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368 lines
20 KiB
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<title>CTHN.de - LEDCube - commandline client: opendevice.c File Reference</title>
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<div id="projectname">CTHN.de - LEDCube - commandline client</div>
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</td>
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<div class="header">
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<div class="summary">
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<a href="#define-members">Defines</a> |
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<a href="#func-members">Functions</a> </div>
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<div class="headertitle">
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<div class="title">opendevice.c File Reference</div> </div>
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</div>
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<div class="contents">
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<div class="textblock"><code>#include <stdio.h></code><br/>
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<code>#include "<a class="el" href="opendevice_8h_source.html">opendevice.h</a>"</code><br/>
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</div><div class="textblock"><div class="dynheader">
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Include dependency graph for opendevice.c:</div>
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<div class="dyncontent">
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<div class="center"><img src="opendevice_8c__incl.png" border="0" usemap="#opendevice_8c" alt=""/></div>
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<map name="opendevice_8c" id="opendevice_8c">
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<area shape="rect" id="node5" href="opendevice_8h.html" title="opendevice.h" alt="" coords="71,83,169,112"/></map>
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</div>
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</div><table class="memberdecls">
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<tr><td colspan="2"><h2><a name="define-members"></a>
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Defines</h2></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="opendevice_8c.html#a5f48dcc6eee4e04499a8b2a5e8f56b91">MATCH_SUCCESS</a>   1</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="opendevice_8c.html#ac8ad57fb87ae8e10684a7b910e92bba6">MATCH_FAILED</a>   0</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="opendevice_8c.html#abd0788cdedf1a166ae08894f36e3b2e5">MATCH_ABORT</a>   -1</td></tr>
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<tr><td colspan="2"><h2><a name="func-members"></a>
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Functions</h2></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="opendevice_8c.html#a75b5f0b18368de18125662f87524b5b0">usbGetStringAscii</a> (usb_dev_handle *dev, int index, char *buf, int buflen)</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="opendevice_8c.html#acea645564f1dfcd741ff20038d811ac5">usbOpenDevice</a> (usb_dev_handle **device, int vendorID, char *vendorNamePattern, int productID, char *productNamePattern, char *serialNamePattern, FILE *printMatchingDevicesFp, FILE *warningsFp)</td></tr>
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</table>
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<hr/><h2>Define Documentation</h2>
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<a class="anchor" id="abd0788cdedf1a166ae08894f36e3b2e5"></a><!-- doxytag: member="opendevice.c::MATCH_ABORT" ref="abd0788cdedf1a166ae08894f36e3b2e5" args="" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">#define MATCH_ABORT   -1</td>
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</tr>
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</table>
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</div>
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<div class="memdoc">
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</div>
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</div>
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<a class="anchor" id="ac8ad57fb87ae8e10684a7b910e92bba6"></a><!-- doxytag: member="opendevice.c::MATCH_FAILED" ref="ac8ad57fb87ae8e10684a7b910e92bba6" args="" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">#define MATCH_FAILED   0</td>
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</tr>
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</table>
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</div>
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<div class="memdoc">
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</div>
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</div>
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<a class="anchor" id="a5f48dcc6eee4e04499a8b2a5e8f56b91"></a><!-- doxytag: member="opendevice.c::MATCH_SUCCESS" ref="a5f48dcc6eee4e04499a8b2a5e8f56b91" args="" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">#define MATCH_SUCCESS   1</td>
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</tr>
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</table>
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</div>
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<div class="memdoc">
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</div>
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</div>
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<hr/><h2>Function Documentation</h2>
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<a class="anchor" id="a75b5f0b18368de18125662f87524b5b0"></a><!-- doxytag: member="opendevice.c::usbGetStringAscii" ref="a75b5f0b18368de18125662f87524b5b0" args="(usb_dev_handle *dev, int index, char *buf, int buflen)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">int usbGetStringAscii </td>
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<td>(</td>
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<td class="paramtype">usb_dev_handle * </td>
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<td class="paramname"><em>dev</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">int </td>
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<td class="paramname"><em>index</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">char * </td>
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<td class="paramname"><em>buf</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">int </td>
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<td class="paramname"><em>buflen</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</tr>
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</table>
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</div>
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<div class="memdoc">
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<div class="fragment"><pre class="fragment">{
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<span class="keywordtype">char</span> buffer[256];
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<span class="keywordtype">int</span> rval, i;
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<span class="keywordflow">if</span>((rval = usb_get_string_simple(dev, index, buf, buflen)) >= 0) <span class="comment">/* use libusb version if it works */</span>
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<span class="keywordflow">return</span> rval;
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<span class="keywordflow">if</span>((rval = usb_control_msg(dev, USB_ENDPOINT_IN, USB_REQ_GET_DESCRIPTOR, (USB_DT_STRING << 8) + index, 0x0409, buffer, <span class="keyword">sizeof</span>(buffer), 5000)) < 0)
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<span class="keywordflow">return</span> rval;
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<span class="keywordflow">if</span>(buffer[1] != USB_DT_STRING){
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*buf = 0;
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<span class="keywordflow">return</span> 0;
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}
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<span class="keywordflow">if</span>((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>)buffer[0] < rval)
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rval = (<span class="keywordtype">unsigned</span> char)buffer[0];
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rval /= 2;
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<span class="comment">/* lossy conversion to ISO Latin1: */</span>
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<span class="keywordflow">for</span>(i=1;i<rval;i++){
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<span class="keywordflow">if</span>(i > buflen) <span class="comment">/* destination buffer overflow */</span>
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<span class="keywordflow">break</span>;
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buf[i-1] = buffer[2 * i];
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<span class="keywordflow">if</span>(buffer[2 * i + 1] != 0) <span class="comment">/* outside of ISO Latin1 range */</span>
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buf[i-1] = <span class="charliteral">'?'</span>;
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}
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buf[i-1] = 0;
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<span class="keywordflow">return</span> i-1;
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}
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</pre></div>
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</div>
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</div>
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<a class="anchor" id="acea645564f1dfcd741ff20038d811ac5"></a><!-- doxytag: member="opendevice.c::usbOpenDevice" ref="acea645564f1dfcd741ff20038d811ac5" args="(usb_dev_handle **device, int vendorID, char *vendorNamePattern, int productID, char *productNamePattern, char *serialNamePattern, FILE *printMatchingDevicesFp, FILE *warningsFp)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">int usbOpenDevice </td>
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<td>(</td>
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<td class="paramtype">usb_dev_handle ** </td>
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<td class="paramname"><em>device</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">int </td>
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<td class="paramname"><em>vendorID</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">char * </td>
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<td class="paramname"><em>vendorNamePattern</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">int </td>
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<td class="paramname"><em>productID</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">char * </td>
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<td class="paramname"><em>productNamePattern</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">char * </td>
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<td class="paramname"><em>serialNamePattern</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">FILE * </td>
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<td class="paramname"><em>printMatchingDevicesFp</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">FILE * </td>
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<td class="paramname"><em>warningsFp</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</tr>
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</table>
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</div>
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<div class="memdoc">
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<div class="fragment"><pre class="fragment">{
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<span class="keyword">struct </span>usb_bus *bus;
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<span class="keyword">struct </span>usb_device *dev;
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usb_dev_handle *handle = NULL;
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<span class="keywordtype">int</span> errorCode = <a class="code" href="opendevice_8h.html#aeffd7f45947b1e146f8dfc1c6d94704e">USBOPEN_ERR_NOTFOUND</a>;
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usb_find_busses();
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usb_find_devices();
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<span class="keywordflow">for</span>(bus = usb_get_busses(); bus; bus = bus->next){
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<span class="keywordflow">for</span>(dev = bus->devices; dev; dev = dev->next){ <span class="comment">/* iterate over all devices on all busses */</span>
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<span class="keywordflow">if</span>((vendorID == 0 || dev->descriptor.idVendor == vendorID)
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&& (productID == 0 || dev->descriptor.idProduct == productID)){
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<span class="keywordtype">char</span> vendor[256], product[256], serial[256];
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<span class="keywordtype">int</span> len;
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handle = usb_open(dev); <span class="comment">/* we need to open the device in order to query strings */</span>
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<span class="keywordflow">if</span>(!handle){
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errorCode = <a class="code" href="opendevice_8h.html#a7740d6b3c1581a07523be3b3d5039c95">USBOPEN_ERR_ACCESS</a>;
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<span class="keywordflow">if</span>(warningsFp != NULL)
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fprintf(warningsFp, <span class="stringliteral">"Warning: cannot open VID=0x%04x PID=0x%04x: %s\n"</span>, dev->descriptor.idVendor, dev->descriptor.idProduct, usb_strerror());
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<span class="keywordflow">continue</span>;
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}
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<span class="comment">/* now check whether the names match: */</span>
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len = vendor[0] = 0;
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<span class="keywordflow">if</span>(dev->descriptor.iManufacturer > 0){
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len = <a class="code" href="opendevice_8c.html#a75b5f0b18368de18125662f87524b5b0">usbGetStringAscii</a>(handle, dev->descriptor.iManufacturer, vendor, <span class="keyword">sizeof</span>(vendor));
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}
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<span class="keywordflow">if</span>(len < 0){
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errorCode = <a class="code" href="opendevice_8h.html#a7740d6b3c1581a07523be3b3d5039c95">USBOPEN_ERR_ACCESS</a>;
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<span class="keywordflow">if</span>(warningsFp != NULL)
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fprintf(warningsFp, <span class="stringliteral">"Warning: cannot query manufacturer for VID=0x%04x PID=0x%04x: %s\n"</span>, dev->descriptor.idVendor, dev->descriptor.idProduct, usb_strerror());
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}<span class="keywordflow">else</span>{
|
||
|
|
errorCode = <a class="code" href="opendevice_8h.html#aeffd7f45947b1e146f8dfc1c6d94704e">USBOPEN_ERR_NOTFOUND</a>;
|
||
|
|
<span class="comment">/* printf("seen device from vendor ->%s<-\n", vendor); */</span>
|
||
|
|
<span class="keywordflow">if</span>(shellStyleMatch(vendor, vendorNamePattern)){
|
||
|
|
len = product[0] = 0;
|
||
|
|
<span class="keywordflow">if</span>(dev->descriptor.iProduct > 0){
|
||
|
|
len = <a class="code" href="opendevice_8c.html#a75b5f0b18368de18125662f87524b5b0">usbGetStringAscii</a>(handle, dev->descriptor.iProduct, product, <span class="keyword">sizeof</span>(product));
|
||
|
|
}
|
||
|
|
<span class="keywordflow">if</span>(len < 0){
|
||
|
|
errorCode = <a class="code" href="opendevice_8h.html#a7740d6b3c1581a07523be3b3d5039c95">USBOPEN_ERR_ACCESS</a>;
|
||
|
|
<span class="keywordflow">if</span>(warningsFp != NULL)
|
||
|
|
fprintf(warningsFp, <span class="stringliteral">"Warning: cannot query product for VID=0x%04x PID=0x%04x: %s\n"</span>, dev->descriptor.idVendor, dev->descriptor.idProduct, usb_strerror());
|
||
|
|
}<span class="keywordflow">else</span>{
|
||
|
|
errorCode = <a class="code" href="opendevice_8h.html#aeffd7f45947b1e146f8dfc1c6d94704e">USBOPEN_ERR_NOTFOUND</a>;
|
||
|
|
<span class="comment">/* printf("seen product ->%s<-\n", product); */</span>
|
||
|
|
<span class="keywordflow">if</span>(shellStyleMatch(product, productNamePattern)){
|
||
|
|
len = serial[0] = 0;
|
||
|
|
<span class="keywordflow">if</span>(dev->descriptor.iSerialNumber > 0){
|
||
|
|
len = <a class="code" href="opendevice_8c.html#a75b5f0b18368de18125662f87524b5b0">usbGetStringAscii</a>(handle, dev->descriptor.iSerialNumber, serial, <span class="keyword">sizeof</span>(serial));
|
||
|
|
}
|
||
|
|
<span class="keywordflow">if</span>(len < 0){
|
||
|
|
errorCode = <a class="code" href="opendevice_8h.html#a7740d6b3c1581a07523be3b3d5039c95">USBOPEN_ERR_ACCESS</a>;
|
||
|
|
<span class="keywordflow">if</span>(warningsFp != NULL)
|
||
|
|
fprintf(warningsFp, <span class="stringliteral">"Warning: cannot query serial for VID=0x%04x PID=0x%04x: %s\n"</span>, dev->descriptor.idVendor, dev->descriptor.idProduct, usb_strerror());
|
||
|
|
}
|
||
|
|
<span class="keywordflow">if</span>(shellStyleMatch(serial, serialNamePattern)){
|
||
|
|
<span class="keywordflow">if</span>(printMatchingDevicesFp != NULL){
|
||
|
|
<span class="keywordflow">if</span>(serial[0] == 0){
|
||
|
|
fprintf(printMatchingDevicesFp, <span class="stringliteral">"VID=0x%04x PID=0x%04x vendor=\"%s\" product=\"%s\"\n"</span>, dev->descriptor.idVendor, dev->descriptor.idProduct, vendor, product);
|
||
|
|
}<span class="keywordflow">else</span>{
|
||
|
|
fprintf(printMatchingDevicesFp, <span class="stringliteral">"VID=0x%04x PID=0x%04x vendor=\"%s\" product=\"%s\" serial=\"%s\"\n"</span>, dev->descriptor.idVendor, dev->descriptor.idProduct, vendor, product, serial);
|
||
|
|
}
|
||
|
|
}<span class="keywordflow">else</span>{
|
||
|
|
<span class="keywordflow">break</span>;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
usb_close(handle);
|
||
|
|
handle = NULL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
<span class="keywordflow">if</span>(handle) <span class="comment">/* we have found a deice */</span>
|
||
|
|
<span class="keywordflow">break</span>;
|
||
|
|
}
|
||
|
|
<span class="keywordflow">if</span>(handle != NULL){
|
||
|
|
errorCode = 0;
|
||
|
|
*device = handle;
|
||
|
|
}
|
||
|
|
<span class="keywordflow">if</span>(printMatchingDevicesFp != NULL) <span class="comment">/* never return an error for listing only */</span>
|
||
|
|
errorCode = 0;
|
||
|
|
<span class="keywordflow">return</span> errorCode;
|
||
|
|
}
|
||
|
|
</pre></div>
|
||
|
|
<p><div class="dynheader">
|
||
|
|
Here is the call graph for this function:</div>
|
||
|
|
<div class="dyncontent">
|
||
|
|
<div class="center"><img src="opendevice_8c_acea645564f1dfcd741ff20038d811ac5_cgraph.png" border="0" usemap="#opendevice_8c_acea645564f1dfcd741ff20038d811ac5_cgraph" alt=""/></div>
|
||
|
|
<map name="opendevice_8c_acea645564f1dfcd741ff20038d811ac5_cgraph" id="opendevice_8c_acea645564f1dfcd741ff20038d811ac5_cgraph">
|
||
|
|
<area shape="rect" id="node3" href="opendevice_8c.html#a75b5f0b18368de18125662f87524b5b0" title="usbGetStringAscii" alt="" coords="169,5,295,35"/></map>
|
||
|
|
</div>
|
||
|
|
</p>
|
||
|
|
|
||
|
|
</div>
|
||
|
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<hr class="footer"/><address class="footer"><small>Generated on Sun Dec 25 2011 13:37:31 for CTHN.de - LEDCube - commandline client by 
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<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.4 </small></address>
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