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linux下的串口通讯程序.用于开发串口程序很方便

<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classWin__QextSerialPort.html#3f96ad148dd04e48d2251d85866f2bb7">Win_QextSerialPort</a> ()</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="elRef" doxygen="qiodevice.tag:http://doc.trolltech.com/" href="http://doc.trolltech.com/qiodevice.html#write-2">write</a> (const QByteArray &amp;byteArray)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="elRef" doxygen="qiodevice.tag:http://doc.trolltech.com/" href="http://doc.trolltech.com/qiodevice.html#write">write</a> (const char *data, qint64 maxSize)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classWin__QextSerialPort.html#6700be65cee973991ccf77a6afdf131a">~Win_QextSerialPort</a> ()</td></tr>

<tr><td colspan="2"><br><h2>Protected Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual qint64&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classWin__QextSerialPort.html#39d6d73caac12dc1ca58d88b6e08dcb9">readData</a> (char *data, qint64 maxSize)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual qint64&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classWin__QextSerialPort.html#be7e2c0f77000edfcf814fccae66fcd9">writeData</a> (const char *data, qint64 maxSize)</td></tr>

<tr><td colspan="2"><br><h2>Protected Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">ulong&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQextSerialBase.html#31816951ba89902fa1dfdb6f18b80f41">lastErr</a></td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">QString&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQextSerialBase.html#7459f3818391091877c88595a48a950a">port</a></td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="structPortSettings.html">PortSettings</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQextSerialBase.html#2d796e3080f78ff63e821f528439db57">Settings</a></td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">COMMCONFIG&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classWin__QextSerialPort.html#a51a3047aa92b01531219215bb415dbb">Win_CommConfig</a></td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">COMMTIMEOUTS&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classWin__QextSerialPort.html#a3909dbcf96493e43d79e075e626d68b">Win_CommTimeouts</a></td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">HANDLE&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classWin__QextSerialPort.html#f6dae6bb1c6b51e766e551bc11f1721d">Win_Handle</a></td></tr>

<tr><td colspan="2"><br><h2>Static Protected Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static QMutex *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQextSerialBase.html#f3d14f4614db4415c5f89746633cf197">mutex</a> = NULL</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">static ulong&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQextSerialBase.html#e5df0cdbbf84781c17f02b8dbc99c93a">refCount</a> = 0</td></tr>

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<hr><a name="_details"></a><h2>Detailed Description</h2>
<dl compact><dt><b>Version:</b></dt><dd>1.0.0 </dd></dl>
<dl compact><dt><b>Author:</b></dt><dd>Stefan Sander</dd></dl>
A cross-platform serial port class. This class encapsulates the Windows portion of <a class="el" href="classQextSerialPort.html">QextSerialPort</a>. The user will be notified of errors and possible portability conflicts at run-time by default - this behavior can be turned off by defining _TTY_NOWARN_ (to turn off all warnings) or _TTY_NOWARN_PORT_ (to turn off portability warnings) in the project. Note that defining _TTY_NOWARN_ also defines _TTY_NOWARN_PORT_.<p>
<dl compact><dt><b>Note:</b></dt><dd>On Windows NT/2000/XP this class uses Win32 serial port functions by default. The user may select POSIX behavior under NT, 2000, or XP ONLY by defining _TTY_POSIX_ in the project. I can make no guarantees as to the quality of POSIX support under NT/2000 however. </dd></dl>

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<hr><h2>Constructor &amp; Destructor Documentation</h2>
<a class="anchor" name="3f96ad148dd04e48d2251d85866f2bb7"></a><!-- doxytag: member="Win_QextSerialPort::Win_QextSerialPort" ref="3f96ad148dd04e48d2251d85866f2bb7" args="()" -->
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Default constructor. Note that the name of the device used by a <a class="el" href="classWin__QextSerialPort.html">Win_QextSerialPort</a> constructed with this constructor will be determined by defined constants, or lack thereof - the default behavior is the same as _TTY_LINUX_. Possible naming conventions and their associated constants are:<p>
<div class="fragment"><pre class="fragment">Constant         Used By         Naming Convention
----------       -------------   ------------------------
_TTY_WIN_        Windows         COM1, COM2
_TTY_IRIX_       SGI/IRIX        /dev/ttyf1, /dev/ttyf2
_TTY_HPUX_       HP-UX           /dev/tty1p0, /dev/tty2p0
_TTY_SUN_        SunOS/Solaris   /dev/ttya, /dev/ttyb
_TTY_DIGITAL_    Digital UNIX    /dev/tty01, /dev/tty02
_TTY_FREEBSD_    FreeBSD         /dev/ttyd0, /dev/ttyd1
_TTY_LINUX_      Linux           /dev/ttyS0, /dev/ttyS1
&lt;none&gt;           Linux           /dev/ttyS0, /dev/ttyS1
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This constructor associates the object with the first port on the system, e.g. COM1 for Windows platforms. See the other constructor if you need a port other than the first. <div class="fragment"><pre class="fragment"><a name="l00047"></a>00047                                       :<a class="code" href="classQextSerialBase.html#ba0fc6d8b5c675c91ebff90fc6415748">QextSerialBase</a>() {
<a name="l00048"></a>00048     <a class="code" href="classWin__QextSerialPort.html#f6dae6bb1c6b51e766e551bc11f1721d">Win_Handle</a>=INVALID_HANDLE_VALUE;
<a name="l00049"></a>00049 }
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<a class="anchor" name="a2968038a33b91c0f21e43f2a267a35c"></a><!-- doxytag: member="Win_QextSerialPort::Win_QextSerialPort" ref="a2968038a33b91c0f21e43f2a267a35c" args="(Win_QextSerialPort const &amp;s)" -->
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          <td class="paramname"> <em>s</em>          </td>
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<a class="el" href="classWin__QextSerialPort.html#a2968038a33b91c0f21e43f2a267a35c">Win_QextSerialPort::Win_QextSerialPort(const Win_QextSerialPort&amp;)</a> Copy constructor. <div class="fragment"><pre class="fragment"><a name="l00054"></a>00054                                                                  :<a class="code" href="classQextSerialBase.html#ba0fc6d8b5c675c91ebff90fc6415748">QextSerialBase</a>(s.port) {
<a name="l00055"></a>00055     <a class="code" href="classWin__QextSerialPort.html#f6dae6bb1c6b51e766e551bc11f1721d">Win_Handle</a>=INVALID_HANDLE_VALUE;
<a name="l00056"></a>00056     <a class="codeRef" doxygen="qiodevice.tag:http://doc.trolltech.com/" href="http://doc.trolltech.com/qiodevice.html#setOpenMode">setOpenMode</a>(s.openMode());
<a name="l00057"></a>00057     <a class="code" href="classQextSerialBase.html#31816951ba89902fa1dfdb6f18b80f41">lastErr</a>=s.lastErr;
<a name="l00058"></a>00058     <a class="code" href="classQextSerialBase.html#7459f3818391091877c88595a48a950a">port</a> = s.port;
<a name="l00059"></a>00059     <a class="code" href="classQextSerialBase.html#2d796e3080f78ff63e821f528439db57">Settings</a>.<a class="code" href="structPortSettings.html#10720f6217b8d8b90c326ea030c43e30">FlowControl</a>=s.Settings.FlowControl;
<a name="l00060"></a>00060     <a class="code" href="classQextSerialBase.html#2d796e3080f78ff63e821f528439db57">Settings</a>.<a class="code" href="structPortSettings.html#8d0bfbdcb40e9e3919e3f9829ae72582">Parity</a>=s.Settings.Parity;
<a name="l00061"></a>00061     <a class="code" href="classQextSerialBase.html#2d796e3080f78ff63e821f528439db57">Settings</a>.<a class="code" href="structPortSettings.html#9ec9d5a304b2ac8d3a100d07bce7c0b6">DataBits</a>=s.Settings.DataBits;
<a name="l00062"></a>00062     <a class="code" href="classQextSerialBase.html#2d796e3080f78ff63e821f528439db57">Settings</a>.<a class="code" href="structPortSettings.html#0752c70eb7e12f02ddf59739a056b04c">StopBits</a>=s.Settings.StopBits;
<a name="l00063"></a>00063     <a class="code" href="classQextSerialBase.html#2d796e3080f78ff63e821f528439db57">Settings</a>.<a class="code" href="structPortSettings.html#be617f3545d6be4587e1a0700a0b0e5b">BaudRate</a>=s.Settings.BaudRate;
<a name="l00064"></a>00064     <a class="code" href="classWin__QextSerialPort.html#f6dae6bb1c6b51e766e551bc11f1721d">Win_Handle</a>=s.Win_Handle;
<a name="l00065"></a>00065     memcpy(&amp;<a class="code" href="classWin__QextSerialPort.html#a51a3047aa92b01531219215bb415dbb">Win_CommConfig</a>, &amp;s.Win_CommConfig, <span class="keyword">sizeof</span>(COMMCONFIG));
<a name="l00066"></a>00066     memcpy(&amp;<a class="code" href="classWin__QextSerialPort.html#a3909dbcf96493e43d79e075e626d68b">Win_CommTimeouts</a>, &amp;s.Win_CommTimeouts, <span class="keyword">sizeof</span>(COMMTIMEOUTS));
<a name="l00067"></a>00067 }
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<a class="anchor" name="b88b54d3b5d528b75b7a5fbfe83ca673"></a><!-- doxytag: member="Win_QextSerialPort::Win_QextSerialPort" ref="b88b54d3b5d528b75b7a5fbfe83ca673" args="(const QString &amp;name)" -->
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          <td class="paramname"> <em>name</em>          </td>
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Constructs a serial port attached to the port specified by devName. devName is the name of the device, which is windowsystem-specific, e.g."COM2" or "/dev/ttyS0". <div class="fragment"><pre class="fragment"><a name="l00075"></a>00075                                                           :<a class="code" href="classQextSerialBase.html#ba0fc6d8b5c675c91ebff90fc6415748">QextSerialBase</a>(name) {
<a name="l00076"></a>00076     <a class="code" href="classWin__QextSerialPort.html#f6dae6bb1c6b51e766e551bc11f1721d">Win_Handle</a>=INVALID_HANDLE_VALUE;
<a name="l00077"></a>00077 }
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<a class="anchor" name="8eebc2f042fe2b9b782fcac8cee7689c"></a><!-- doxytag: member="Win_QextSerialPort::Win_QextSerialPort" ref="8eebc2f042fe2b9b782fcac8cee7689c" args="(const PortSettings &amp;settings)" -->
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Constructs a port with default name and specified settings. <div class="fragment"><pre class="fragment"><a name="l00083"></a>00083                                                                    {
<a name="l00084"></a>00084     <a class="code" href="classWin__QextSerialPort.html#f6dae6bb1c6b51e766e551bc11f1721d">Win_Handle</a>=INVALID_HANDLE_VALUE;
<a name="l00085"></a>00085     <a class="code" href="classWin__QextSerialPort.html#a5578e4862e3743da2a923f082f821d6">setBaudRate</a>(settings.<a class="code" href="structPortSettings.html#be617f3545d6be4587e1a0700a0b0e5b">BaudRate</a>);
<a name="l00086"></a>00086     <a class="code" href="classWin__QextSerialPort.html#33168191b03365b429b8413f6286f4c8">setDataBits</a>(settings.<a class="code" href="structPortSettings.html#9ec9d5a304b2ac8d3a100d07bce7c0b6">DataBits</a>);
<a name="l00087"></a>00087     <a class="code" href="classWin__QextSerialPort.html#67fc083cb06b6b1872fc4360cd599821">setStopBits</a>(settings.<a class="code" href="structPortSettings.html#0752c70eb7e12f02ddf59739a056b04c">StopBits</a>);
<a name="l00088"></a>00088     <a class="code" href="classWin__QextSerialPort.html#bae5c88ee4e09908766febede36a682a">setParity</a>(settings.<a class="code" href="structPortSettings.html#8d0bfbdcb40e9e3919e3f9829ae72582">Parity</a>);
<a name="l00089"></a>00089     <a class="code" href="classWin__QextSerialPort.html#7660b3b66f45ce087ea14572e753f44d">setFlowControl</a>(settings.<a class="code" href="structPortSettings.html#10720f6217b8d8b90c326ea030c43e30">FlowControl</a>);