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<h1>usb-common.c File Reference</h1><code>#include "<a class="el" href="usb-private_8h-source.html">usb-private.h</a>"</code><br>
<code>#include "<a class="el" href="usb-mouse_8h-source.html">usb-mouse.h</a>"</code><br>
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<tr><td colspan=2><br><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="usb-common_8c.html#a21">usbRead</a> (DevicePtr pDev, MOTIONPROC motion, ENQUEUEPROC enqueue, int minButton, BLOCK block)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="usb-common_8c.html#a23">usbInit</a> (DevicePtr pDev, usbType type)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="usb-common_8c.html#a24">usbOff</a> (DevicePtr pDev)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>pointer </td><td class="memItemRight" valign=bottom><a class="el" href="usb-common_8c.html#a25">usbCreatePrivate</a> (DeviceIntPtr pDevice)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="usb-common_8c.html#a26">usbDestroyPrivate</a> (pointer priv)</td></tr>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
Routines that are common between #usb-keyboard.c, #usb-mouse.c, and #usb-other.c<hr><h2>Function Documentation</h2>
<a class="anchor" name="a25" doxytag="usb-common.c::usbCreatePrivate" ></a><p>
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<td class="md" nowrap valign="top"> pointer usbCreatePrivate </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">DeviceIntPtr </td>
<td class="mdname1" valign="top" nowrap> <em>pDevice</em> </td>
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Create a private structure for use within this file. </td>
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<a class="anchor" name="a26" doxytag="usb-common.c::usbDestroyPrivate" ></a><p>
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<td class="md" nowrap valign="top"> void usbDestroyPrivate </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">pointer </td>
<td class="mdname1" valign="top" nowrap> <em>priv</em> </td>
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Destroy a private structure. </td>
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<a class="anchor" name="a23" doxytag="usb-common.c::usbInit" ></a><p>
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<td class="md" nowrap valign="top"> void usbInit </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">DevicePtr </td>
<td class="mdname" nowrap> <em>pDev</em>, </td>
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<td class="md" nowrap>usbType </td>
<td class="mdname" nowrap> <em>type</em></td>
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<td class="md">) </td>
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Initialized <em>pDev</em> as a <em>usbMouse</em>, <em>usbKeyboard</em>, or <em>usbOther</em> device. </td>
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<a class="anchor" name="a24" doxytag="usb-common.c::usbOff" ></a><p>
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<td class="md" nowrap valign="top"> void usbOff </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">DevicePtr </td>
<td class="mdname1" valign="top" nowrap> <em>pDev</em> </td>
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Turn <em>pDev</em> off (i.e., stop taking input from <em>pDev</em>). </td>
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<a class="anchor" name="a21" doxytag="usb-common.c::usbRead" ></a><p>
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<td class="md" nowrap valign="top"> void usbRead </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">DevicePtr </td>
<td class="mdname" nowrap> <em>pDev</em>, </td>
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<td class="md" nowrap>MOTIONPROC </td>
<td class="mdname" nowrap> <em>motion</em>, </td>
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<td class="md" nowrap>ENQUEUEPROC </td>
<td class="mdname" nowrap> <em>enqueue</em>, </td>
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<td class="md" nowrap>int </td>
<td class="mdname" nowrap> <em>minButton</em>, </td>
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<td class="md" nowrap>BLOCK </td>
<td class="mdname" nowrap> <em>block</em></td>
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<td class="md">) </td>
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Read an event from the <em>pDev</em> device. If the event is a motion event, enqueue it with the <em>motion</em> function. Otherwise, enqueue the event with the <em>enqueue</em> function. The <em>block</em> type is passed to the functions so that they may block SIGIO handling as appropriate to the caller of this function.<p>
Since USB devices return EV_KEY events for buttons and keys, <em>minButton</em> is used to decide if a Button or Key event should be queued. </td>
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