabel">inline</span></span> </td>
  562. </tr>
  563. </table>
  564. </div><div class="memdoc">
  565. <dl class="section return"><dt>Returns</dt><dd>The number of blocks in the volume </dd></dl>
  566. </div>
  567. </div>
  568. <a class="anchor" id="a8088aa74cf601996905dadd2eea6966c"></a>
  569. <div class="memitem">
  570. <div class="memproto">
  571. <table class="memname">
  572. <tr>
  573. <td class="memname">bool FatVolume::wipe </td>
  574. <td>(</td>
  575. <td class="paramtype"><a class="el" href="_fat_volume_8h.html#ac62f6449331cfe1a71f29be30efe7890">print_t</a> *&#160;</td>
  576. <td class="paramname"><em>pr</em> = <code>0</code></td><td>)</td>
  577. <td></td>
  578. </tr>
  579. </table>
  580. </div><div class="memdoc">
  581. <p>Wipe all data from the volume. </p><dl class="params"><dt>Parameters</dt><dd>
  582. <table class="params">
  583. <tr><td class="paramdir">[in]</td><td class="paramname">pr</td><td>print stream for status dots. </td></tr>
  584. </table>
  585. </dd>
  586. </dl>
  587. <dl class="section return"><dt>Returns</dt><dd>true for success else false. </dd></dl>
  588. </div>
  589. </div>
  590. <hr/>The documentation for this class was generated from the following files:<ul>
  591. <li>Arduino/libraries/SdFat/src/FatLib/<a class="el" href="_fat_volume_8h.html">FatVolume.h</a></li>
  592. <li>Arduino/libraries/SdFat/src/FatLib/FatVolume.cpp</li>
  593. </ul>
  594. </div><!-- contents -->
  595. <!-- start footer part -->
  596. <hr class="footer"/><address class="footer"><small>
  597. Generated on Fri Aug 19 2016 08:28:00 for SdFat by &#160;<a href="http://www.doxygen.org/index.html">
  598. <img class="footer" src="doxygen.png" alt="doxygen"/>
  599. </a> 1.8.10
  600. </small></address>
  601. </body>
  602. </html>