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author | inmarket <andrewh@inmarket.com.au> | 2014-08-15 02:22:02 +1000 |
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committer | inmarket <andrewh@inmarket.com.au> | 2014-08-15 02:22:02 +1000 |
commit | 75e1e7a5e26491e942fb2b25f518d8e2e3112721 (patch) | |
tree | 970754edda05d38bce1f85492868eca717820b99 /3rdparty/petitfs-0.03/doc/pf/dreadp.html | |
parent | 9b570be049bf656489bdce823f6f04beb80f053d (diff) | |
download | uGFX-75e1e7a5e26491e942fb2b25f518d8e2e3112721.tar.gz uGFX-75e1e7a5e26491e942fb2b25f518d8e2e3112721.tar.bz2 uGFX-75e1e7a5e26491e942fb2b25f518d8e2e3112721.zip |
Add GFILE support for PetitFS (a very tiny FAT implementation)
Diffstat (limited to '3rdparty/petitfs-0.03/doc/pf/dreadp.html')
-rw-r--r-- | 3rdparty/petitfs-0.03/doc/pf/dreadp.html | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/3rdparty/petitfs-0.03/doc/pf/dreadp.html b/3rdparty/petitfs-0.03/doc/pf/dreadp.html new file mode 100644 index 00000000..dd97561e --- /dev/null +++ b/3rdparty/petitfs-0.03/doc/pf/dreadp.html @@ -0,0 +1,59 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<html lang="en"> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> +<meta http-equiv="Content-Style-Type" content="text/css"> +<link rel="up" title="Petit FatFs" href="../00index_p.html"> +<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default"> +<link rel="stylesheet" href="../css_p.css" type="text/css" media="screen" title="ELM Default"> +<title>Petit FatFs - disk_readp</title> +</head> + +<body> + +<div class="para"> +<h2>disk_readp</h2> +<p>The disk_readp function reads a partial sector of the device.</p> +<pre> +DRESULT disk_readp ( + BYTE* <span class="arg">buff</span>, <span class="c">/* [OUT] Pointer to the read buffer */</span> + DWORD <span class="arg">sector</span>, <span class="c">/* [IN] Sector number */</span> + UINT <span class="arg">offset</span>, <span class="c">/* [IN] Byte offset in the sector to start to read */</span> + UINT <span class="arg">count</span> <span class="c">/* [IN] Number of bytes to read */</span> +); +</pre> +</div> + +<div class="para"> +<h4>Parameters</h4> +<dl class="par"> +<dt>buff</dt> +<dd>Pointer to the read buffer to store the read data. If a NULL is given, read bytes will be forwarded to the outgoing stream instead of the memory.</dd> +<dt>sector</dt> +<dd>Specifies the sector number to be read in logical block address (LBA).</dd> +<dt>offset</dt> +<dd>Specifies the byte offset in the sector to start to read. The value can be 0 to 511.</dd> +<dt>count</dt> +<dd>Specifies number of bytes to read. The value can be 0 to 512 and <tt class="arg">offset</tt> + <tt class="arg">count</tt> must not exceed 512.</dd> +</dl> +</div> + + +<div class="para"> +<h4>Return Value</h4> +<dl class="ret"> +<dt>RES_OK (0)</dt> +<dd>The function succeeded.</dd> +<dt>RES_ERROR</dt> +<dd>Any hard error occured during the disk read operation and could not recover it.</dd> +<dt>RES_PARERR</dt> +<dd>Invalid parameter.</dd> +<dt>RES_NOTRDY</dt> +<dd>The device has not been initialized.</dd> +</dl> +</div> + + +<p class="foot"><a href="../00index_p.html">Return</a></p> +</body> +</html> |