V4L/DVB (12761): DocBook: add media API specs

The V4L and DVB API's are there for a long time. however, up to now,
no efforts were done to merge them to kernel DocBook.

This patch adds the current versions of the specs as an unique compendium.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Documentation/DocBook/Makefile

@@ -14,7 +14,7 @@ DOCBOOKS := z8530book.xml mcabook.xml device-drivers.xml \
 	    genericirq.xml s390-drivers.xml uio-howto.xml scsi.xml \
 	    mac80211.xml debugobjects.xml sh.xml regulator.xml \
 	    alsa-driver-api.xml writing-an-alsa-driver.xml \
-	    tracepoint.xml
+	    tracepoint.xml media.xml
 
 ###
 # The build process is as follows (targets):

Documentation/DocBook/dvb/ca.xml

+<title>DVB CA Device</title>
+<para>The DVB CA device controls the conditional access hardware. It can be accessed through
+<emphasis role="tt">/dev/dvb/adapter0/ca0</emphasis>. Data types and and ioctl definitions can be accessed by
+including <emphasis role="tt">linux/dvb/ca.h</emphasis> in your application.
+</para>
+
+<section id="ca_data_types">
+<title>CA Data Types</title>
+
+
+<section id="ca_slot_info_t">
+<title>ca_slot_info_t</title>
+ <programlisting>
+ /&#x22C6; slot interface types and info &#x22C6;/
+
+ typedef struct ca_slot_info_s {
+	 int num;               /&#x22C6; slot number &#x22C6;/
+
+	 int type;           /&#x22C6; CA interface this slot supports &#x22C6;/
+ #define CA_CI            1  /&#x22C6; CI high level interface &#x22C6;/
+ #define CA_CI_LINK       2  /&#x22C6; CI link layer level interface &#x22C6;/
+ #define CA_CI_PHYS       4  /&#x22C6; CI physical layer level interface &#x22C6;/
+ #define CA_SC          128  /&#x22C6; simple smart card interface &#x22C6;/
+
+	 unsigned int flags;
+ #define CA_CI_MODULE_PRESENT 1 /&#x22C6; module (or card) inserted &#x22C6;/
+ #define CA_CI_MODULE_READY   2
+ } ca_slot_info_t;
+</programlisting>
+
+</section>
+<section id="ca_descr_info_t">
+<title>ca_descr_info_t</title>
+ <programlisting>
+ typedef struct ca_descr_info_s {
+	 unsigned int num;  /&#x22C6; number of available descramblers (keys) &#x22C6;/
+	 unsigned int type; /&#x22C6; type of supported scrambling system &#x22C6;/
+ #define CA_ECD           1
+ #define CA_NDS           2
+ #define CA_DSS           4
+ } ca_descr_info_t;
+</programlisting>
+
+</section>
+<section id="ca_cap_t">
+<title>ca_cap_t</title>
+ <programlisting>
+ typedef struct ca_cap_s {
+	 unsigned int slot_num;  /&#x22C6; total number of CA card and module slots &#x22C6;/
+	 unsigned int slot_type; /&#x22C6; OR of all supported types &#x22C6;/
+	 unsigned int descr_num; /&#x22C6; total number of descrambler slots (keys) &#x22C6;/
+	 unsigned int descr_type;/&#x22C6; OR of all supported types &#x22C6;/
+ } ca_cap_t;
+</programlisting>
+
+</section>
+<section id="ca_msg_t">
+<title>ca_msg_t</title>
+ <programlisting>
+ /&#x22C6; a message to/from a CI-CAM &#x22C6;/
+ typedef struct ca_msg_s {
+	 unsigned int index;
+	 unsigned int type;
+	 unsigned int length;
+	 unsigned char msg[256];
+ } ca_msg_t;
+</programlisting>
+
+</section>
+<section id="ca_descr_t">
+<title>ca_descr_t</title>
+ <programlisting>
+ typedef struct ca_descr_s {
+	 unsigned int index;
+	 unsigned int parity;
+	 unsigned char cw[8];
+ } ca_descr_t;
+</programlisting>
+ </section></section>
+<section id="ca_function_calls">
+<title>CA Function Calls</title>
+
+
+<section id="ca_fopen">
+<title>open()</title>
+<para>DESCRIPTION
+</para>
+<informaltable><tgroup cols="1"><tbody><row><entry
+ align="char">
+<para>This system call opens a named ca device (e.g. /dev/ost/ca) for subsequent use.</para>
+<para>When an open() call has succeeded, the device will be ready for use.
+ The significance of blocking or non-blocking mode is described in the
+ documentation for functions where there is a difference. It does not affect the
+ semantics of the open() call itself. A device opened in blocking mode can later
+ be put into non-blocking mode (and vice versa) using the F_SETFL command
+ of the fcntl system call. This is a standard system call, documented in the Linux
+ manual page for fcntl. Only one user can open the CA Device in O_RDWR
+ mode. All other attempts to open the device in this mode will fail, and an error
+ code will be returned.</para>
+</entry>
+ </row></tbody></tgroup></informaltable>
+<para>SYNOPSIS
+</para>
+<informaltable><tgroup cols="1"><tbody><row><entry
+ align="char">
+<para>int open(const char &#x22C6;deviceName, int flags);</para>
+</entry>
+ </row></tbody></tgroup></informaltable>
+<para>PARAMETERS
+</para>
+<informaltable><tgroup cols="2"><tbody><row><entry
+ align="char">
+<para>const char
+ *deviceName</para>
+</entry><entry
+ align="char">
+<para>Name of specific video device.</para>
+</entry>
+ </row><row><entry
+ align="char">
+<para>int flags</para>
+</entry><entry
+ align="char">
+<para>A bit-wise OR of the following flags:</para>
+</entry>
+ </row><row><entry
+ align="char">
+</entry><entry
+ align="char">
+<para>O_RDONLY read-only access</para>
+</entry>
+ </row><row><entry
+ align="char">
+</entry><entry
+ align="char">
+<para>O_RDWR read/write access</para>
+</entry>
+ </row><row><entry
+ align="char">
+</entry><entry
+ align="char">
+<para>O_NONBLOCK open in non-blocking mode</para>
+</entry>
+ </row><row><entry
+ align="char">
+</entry><entry
+ align="char">
+<para>(blocking mode is the default)</para>
+</entry>
+ </row></tbody></tgroup></informaltable>
+<para>ERRORS
+</para>
+<informaltable><tgroup cols="2"><tbody><row><entry
+ align="char">
+<para>ENODEV</para>
+</entry><entry
+ align="char">
+<para>Device driver not loaded/available.</para>
+</entry>
+ </row><row><entry
+ align="char">
+<para>EINTERNAL</para>
+</entry><entry
+ align="char">
+<para>Internal error.</para>
+</entry>
+ </row><row><entry
+ align="char">
+<para>EBUSY</para>
+</entry><entry
+ align="char">
+<para>Device or resource busy.</para>
+</entry>
+ </row><row><entry
+ align="char">
+<para>EINVAL</para>
+</entry><entry
+ align="char">
+<para>Invalid argument.</para>
+</entry>
+ </row></tbody></tgroup></informaltable>
+
+</section>
+<section id="ca_fclose">
+<title>close()</title>
+<para>DESCRIPTION
+</para>
+<informaltable><tgroup cols="1"><tbody><row><entry
+ align="char">
+<para>This system call closes a previously opened audio device.</para>
+</entry>
+ </row></tbody></tgroup></informaltable>
+<para>SYNOPSIS
+</para>
+<informaltable><tgroup cols="1"><tbody><row><entry
+ align="char">
+<para>int close(int fd);</para>
+</entry>
+ </row></tbody></tgroup></informaltable>
+<para>PARAMETERS
+</para>
+<informaltable><tgroup cols="2"><tbody><row><entry
+ align="char">
+<para>int fd</para>
+</entry><entry
+ align="char">
+<para>File descriptor returned by a previous call to open().</para>
+</entry>
+ </row></tbody></tgroup></informaltable>
+<para>ERRORS
+</para>
+<informaltable><tgroup cols="2"><tbody><row><entry
+ align="char">
+<para>EBADF</para>
+</entry><entry
+ align="char">
+<para>fd is not a valid open file descriptor.</para>
+</entry>
+ </row></tbody></tgroup></informaltable>
+ </section>
+</section>

Documentation/DocBook/dvb/dvbapi.xml

+<partinfo>
+<authorgroup>
+<author>
+<firstname>Ralph</firstname>
+<surname>Metzler</surname>
+<othername role="mi">J. K.</othername>
+<affiliation><address><email>rjkm@metzlerbros.de</email></address></affiliation>
+</author>
+<author>
+<firstname>Marcus</firstname>
+<surname>Metzler</surname>
+<othername role="mi">O. C.</othername>
+<affiliation><address><email>rjkm@metzlerbros.de</email></address></affiliation>
+</author>
+<author>
+<firstname>Mauro</firstname>
+<surname>Chehab</surname>
+<othername role="mi">Carvalho</othername>
+<affiliation><address><email>mchehab@redhat.com</email></address></affiliation>
+<contrib>Ported document to Docbook XML.</contrib>
+</author>
+</authorgroup>
+<copyright>
+	<year>2002</year>
+	<year>2003</year>
+	<year>2009</year>
+	<holder>Convergence GmbH</holder>
+</copyright>
+
+<revhistory>
+<!-- Put document revisions here, newest first. -->
+<revision>
+<revnumber>2.0.0</revnumber>
+<date>2009-09-06</date>
+<authorinitials>mcc</authorinitials>
+<revremark>Conversion from LaTex to DocBook XML. The
+	contents is the same as the original LaTex version.</revremark>
+</revision>
+<revision>
+<revnumber>1.0.0</revnumber>
+<date>2003-07-24</date>
+<authorinitials>rjkm</authorinitials>
+<revremark>Initial revision on LaTEX.</revremark>
+</revision>
+</revhistory>
+</partinfo>
+
+
+<title>LINUX DVB API</title>
+<subtitle>Version 3</subtitle>
+<!-- ADD THE CHAPTERS HERE -->
+  <chapter id="dvb_introdution">
+    &sub-intro;
+  </chapter>
+  <chapter id="dvb_frontend">
+    &sub-frontend;
+  </chapter>
+  <chapter id="dvb_demux">
+    &sub-demux;
+  </chapter>
+  <chapter id="dvb_video">
+    &sub-video;
+  </chapter>
+  <chapter id="dvb_audio">
+    &sub-audio;
+  </chapter>
+  <chapter id="dvb_ca">
+    &sub-ca;
+  </chapter>
+  <chapter id="dvb_net">
+    &sub-net;
+  </chapter>
+  <chapter id="dvb_kdapi">
+    &sub-kdapi;
+  </chapter>
+  <chapter id="dvb_examples">
+    &sub-examples;
+  </chapter>
+<!-- END OF CHAPTERS -->

Documentation/DocBook/dvb/examples.xml

+<title>Examples</title>
+<para>In this section we would like to present some examples for using the DVB API.
+</para>
+<para>Maintainer note: This section is out of date. Please refer to the sample programs packaged
+with the driver distribution from <emphasis role="tt">http://linuxtv.org/</emphasis>.
+</para>
+
+<section id="tuning">
+<title>Tuning</title>
+<para>We will start with a generic tuning subroutine that uses the frontend and SEC, as well as
+the demux devices. The example is given for QPSK tuners, but can easily be adjusted for
+QAM.
+</para>
+<programlisting>
+ #include &#x003C;sys/ioctl.h&#x003E;
+ #include &#x003C;stdio.h&#x003E;
+ #include &#x003C;stdint.h&#x003E;
+ #include &#x003C;sys/types.h&#x003E;
+ #include &#x003C;sys/stat.h&#x003E;
+ #include &#x003C;fcntl.h&#x003E;
+ #include &#x003C;time.h&#x003E;
+ #include &#x003C;unistd.h&#x003E;
+
+ #include &#x003C;linux/dvb/dmx.h&#x003E;
+ #include &#x003C;linux/dvb/frontend.h&#x003E;
+ #include &#x003C;linux/dvb/sec.h&#x003E;
+ #include &#x003C;sys/poll.h&#x003E;
+
+ #define DMX "/dev/dvb/adapter0/demux1"
+ #define FRONT "/dev/dvb/adapter0/frontend1"
+ #define SEC "/dev/dvb/adapter0/sec1"
+
+ /&#x22C6; routine for checking if we have a signal and other status information&#x22C6;/
+ int FEReadStatus(int fd, fe_status_t &#x22C6;stat)
+ {
+	 int ans;
+
+	 if ( (ans = ioctl(fd,FE_READ_STATUS,stat) &#x003C; 0)){
+		 perror("FE READ STATUS: ");
+		 return -1;
+	 }
+
+	 if (&#x22C6;stat &amp; FE_HAS_POWER)
+		 printf("FE HAS POWER\n");
+
+	 if (&#x22C6;stat &amp; FE_HAS_SIGNAL)
+		 printf("FE HAS SIGNAL\n");
+
+	 if (&#x22C6;stat &amp; FE_SPECTRUM_INV)
+		 printf("SPEKTRUM INV\n");
+
+	 return 0;
+ }
+
+
+ /&#x22C6; tune qpsk &#x22C6;/
+ /&#x22C6; freq:             frequency of transponder                      &#x22C6;/
+ /&#x22C6; vpid, apid, tpid: PIDs of video, audio and teletext TS packets  &#x22C6;/
+ /&#x22C6; diseqc:           DiSEqC address of the used LNB                &#x22C6;/
+ /&#x22C6; pol:              Polarisation                                  &#x22C6;/
+ /&#x22C6; srate:            Symbol Rate                                   &#x22C6;/
+ /&#x22C6; fec.              FEC                                           &#x22C6;/
+ /&#x22C6; lnb_lof1:         local frequency of lower LNB band             &#x22C6;/
+ /&#x22C6; lnb_lof2:         local frequency of upper LNB band             &#x22C6;/
+ /&#x22C6; lnb_slof:         switch frequency of LNB                       &#x22C6;/
+
+ int set_qpsk_channel(int freq, int vpid, int apid, int tpid,
+		 int diseqc, int pol, int srate, int fec, int lnb_lof1,
+		 int lnb_lof2, int lnb_slof)
+ {
+	 struct secCommand scmd;
+	 struct secCmdSequence scmds;
+	 struct dmx_pes_filter_params pesFilterParams;
+	 FrontendParameters frp;
+	 struct pollfd pfd[1];
+	 FrontendEvent event;
+	 int demux1, demux2, demux3, front;
+
+	 frequency = (uint32_t) freq;
+	 symbolrate = (uint32_t) srate;
+
+	 if((front = open(FRONT,O_RDWR)) &#x003C; 0){
+		 perror("FRONTEND DEVICE: ");
+		 return -1;
+	 }
+
+	 if((sec = open(SEC,O_RDWR)) &#x003C; 0){
+		 perror("SEC DEVICE: ");
+		 return -1;
+	 }
+
+	 if (demux1 &#x003C; 0){
+		 if ((demux1=open(DMX, O_RDWR|O_NONBLOCK))
+		     &#x003C; 0){
+			 perror("DEMUX DEVICE: ");
+			 return -1;
+		 }
+	 }
+
+	 if (demux2 &#x003C; 0){
+		 if ((demux2=open(DMX, O_RDWR|O_NONBLOCK))
+		     &#x003C; 0){
+			 perror("DEMUX DEVICE: ");
+			 return -1;
+		 }
+	 }
+
+	 if (demux3 &#x003C; 0){
+		 if ((demux3=open(DMX, O_RDWR|O_NONBLOCK))
+		     &#x003C; 0){
+			 perror("DEMUX DEVICE: ");
+			 return -1;
+		 }
+	 }
+
+	 if (freq &#x003C; lnb_slof) {
+		 frp.Frequency = (freq - lnb_lof1);
+		 scmds.continuousTone = SEC_TONE_OFF;
+	 } else {
+		 frp.Frequency = (freq - lnb_lof2);
+		 scmds.continuousTone = SEC_TONE_ON;
+	 }
+	 frp.Inversion = INVERSION_AUTO;
+	 if (pol) scmds.voltage = SEC_VOLTAGE_18;
+	 else scmds.voltage = SEC_VOLTAGE_13;
+
+	 scmd.type=0;
+	 scmd.u.diseqc.addr=0x10;
+	 scmd.u.diseqc.cmd=0x38;
+	 scmd.u.diseqc.numParams=1;
+	 scmd.u.diseqc.params[0] = 0xF0 | ((diseqc &#x22C6; 4) &amp; 0x0F) |
+		 (scmds.continuousTone == SEC_TONE_ON ? 1 : 0) |
+		 (scmds.voltage==SEC_VOLTAGE_18 ? 2 : 0);
+
+	 scmds.miniCommand=SEC_MINI_NONE;
+	 scmds.numCommands=1;
+	 scmds.commands=&amp;scmd;
+	 if (ioctl(sec, SEC_SEND_SEQUENCE, &amp;scmds) &#x003C; 0){
+		 perror("SEC SEND: ");
+		 return -1;
+	 }
+
+	 if (ioctl(sec, SEC_SEND_SEQUENCE, &amp;scmds) &#x003C; 0){
+		 perror("SEC SEND: ");
+		 return -1;
+	 }
+
+	 frp.u.qpsk.SymbolRate = srate;
+	 frp.u.qpsk.FEC_inner = fec;
+
+	 if (ioctl(front, FE_SET_FRONTEND, &amp;frp) &#x003C; 0){
+		 perror("QPSK TUNE: ");
+		 return -1;
+	 }
+
+	 pfd[0].fd = front;
+	 pfd[0].events = POLLIN;
+
+	 if (poll(pfd,1,3000)){
+		 if (pfd[0].revents &amp; POLLIN){
+			 printf("Getting QPSK event\n");
+			 if ( ioctl(front, FE_GET_EVENT, &amp;event)
+
+			      == -EOVERFLOW){
+				 perror("qpsk get event");
+				 return -1;
+			 }
+			 printf("Received ");
+			 switch(event.type){
+			 case FE_UNEXPECTED_EV:
+				 printf("unexpected event\n");
+				 return -1;
+			 case FE_FAILURE_EV:
+				 printf("failure event\n");
+				 return -1;
+
+			 case FE_COMPLETION_EV:
+				 printf("completion event\n");
+			 }
+		 }
+	 }
+
+
+	 pesFilterParams.pid     = vpid;
+	 pesFilterParams.input   = DMX_IN_FRONTEND;
+	 pesFilterParams.output  = DMX_OUT_DECODER;
+	 pesFilterParams.pes_type = DMX_PES_VIDEO;
+	 pesFilterParams.flags   = DMX_IMMEDIATE_START;
+	 if (ioctl(demux1, DMX_SET_PES_FILTER, &amp;pesFilterParams) &#x003C; 0){
+		 perror("set_vpid");
+		 return -1;
+	 }
+
+	 pesFilterParams.pid     = apid;
+	 pesFilterParams.input   = DMX_IN_FRONTEND;
+	 pesFilterParams.output  = DMX_OUT_DECODER;
+	 pesFilterParams.pes_type = DMX_PES_AUDIO;
+	 pesFilterParams.flags   = DMX_IMMEDIATE_START;
+	 if (ioctl(demux2, DMX_SET_PES_FILTER, &amp;pesFilterParams) &#x003C; 0){
+		 perror("set_apid");
+		 return -1;
+	 }
+
+	 pesFilterParams.pid     = tpid;
+	 pesFilterParams.input   = DMX_IN_FRONTEND;
+	 pesFilterParams.output  = DMX_OUT_DECODER;
+	 pesFilterParams.pes_type = DMX_PES_TELETEXT;
+	 pesFilterParams.flags   = DMX_IMMEDIATE_START;
+	 if (ioctl(demux3, DMX_SET_PES_FILTER, &amp;pesFilterParams) &#x003C; 0){
+		 perror("set_tpid");
+		 return -1;
+	 }
+
+	 return has_signal(fds);
+ }
+
+</programlisting>
+<para>The program assumes that you are using a universal LNB and a standard DiSEqC
+switch with up to 4 addresses. Of course, you could build in some more checking if
+tuning was successful and maybe try to repeat the tuning process. Depending on the
+external hardware, i.e. LNB and DiSEqC switch, and weather conditions this may be
+necessary.
+</para>
+</section>
+
+<section id="the_dvr_device">
+<title>The DVR device</title>
+<para>The following program code shows how to use the DVR device for recording.
+</para>
+<programlisting>
+ #include &#x003C;sys/ioctl.h&#x003E;
+ #include &#x003C;stdio.h&#x003E;
+ #include &#x003C;stdint.h&#x003E;
+ #include &#x003C;sys/types.h&#x003E;
+ #include &#x003C;sys/stat.h&#x003E;
+ #include &#x003C;fcntl.h&#x003E;
+ #include &#x003C;time.h&#x003E;
+ #include &#x003C;unistd.h&#x003E;
+
+ #include &#x003C;linux/dvb/dmx.h&#x003E;
+ #include &#x003C;linux/dvb/video.h&#x003E;
+ #include &#x003C;sys/poll.h&#x003E;
+ #define DVR "/dev/dvb/adapter0/dvr1"
+ #define AUDIO "/dev/dvb/adapter0/audio1"
+ #define VIDEO "/dev/dvb/adapter0/video1"
+
+ #define BUFFY (188&#x22C6;20)
+ #define MAX_LENGTH (1024&#x22C6;1024&#x22C6;5) /&#x22C6; record 5MB &#x22C6;/
+
+
+ /&#x22C6; switch the demuxes to recording, assuming the transponder is tuned &#x22C6;/
+
+ /&#x22C6; demux1, demux2: file descriptor of video and audio filters &#x22C6;/
+ /&#x22C6; vpid, apid:     PIDs of video and audio channels           &#x22C6;/
+
+ int switch_to_record(int demux1, int demux2, uint16_t vpid, uint16_t apid)
+ {
+	 struct dmx_pes_filter_params pesFilterParams;
+
+	 if (demux1 &#x003C; 0){
+		 if ((demux1=open(DMX, O_RDWR|O_NONBLOCK))
+		     &#x003C; 0){
+			 perror("DEMUX DEVICE: ");
+			 return -1;
+		 }
+	 }
+
+	 if (demux2 &#x003C; 0){
+		 if ((demux2=open(DMX, O_RDWR|O_NONBLOCK))
+		     &#x003C; 0){
+			 perror("DEMUX DEVICE: ");
+			 return -1;
+		 }
+	 }
+
+	 pesFilterParams.pid = vpid;
+	 pesFilterParams.input = DMX_IN_FRONTEND;
+	 pesFilterParams.output = DMX_OUT_TS_TAP;
+	 pesFilterParams.pes_type = DMX_PES_VIDEO;
+	 pesFilterParams.flags = DMX_IMMEDIATE_START;
+	 if (ioctl(demux1, DMX_SET_PES_FILTER, &amp;pesFilterParams) &#x003C; 0){
+		 perror("DEMUX DEVICE");
+		 return -1;
+	 }
+	 pesFilterParams.pid = apid;
+	 pesFilterParams.input = DMX_IN_FRONTEND;
+	 pesFilterParams.output = DMX_OUT_TS_TAP;
+	 pesFilterParams.pes_type = DMX_PES_AUDIO;
+	 pesFilterParams.flags = DMX_IMMEDIATE_START;
+	 if (ioctl(demux2, DMX_SET_PES_FILTER, &amp;pesFilterParams) &#x003C; 0){
+		 perror("DEMUX DEVICE");
+		 return -1;
+	 }
+	 return 0;
+ }
+
+ /&#x22C6; start recording MAX_LENGTH , assuming the transponder is tuned &#x22C6;/
+
+ /&#x22C6; demux1, demux2: file descriptor of video and audio filters &#x22C6;/
+ /&#x22C6; vpid, apid:     PIDs of video and audio channels           &#x22C6;/
+ int record_dvr(int demux1, int demux2, uint16_t vpid, uint16_t apid)
+ {
+	 int i;
+	 int len;
+	 int written;
+	 uint8_t buf[BUFFY];
+	 uint64_t length;
+	 struct pollfd pfd[1];
+	 int dvr, dvr_out;
+
+	 /&#x22C6; open dvr device &#x22C6;/
+	 if ((dvr = open(DVR, O_RDONLY|O_NONBLOCK)) &#x003C; 0){
+			 perror("DVR DEVICE");
+			 return -1;
+	 }
+
+	 /&#x22C6; switch video and audio demuxes to dvr &#x22C6;/
+	 printf ("Switching dvr on\n");
+	 i = switch_to_record(demux1, demux2, vpid, apid);
+	 printf("finished: ");
+
+	 printf("Recording %2.0f MB of test file in TS format\n",
+		MAX_LENGTH/(1024.0&#x22C6;1024.0));
+	 length = 0;
+
+	 /&#x22C6; open output file &#x22C6;/
+	 if ((dvr_out = open(DVR_FILE,O_WRONLY|O_CREAT
+				  |O_TRUNC, S_IRUSR|S_IWUSR
+				  |S_IRGRP|S_IWGRP|S_IROTH|
+				  S_IWOTH)) &#x003C; 0){
+		 perror("Can't open file for dvr test");
+		 return -1;
+	 }
+
+	 pfd[0].fd = dvr;
+	 pfd[0].events = POLLIN;
+
+	 /&#x22C6; poll for dvr data and write to file &#x22C6;/
+	 while (length &#x003C; MAX_LENGTH ) {
+		 if (poll(pfd,1,1)){
+			 if (pfd[0].revents &amp; POLLIN){
+				 len = read(dvr, buf, BUFFY);
+				 if (len &#x003C; 0){
+					 perror("recording");
+					 return -1;
+				 }
+				 if (len &#x003E; 0){
+					 written = 0;
+					 while (written &#x003C; len)
+						 written +=
+							 write (dvr_out,
+								buf, len);
+					 length += len;
+					 printf("written %2.0f MB\r",
+						length/1024./1024.);
+				 }
+			 }
+		 }
+	 }
+	 return 0;
+ }
+
+</programlisting>
+
+</section>

Documentation/DocBook/dvb/net.xml

+<title>DVB Network API</title>
+<para>The DVB net device enables feeding of MPE (multi protocol encapsulation) packets
+received via DVB into the Linux network protocol stack, e.g. for internet via satellite
+applications. It can be accessed through <emphasis role="tt">/dev/dvb/adapter0/net0</emphasis>. Data types and
+and ioctl definitions can be accessed by including <emphasis role="tt">linux/dvb/net.h</emphasis> in your
+application.
+</para>
+<section id="dvb_net_types">
+<title>DVB Net Data Types</title>
+<para>To be written&#x2026;
+</para>
+</section>

Documentation/DocBook/media-indices.xml

+<!-- Generated file! Do not edit. -->
+
+<index><title>List of Types</title>
+<indexentry><primaryie><link linkend='v4l2-std-id'>v4l2_std_id</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-buf-type'>v4l2_buf_type</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-colorspace'>v4l2_colorspace</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-ctrl-type'>v4l2_ctrl_type</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-exposure-auto-type'>v4l2_exposure_auto_type</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-field'>v4l2_field</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-frmivaltypes'>v4l2_frmivaltypes</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-frmsizetypes'>v4l2_frmsizetypes</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-memory'>v4l2_memory</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-mpeg-audio-ac3-bitrate'>v4l2_mpeg_audio_ac3_bitrate</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-mpeg-audio-crc'>v4l2_mpeg_audio_crc</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-mpeg-audio-emphasis'>v4l2_mpeg_audio_emphasis</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-mpeg-audio-encoding'>v4l2_mpeg_audio_encoding</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-mpeg-audio-l1-bitrate'>v4l2_mpeg_audio_l1_bitrate</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-mpeg-audio-l2-bitrate'>v4l2_mpeg_audio_l2_bitrate</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-mpeg-audio-l3-bitrate'>v4l2_mpeg_audio_l3_bitrate</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-mpeg-audio-mode'>v4l2_mpeg_audio_mode</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-mpeg-audio-mode-extension'>v4l2_mpeg_audio_mode_extension</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-mpeg-audio-sampling-freq'>v4l2_mpeg_audio_sampling_freq</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='chroma-spatial-filter-type'>v4l2_mpeg_cx2341x_video_chroma_spatial_filter_type</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='luma-spatial-filter-type'>v4l2_mpeg_cx2341x_video_luma_spatial_filter_type</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-mpeg-cx2341x-video-median-filter-type'>v4l2_mpeg_cx2341x_video_median_filter_type</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-mpeg-cx2341x-video-spatial-filter-mode'>v4l2_mpeg_cx2341x_video_spatial_filter_mode</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-mpeg-cx2341x-video-temporal-filter-mode'>v4l2_mpeg_cx2341x_video_temporal_filter_mode</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-mpeg-stream-type'>v4l2_mpeg_stream_type</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-mpeg-stream-vbi-fmt'>v4l2_mpeg_stream_vbi_fmt</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-mpeg-video-aspect'>v4l2_mpeg_video_aspect</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-mpeg-video-bitrate-mode'>v4l2_mpeg_video_bitrate_mode</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-mpeg-video-encoding'>v4l2_mpeg_video_encoding</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-power-line-frequency'>v4l2_power_line_frequency</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-priority'>v4l2_priority</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-tuner-type'>v4l2_tuner_type</link></primaryie></indexentry>
+<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-preemphasis'>v4l2_preemphasis</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-audio'>v4l2_audio</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-audioout'>v4l2_audioout</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-buffer'>v4l2_buffer</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-capability'>v4l2_capability</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-captureparm'>v4l2_captureparm</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-clip'>v4l2_clip</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-control'>v4l2_control</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-crop'>v4l2_crop</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-cropcap'>v4l2_cropcap</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-dbg-chip-ident'>v4l2_dbg_chip_ident</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-dbg-match'>v4l2_dbg_match</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-dbg-register'>v4l2_dbg_register</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-enc-idx'>v4l2_enc_idx</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-enc-idx-entry'>v4l2_enc_idx_entry</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-encoder-cmd'>v4l2_encoder_cmd</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-ext-control'>v4l2_ext_control</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-ext-controls'>v4l2_ext_controls</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-fmtdesc'>v4l2_fmtdesc</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-format'>v4l2_format</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-fract'>v4l2_fract</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-framebuffer'>v4l2_framebuffer</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-frequency'>v4l2_frequency</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-frmival-stepwise'>v4l2_frmival_stepwise</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-frmivalenum'>v4l2_frmivalenum</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-frmsize-discrete'>v4l2_frmsize_discrete</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-frmsize-stepwise'>v4l2_frmsize_stepwise</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-frmsizeenum'>v4l2_frmsizeenum</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-hw-freq-seek'>v4l2_hw_freq_seek</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-input'>v4l2_input</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-jpegcompression'>v4l2_jpegcompression</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-modulator'>v4l2_modulator</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-mpeg-vbi-fmt-ivtv'>v4l2_mpeg_vbi_fmt_ivtv</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-output'>v4l2_output</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-outputparm'>v4l2_outputparm</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-pix-format'>v4l2_pix_format</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-queryctrl'>v4l2_queryctrl</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-querymenu'>v4l2_querymenu</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-rect'>v4l2_rect</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-requestbuffers'>v4l2_requestbuffers</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-sliced-vbi-cap'>v4l2_sliced_vbi_cap</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-sliced-vbi-data'>v4l2_sliced_vbi_data</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-sliced-vbi-format'>v4l2_sliced_vbi_format</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-standard'>v4l2_standard</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-streamparm'>v4l2_streamparm</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-timecode'>v4l2_timecode</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-tuner'>v4l2_tuner</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-vbi-format'>v4l2_vbi_format</link></primaryie></indexentry>
+<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-window'>v4l2_window</link></primaryie></indexentry>
+</index>