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<title>SyntekUSBVideoCamera: stk11xx-v4l.c File Reference</title>
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<h1>stk11xx-v4l.c File Reference</h1>Driver for Syntek USB video camera.
<a href="#_details">More...</a>
<p>
<code>#include <linux/module.h></code><br>
<code>#include <linux/init.h></code><br>
<code>#include <linux/kernel.h></code><br>
<code>#include <linux/version.h></code><br>
<code>#include <linux/errno.h></code><br>
<code>#include <linux/slab.h></code><br>
<code>#include <linux/kref.h></code><br>
<code>#include <linux/vmalloc.h></code><br>
<code>#include <linux/mm.h></code><br>
<code>#include <linux/videodev.h></code><br>
<code>#include <linux/usb.h></code><br>
<code>#include <media/v4l2-common.h></code><br>
<code>#include <media/v4l2-ioctl.h></code><br>
<code>#include "<a class="el" href="stk11xx_8h_source.html">stk11xx.h</a>"</code><br>
<p>
<a href="stk11xx-v4l_8c_source.html">Go to the source code of this file.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="stk11xx-v4l_8c.html#627028fbe327bdeb1589d74109e9ae77">v4l_stk11xx_select_video_mode</a> (struct usb_stk11xx *dev, int width, int height)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Select a video mode. <a href="#627028fbe327bdeb1589d74109e9ae77"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static int </td><td class="memItemRight" valign="bottom"><a class="el" href="stk11xx-v4l_8c.html#d9cad7787e40bec3f52a71257c625ab3">v4l_stk11xx_open</a> (struct inode *inode, struct file *fp)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Open the video device. <a href="#d9cad7787e40bec3f52a71257c625ab3"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static int </td><td class="memItemRight" valign="bottom"><a class="el" href="stk11xx-v4l_8c.html#1c1d2854c3d127dde05c86084d2afe30">v4l_stk11xx_release</a> (struct inode *inode, struct file *fp)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Release an opened file. <a href="#1c1d2854c3d127dde05c86084d2afe30"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static ssize_t </td><td class="memItemRight" valign="bottom"><a class="el" href="stk11xx-v4l_8c.html#e125a26fc4f36a4b64418acb87b958a4">v4l_stk11xx_read</a> (struct file *fp, char __user *buf, size_t count, loff_t *f_pos)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Read the video device. <a href="#e125a26fc4f36a4b64418acb87b958a4"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="stk11xx-v4l_8c.html#159e3f9cb0b7adb3d1b9e64298d2b42b">v4l_stk11xx_poll</a> (struct file *fp, poll_table *wait)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Polling function. <a href="#159e3f9cb0b7adb3d1b9e64298d2b42b"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static int </td><td class="memItemRight" valign="bottom"><a class="el" href="stk11xx-v4l_8c.html#1baaafe560fe7466c7062aacd02aff8c">v4l_stk11xx_mmap</a> (struct file *fp, struct vm_area_struct *vma)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Memory map. <a href="#1baaafe560fe7466c7062aacd02aff8c"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static int </td><td class="memItemRight" valign="bottom"><a class="el" href="stk11xx-v4l_8c.html#e791183c09f41bf23d9bc5853d0c080f">v4l_stk11xx_do_ioctl</a> (struct inode *inode, struct file *fp, unsigned int cmd, void __user *arg)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Manage IOCTL. <a href="#e791183c09f41bf23d9bc5853d0c080f"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static int </td><td class="memItemRight" valign="bottom"><a class="el" href="stk11xx-v4l_8c.html#7b92f4afecdd87647a24fb121e7df39d">v4l_stk11xx_ioctl</a> (struct inode *inode, struct file *fp, unsigned int cmd, unsigned long arg)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Manage IOCTL. <a href="#7b92f4afecdd87647a24fb121e7df39d"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="stk11xx-v4l_8c.html#5fb1deffc636cce6dffc8b5e971e6115">v4l_stk11xx_register_video_device</a> (struct usb_stk11xx *dev)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Register the video device. <a href="#5fb1deffc636cce6dffc8b5e971e6115"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="stk11xx-v4l_8c.html#62bc2469df7a6e1d2fe8c455012bd9ad">v4l_stk11xx_unregister_video_device</a> (struct usb_stk11xx *dev)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Unregister the video device. <a href="#62bc2469df7a6e1d2fe8c455012bd9ad"></a><br></td></tr>
<tr><td colspan="2"><br><h2>Variables</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static struct file_operations </td><td class="memItemRight" valign="bottom"><a class="el" href="stk11xx-v4l_8c.html#9b7273f902f9cb582947ef10f7e67a8c">v4l_stk11xx_fops</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">struct stk11xx_coord </td><td class="memItemRight" valign="bottom"><a class="el" href="stk11xx-v4l_8c.html#4977da08718c28052dab2096023754e2">stk11xx_image_sizes</a> [STK11XX_NBR_SIZES]</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static struct v4l2_queryctrl </td><td class="memItemRight" valign="bottom"><a class="el" href="stk11xx-v4l_8c.html#3aef683028a48feea4df78904b903e81">stk11xx_controls</a> []</td></tr>
</table>
<hr><h2>Detailed Description</h2>
Driver for Syntek USB video camera.
<p>
<dl class="author" compact><dt><b>Author:</b></dt><dd>Nicolas VIVIEN </dd></dl>
<dl class="date" compact><dt><b>Date:</b></dt><dd>2006-10-23 </dd></dl>
<dl class="version" compact><dt><b>Version:</b></dt><dd>v1.3.x</dd></dl>
<dl class="note" compact><dt><b>Note:</b></dt><dd>Copyright (C) Nicolas VIVIEN</dd></dl>
<dl class="user" compact><dt><b>Licences</b></dt><dd></dd></dl>
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or any later version.<p>
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.<p>
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA<p>
<dl class="user" compact><dt><b>SubVersion</b></dt><dd></dd></dl>
<dl class="rcs" compact><dt><b>Date</b></dt><dd>2008-02-05 10:10:01 +0100 (mar, 05 fév 2008) </dd></dl>
<dl class="rcs" compact><dt><b>Revision</b></dt><dd>72 </dd></dl>
<dl class="rcs" compact><dt><b>Author</b></dt><dd>nicklas79 </dd></dl>
<dl class="rcs" compact><dt><b>HeadURL</b></dt><dd><a href="https://syntekdriver.svn.sourceforge.net/svnroot/syntekdriver/tags/1.3.1/stk11xx-v4l.c">https://syntekdriver.svn.sourceforge.net/svnroot/syntekdriver/tags/1.3.1/stk11xx-v4l.c</a> </dd></dl>
<p>Definition in file <a class="el" href="stk11xx-v4l_8c_source.html">stk11xx-v4l.c</a>.</p>
<hr><h2>Function Documentation</h2>
<a class="anchor" name="e791183c09f41bf23d9bc5853d0c080f"></a><!-- doxytag: member="stk11xx-v4l.c::v4l_stk11xx_do_ioctl" ref="e791183c09f41bf23d9bc5853d0c080f" args="(struct inode *inode, struct file *fp, unsigned int cmd, void __user *arg)" -->
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<td class="memname">static int v4l_stk11xx_do_ioctl </td>
<td>(</td>
<td class="paramtype">struct inode * </td>
<td class="paramname"> <em>inode</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct file * </td>
<td class="paramname"> <em>fp</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int </td>
<td class="paramname"> <em>cmd</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">void __user * </td>
<td class="paramname"> <em>arg</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td><code> [static]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Manage IOCTL.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>inode</em> </td><td>Inode pointer </td></tr>
<tr><td valign="top"></td><td valign="top"><em>fp</em> </td><td>File pointer </td></tr>
<tr><td valign="top"></td><td valign="top"><em>cmd</em> </td><td>Command </td></tr>
<tr><td valign="top"></td><td valign="top"><em>arg</em> </td><td>Arguments of the command</td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>0 if all is OK</dd></dl>
This function permits to manage all the IOCTL from the application.
<p>Definition at line <a class="el" href="stk11xx-v4l_8c_source.html#l00590">590</a> of file <a class="el" href="stk11xx-v4l_8c_source.html">stk11xx-v4l.c</a>.</p>
<p>References <a class="el" href="stk11xx-dev_8c_source.html#l00270">dev_stk11xx_camera_asleep()</a>, <a class="el" href="stk11xx-dev_8c_source.html#l00247">dev_stk11xx_camera_off()</a>, <a class="el" href="stk11xx-dev_8c_source.html#l00224">dev_stk11xx_camera_on()</a>, <a class="el" href="stk11xx-dev_8c_source.html#l00321">dev_stk11xx_camera_settings()</a>, <a class="el" href="stk11xx-dev_8c_source.html#l00110">dev_stk11xx_init_camera()</a>, <a class="el" href="stk11xx-dev_8c_source.html#l00515">dev_stk11xx_reconf_camera()</a>, <a class="el" href="stk11xx-dev_8c_source.html#l00468">dev_stk11xx_start_stream()</a>, <a class="el" href="stk11xx-dev_8c_source.html#l00563">dev_stk11xx_stop_stream()</a>, <a class="el" href="stk11xx_8h_source.html#l00040">DRIVER_VERSION_NUM</a>, <a class="el" href="stk11xx-buf_8c_source.html#l00271">stk11xx_clear_buffers()</a>, <a class="el" href="stk11xx-v4l_8c_source.html#l00079">stk11xx_controls</a>, <a class="el" href="stk11xx-buf_8c_source.html#l00408">stk11xx_handle_frame()</a>, <a class="el" href="stk11xx-v4l_8c_source.html#l00062">stk11xx_image_sizes</a>, <a class="el" href="stk11xx-buf_8c_source.html#l00335">stk11xx_next_image()</a>, <a class="el" href="stk11xx_8h_source.html#l00196">STK11XX_SXGA</a>, <a class="el" href="stk11xx_8h_source.html#l00195">STK11XX_VGA</a>, <a class="el" href="stk11xx_8h_source.html#l00148">STK_DEBUG</a>, <a class="el" href="stk11xx_8h_source.html#l00146">STK_ERROR</a>, <a class="el" href="stk11xx-usb_8c_source.html#l00435">usb_stk11xx_isoc_cleanup()</a>, <a class="el" href="stk11xx-usb_8c_source.html#l00124">usb_stk11xx_isoc_init()</a>, and <a class="el" href="stk11xx-v4l_8c_source.html#l00130">v4l_stk11xx_select_video_mode()</a>.</p>
<p>Referenced by <a class="el" href="stk11xx-v4l_8c_source.html#l01621">v4l_stk11xx_ioctl()</a>.</p>
</div>
</div><p>
<a class="anchor" name="7b92f4afecdd87647a24fb121e7df39d"></a><!-- doxytag: member="stk11xx-v4l.c::v4l_stk11xx_ioctl" ref="7b92f4afecdd87647a24fb121e7df39d" args="(struct inode *inode, struct file *fp, unsigned int cmd, unsigned long arg)" -->
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<td class="memname">static int v4l_stk11xx_ioctl </td>
<td>(</td>
<td class="paramtype">struct inode * </td>
<td class="paramname"> <em>inode</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct file * </td>
<td class="paramname"> <em>fp</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int </td>
<td class="paramname"> <em>cmd</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned long </td>
<td class="paramname"> <em>arg</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td><code> [static]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Manage IOCTL.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>inode</em> </td><td>Inode pointer </td></tr>
<tr><td valign="top"></td><td valign="top"><em>fp</em> </td><td>File pointer </td></tr>
<tr><td valign="top"></td><td valign="top"><em>cmd</em> </td><td>Command </td></tr>
<tr><td valign="top"></td><td valign="top"><em>arg</em> </td><td>Arguements of the command</td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>0 if all is OK</dd></dl>
This function permits to manage all the IOCTL from the application.
<p>Definition at line <a class="el" href="stk11xx-v4l_8c_source.html#l01621">1621</a> of file <a class="el" href="stk11xx-v4l_8c_source.html">stk11xx-v4l.c</a>.</p>
<p>References <a class="el" href="stk11xx_8h_source.html#l00148">STK_DEBUG</a>, and <a class="el" href="stk11xx-v4l_8c_source.html#l00590">v4l_stk11xx_do_ioctl()</a>.</p>
</div>
</div><p>
<a class="anchor" name="1baaafe560fe7466c7062aacd02aff8c"></a><!-- doxytag: member="stk11xx-v4l.c::v4l_stk11xx_mmap" ref="1baaafe560fe7466c7062aacd02aff8c" args="(struct file *fp, struct vm_area_struct *vma)" -->
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<td class="memname">static int v4l_stk11xx_mmap </td>
<td>(</td>
<td class="paramtype">struct file * </td>
<td class="paramname"> <em>fp</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct vm_area_struct * </td>
<td class="paramname"> <em>vma</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td><code> [static]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Memory map.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>fp</em> </td><td>File pointer </td></tr>
<tr><td valign="top"></td><td valign="top"><em>vma</em> </td><td>VMA structure</td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>0 if all is OK</dd></dl>
This function permits to map a memory space.
<p>Definition at line <a class="el" href="stk11xx-v4l_8c_source.html#l00509">509</a> of file <a class="el" href="stk11xx-v4l_8c_source.html">stk11xx-v4l.c</a>.</p>
<p>References <a class="el" href="stk11xx_8h_source.html#l00095">STK11XX_MAX_IMAGES</a>, <a class="el" href="stk11xx_8h_source.html#l00146">STK_ERROR</a>, and <a class="el" href="stk11xx_8h_source.html#l00171">STK_STREAM</a>.</p>
</div>
</div><p>
<a class="anchor" name="d9cad7787e40bec3f52a71257c625ab3"></a><!-- doxytag: member="stk11xx-v4l.c::v4l_stk11xx_open" ref="d9cad7787e40bec3f52a71257c625ab3" args="(struct inode *inode, struct file *fp)" -->
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<td class="memname">static int v4l_stk11xx_open </td>
<td>(</td>
<td class="paramtype">struct inode * </td>
<td class="paramname"> <em>inode</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct file * </td>
<td class="paramname"> <em>fp</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td><code> [static]</code></td>
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<div class="memdoc">
<p>
Open the video device.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>inode</em> </td><td>Pointer on an inode </td></tr>
<tr><td valign="top"></td><td valign="top"><em>fp</em> </td><td>File pointer</td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>0 if all is OK</dd></dl>
This function permits to open a video device (/dev/videoX)
<p>Definition at line <a class="el" href="stk11xx-v4l_8c_source.html#l00258">258</a> of file <a class="el" href="stk11xx-v4l_8c_source.html">stk11xx-v4l.c</a>.</p>
<p>References <a class="el" href="stk11xx-dev_8c_source.html#l00224">dev_stk11xx_camera_on()</a>, <a class="el" href="stk11xx-dev_8c_source.html#l00321">dev_stk11xx_camera_settings()</a>, <a class="el" href="stk11xx-dev_8c_source.html#l00110">dev_stk11xx_init_camera()</a>, <a class="el" href="stk11xx-dev_8c_source.html#l00515">dev_stk11xx_reconf_camera()</a>, <a class="el" href="stk11xx-dev_8c_source.html#l00468">dev_stk11xx_start_stream()</a>, <a class="el" href="stk11xx-buf_8c_source.html#l00129">stk11xx_allocate_buffers()</a>, <a class="el" href="stk11xx-buf_8c_source.html#l00288">stk11xx_free_buffers()</a>, <a class="el" href="stk11xx-buf_8c_source.html#l00222">stk11xx_reset_buffers()</a>, <a class="el" href="stk11xx_8h_source.html#l00148">STK_DEBUG</a>, <a class="el" href="stk11xx_8h_source.html#l00146">STK_ERROR</a>, <a class="el" href="stk11xx-usb_8c_source.html#l00435">usb_stk11xx_isoc_cleanup()</a>, <a class="el" href="stk11xx-usb_8c_source.html#l00124">usb_stk11xx_isoc_init()</a>, and <a class="el" href="stk11xx-v4l_8c_source.html#l00130">v4l_stk11xx_select_video_mode()</a>.</p>
</div>
</div><p>
<a class="anchor" name="159e3f9cb0b7adb3d1b9e64298d2b42b"></a><!-- doxytag: member="stk11xx-v4l.c::v4l_stk11xx_poll" ref="159e3f9cb0b7adb3d1b9e64298d2b42b" args="(struct file *fp, poll_table *wait)" -->
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<td class="memname">static unsigned int v4l_stk11xx_poll </td>
<td>(</td>
<td class="paramtype">struct file * </td>
<td class="paramname"> <em>fp</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">poll_table * </td>
<td class="paramname"> <em>wait</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td><code> [static]</code></td>
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<p>
Polling function.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>fp</em> </td><td>File pointer </td></tr>
<tr><td valign="top"></td><td valign="top"><em>wait</em> </td><td></td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>0 if all is OK </dd></dl>
<p>Definition at line <a class="el" href="stk11xx-v4l_8c_source.html#l00471">471</a> of file <a class="el" href="stk11xx-v4l_8c_source.html">stk11xx-v4l.c</a>.</p>
<p>References <a class="el" href="stk11xx_8h_source.html#l00171">STK_STREAM</a>.</p>
</div>
</div><p>
<a class="anchor" name="e125a26fc4f36a4b64418acb87b958a4"></a><!-- doxytag: member="stk11xx-v4l.c::v4l_stk11xx_read" ref="e125a26fc4f36a4b64418acb87b958a4" args="(struct file *fp, char __user *buf, size_t count, loff_t *f_pos)" -->
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<td class="memname">static ssize_t v4l_stk11xx_read </td>
<td>(</td>
<td class="paramtype">struct file * </td>
<td class="paramname"> <em>fp</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">char __user * </td>
<td class="paramname"> <em>buf</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"> <em>count</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">loff_t * </td>
<td class="paramname"> <em>f_pos</em></td><td> </td>
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<tr>
<td></td>
<td>)</td>
<td></td><td></td><td><code> [static]</code></td>
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<p>
Read the video device.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>fp</em> </td><td>File pointer</td></tr>
</table>
</dl>
<dl compact><dt><b>Return values:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>buf</em> </td><td>Buffer in user space </td></tr>
<tr><td valign="top"></td><td valign="top"><em>count</em> </td><td></td></tr>
<tr><td valign="top"></td><td valign="top"><em>f_pos</em> </td><td></td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>Count value</dd></dl>
This function is called by the application is reading the video device.
<p>Definition at line <a class="el" href="stk11xx-v4l_8c_source.html#l00383">383</a> of file <a class="el" href="stk11xx-v4l_8c_source.html">stk11xx-v4l.c</a>.</p>
<p>References <a class="el" href="stk11xx-buf_8c_source.html#l00408">stk11xx_handle_frame()</a>, <a class="el" href="stk11xx-buf_8c_source.html#l00335">stk11xx_next_image()</a>, and <a class="el" href="stk11xx_8h_source.html#l00171">STK_STREAM</a>.</p>
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</div><p>
<a class="anchor" name="5fb1deffc636cce6dffc8b5e971e6115"></a><!-- doxytag: member="stk11xx-v4l.c::v4l_stk11xx_register_video_device" ref="5fb1deffc636cce6dffc8b5e971e6115" args="(struct usb_stk11xx *dev)" -->
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<td class="memname">int v4l_stk11xx_register_video_device </td>
<td>(</td>
<td class="paramtype">struct usb_stk11xx * </td>
<td class="paramname"> <em>dev</em> </td>
<td> ) </td>
<td></td>
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<p>
Register the video device.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>dev</em> </td><td>Device structure</td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>0 if all is OK</dd></dl>
This function permits to register the USB device to the video device.
<p>Definition at line <a class="el" href="stk11xx-v4l_8c_source.html#l01654">1654</a> of file <a class="el" href="stk11xx-v4l_8c_source.html">stk11xx-v4l.c</a>.</p>
<p>References <a class="el" href="stk11xx_8h_source.html#l00041">DRIVER_DESC</a>, <a class="el" href="stk11xx_8h_source.html#l00146">STK_ERROR</a>, <a class="el" href="stk11xx_8h_source.html#l00145">STK_INFO</a>, <a class="el" href="stk11xx-v4l_8c_source.html#l00055">v4l_stk11xx_fops</a>, and <a class="el" href="stk11xx_8h_source.html#l00064">VID_HARDWARE_STK11XX</a>.</p>
<p>Referenced by <a class="el" href="stk11xx-usb_8c_source.html#l00679">usb_stk11xx_probe()</a>.</p>
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<a class="anchor" name="1c1d2854c3d127dde05c86084d2afe30"></a><!-- doxytag: member="stk11xx-v4l.c::v4l_stk11xx_release" ref="1c1d2854c3d127dde05c86084d2afe30" args="(struct inode *inode, struct file *fp)" -->
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<td class="memname">static int v4l_stk11xx_release </td>
<td>(</td>
<td class="paramtype">struct inode * </td>
<td class="paramname"> <em>inode</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct file * </td>
<td class="paramname"> <em>fp</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td><code> [static]</code></td>
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<p>
Release an opened file.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>inode</em> </td><td>Pointer on inode </td></tr>
<tr><td valign="top"></td><td valign="top"><em>fp</em> </td><td>File pointer</td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>0 if all is OK</dd></dl>
This function permits to release an opened file with the 'open' method.
<p>Definition at line <a class="el" href="stk11xx-v4l_8c_source.html#l00339">339</a> of file <a class="el" href="stk11xx-v4l_8c_source.html">stk11xx-v4l.c</a>.</p>
<p>References <a class="el" href="stk11xx-dev_8c_source.html#l00270">dev_stk11xx_camera_asleep()</a>, <a class="el" href="stk11xx-dev_8c_source.html#l00247">dev_stk11xx_camera_off()</a>, <a class="el" href="stk11xx-dev_8c_source.html#l00563">dev_stk11xx_stop_stream()</a>, <a class="el" href="stk11xx-buf_8c_source.html#l00288">stk11xx_free_buffers()</a>, <a class="el" href="stk11xx_8h_source.html#l00146">STK_ERROR</a>, and <a class="el" href="stk11xx-usb_8c_source.html#l00435">usb_stk11xx_isoc_cleanup()</a>.</p>
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</div><p>
<a class="anchor" name="627028fbe327bdeb1589d74109e9ae77"></a><!-- doxytag: member="stk11xx-v4l.c::v4l_stk11xx_select_video_mode" ref="627028fbe327bdeb1589d74109e9ae77" args="(struct usb_stk11xx *dev, int width, int height)" -->
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<td class="memname">int v4l_stk11xx_select_video_mode </td>
<td>(</td>
<td class="paramtype">struct usb_stk11xx * </td>
<td class="paramname"> <em>dev</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>width</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>height</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
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</table>
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<p>
Select a video mode.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>dev</em> </td><td></td></tr>
<tr><td valign="top"></td><td valign="top"><em>width</em> </td><td>Width of wished resolution </td></tr>
<tr><td valign="top"></td><td valign="top"><em>height</em> </td><td>Height of wished resolution</td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>0 if all is OK</dd></dl>
This function permits to check and select a video mode.
<p>Definition at line <a class="el" href="stk11xx-v4l_8c_source.html#l00130">130</a> of file <a class="el" href="stk11xx-v4l_8c_source.html">stk11xx-v4l.c</a>.</p>
<p>References <a class="el" href="stk11xx-v4l_8c_source.html#l00062">stk11xx_image_sizes</a>, <a class="el" href="stk11xx_8h_source.html#l00196">STK11XX_SXGA</a>, <a class="el" href="stk11xx_8h_source.html#l00195">STK11XX_VGA</a>, and <a class="el" href="stk11xx_8h_source.html#l00148">STK_DEBUG</a>.</p>
<p>Referenced by <a class="el" href="stk11xx-v4l_8c_source.html#l00590">v4l_stk11xx_do_ioctl()</a>, and <a class="el" href="stk11xx-v4l_8c_source.html#l00258">v4l_stk11xx_open()</a>.</p>
</div>
</div><p>
<a class="anchor" name="62bc2469df7a6e1d2fe8c455012bd9ad"></a><!-- doxytag: member="stk11xx-v4l.c::v4l_stk11xx_unregister_video_device" ref="62bc2469df7a6e1d2fe8c455012bd9ad" args="(struct usb_stk11xx *dev)" -->
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<td class="memname">int v4l_stk11xx_unregister_video_device </td>
<td>(</td>
<td class="paramtype">struct usb_stk11xx * </td>
<td class="paramname"> <em>dev</em> </td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Unregister the video device.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>dev</em> </td><td>Device structure</td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>0 if all is OK</dd></dl>
This function permits to unregister the video device.
<p>Definition at line <a class="el" href="stk11xx-v4l_8c_source.html#l01697">1697</a> of file <a class="el" href="stk11xx-v4l_8c_source.html">stk11xx-v4l.c</a>.</p>
<p>References <a class="el" href="stk11xx_8h_source.html#l00145">STK_INFO</a>.</p>
<p>Referenced by <a class="el" href="stk11xx-usb_8c_source.html#l00897">usb_stk11xx_disconnect()</a>.</p>
</div>
</div><p>
<hr><h2>Variable Documentation</h2>
<a class="anchor" name="3aef683028a48feea4df78904b903e81"></a><!-- doxytag: member="stk11xx-v4l.c::stk11xx_controls" ref="3aef683028a48feea4df78904b903e81" args="[]" -->
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<td class="memname"><a class="el" href="stk11xx-v4l_8c.html#3aef683028a48feea4df78904b903e81">stk11xx_controls</a><code> [static]</code> </td>
</tr>
</table>
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<div class="memdoc">
<p>
List of all V4Lv2 controls supported by the driver
<p>Definition at line <a class="el" href="stk11xx-v4l_8c_source.html#l00079">79</a> of file <a class="el" href="stk11xx-v4l_8c_source.html">stk11xx-v4l.c</a>.</p>
<p>Referenced by <a class="el" href="stk11xx-v4l_8c_source.html#l00590">v4l_stk11xx_do_ioctl()</a>.</p>
</div>
</div><p>
<a class="anchor" name="4977da08718c28052dab2096023754e2"></a><!-- doxytag: member="stk11xx-v4l.c::stk11xx_image_sizes" ref="4977da08718c28052dab2096023754e2" args="[STK11XX_NBR_SIZES]" -->
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<td class="memname">struct stk11xx_coord <a class="el" href="stk11xx_8h.html#4977da08718c28052dab2096023754e2">stk11xx_image_sizes</a>[STK11XX_NBR_SIZES] </td>
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<div class="memdoc">
<p>
<b>Initial value:</b><div class="fragment"><pre class="fragment"> {
{ 80, 60 },
{ 128, 96 },
{ 160, 120 },
{ 213, 160 },
{ 320, 240 },
{ 640, 480 },
{ 800, 600 },
{ 1024, 768 },
{ 1280, 1024 }
}
</pre></div>List of all resolutions supported by the driver
<p>Definition at line <a class="el" href="stk11xx-v4l_8c_source.html#l00062">62</a> of file <a class="el" href="stk11xx-v4l_8c_source.html">stk11xx-v4l.c</a>.</p>
<p>Referenced by <a class="el" href="stk11xx-sysfs_8c_source.html#l00119">show_informations()</a>, <a class="el" href="stk11xx-v4l_8c_source.html#l00590">v4l_stk11xx_do_ioctl()</a>, and <a class="el" href="stk11xx-v4l_8c_source.html#l00130">v4l_stk11xx_select_video_mode()</a>.</p>
</div>
</div><p>
<a class="anchor" name="9b7273f902f9cb582947ef10f7e67a8c"></a><!-- doxytag: member="stk11xx-v4l.c::v4l_stk11xx_fops" ref="9b7273f902f9cb582947ef10f7e67a8c" args="" -->
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<td class="memname">static struct file_operations <a class="el" href="stk11xx-v4l_8c.html#9b7273f902f9cb582947ef10f7e67a8c">v4l_stk11xx_fops</a><code> [static, read]</code> </td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
<b>Initial value:</b><div class="fragment"><pre class="fragment"> {
.owner = THIS_MODULE,
.open = <a class="code" href="stk11xx-v4l_8c.html#d9cad7787e40bec3f52a71257c625ab3" title="Open the video device.">v4l_stk11xx_open</a>,
.release = <a class="code" href="stk11xx-v4l_8c.html#1c1d2854c3d127dde05c86084d2afe30" title="Release an opened file.">v4l_stk11xx_release</a>,
.read = <a class="code" href="stk11xx-v4l_8c.html#e125a26fc4f36a4b64418acb87b958a4" title="Read the video device.">v4l_stk11xx_read</a>,
.poll = <a class="code" href="stk11xx-v4l_8c.html#159e3f9cb0b7adb3d1b9e64298d2b42b" title="Polling function.">v4l_stk11xx_poll</a>,
.mmap = <a class="code" href="stk11xx-v4l_8c.html#1baaafe560fe7466c7062aacd02aff8c" title="Memory map.">v4l_stk11xx_mmap</a>,
.ioctl = <a class="code" href="stk11xx-v4l_8c.html#7b92f4afecdd87647a24fb121e7df39d" title="Manage IOCTL.">v4l_stk11xx_ioctl</a>,
.llseek = no_llseek
}
</pre></div>This variable contains some callback
<p>Definition at line <a class="el" href="stk11xx-v4l_8c_source.html#l00055">55</a> of file <a class="el" href="stk11xx-v4l_8c_source.html">stk11xx-v4l.c</a>.</p>
<p>Referenced by <a class="el" href="stk11xx-v4l_8c_source.html#l01654">v4l_stk11xx_register_video_device()</a>.</p>
</div>
</div><p>
</div>
<hr size="1"><address style="text-align: right;"><small>Generated on Sun Sep 20 12:18:50 2009 for SyntekUSBVideoCamera by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.9 </small></address>
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2010.0
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i586
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media
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contrib-release
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by-pkgid
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b7b6877999d0754e8ed227e0b2f603dc
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files
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