Documentation/DocBook/media/dvb/ca.xml - kernel/lockdown - Git at Google

 <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">
 <title>ca_slot_info_t</title>
  <programlisting>
 typedef struct ca_slot_info {
 	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_DESCR         8     /&#x22C6; built-in descrambler &#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">
 <title>ca_descr_info_t</title>
 <programlisting>
 typedef struct ca_descr_info {
 	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-caps">
 <title>ca_caps_t</title>
 <programlisting>
 typedef struct ca_caps {
 	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">
 <title>ca_msg_t</title>
 <programlisting>
 /&#x22C6; a message to/from a CI-CAM &#x22C6;/
 typedef struct ca_msg {
 	unsigned int index;
 	unsigned int type;
 	unsigned int length;
 	unsigned char msg[256];
 } ca_msg_t;
 </programlisting>

 </section>
 <section id="ca-descr">
 <title>ca_descr_t</title>
 <programlisting>
 typedef struct ca_descr {
 	unsigned int index;
 	unsigned int parity;
 	unsigned char cw[8];
 } ca_descr_t;
 </programlisting>
 </section>

 <section id="ca-pid">
 <title>ca-pid</title>
 <programlisting>
 typedef struct ca_pid {
 	unsigned int pid;
 	int index;		/&#x22C6; -1 == disable&#x22C6;/
 } ca_pid_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>RETURN VALUE</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>RETURN VALUE</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 id="CA_RESET"
 role="subsection"><title>CA_RESET</title>
 <para>DESCRIPTION
 </para>
 <informaltable><tgroup cols="1"><tbody><row><entry
  align="char">
 <para>This ioctl is undocumented. Documentation is welcome.</para>
 </entry>
  </row></tbody></tgroup></informaltable>
 <para>SYNOPSIS
 </para>
 <informaltable><tgroup cols="1"><tbody><row><entry
  align="char">
 <para>int ioctl(fd, int request = CA_RESET);
 </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><row><entry
  align="char">
 <para>int request</para>
 </entry><entry
  align="char">
 <para>Equals CA_RESET for this command.</para>
 </entry>
  </row></tbody></tgroup></informaltable>
 &return-value-dvb;
 </section>

 <section id="CA_GET_CAP"
 role="subsection"><title>CA_GET_CAP</title>
 <para>DESCRIPTION
 </para>
 <informaltable><tgroup cols="1"><tbody><row><entry
  align="char">
 <para>This ioctl is undocumented. Documentation is welcome.</para>
 </entry>
  </row></tbody></tgroup></informaltable>
 <para>SYNOPSIS
 </para>
 <informaltable><tgroup cols="1"><tbody><row><entry
  align="char">
 <para>int ioctl(fd, int request = CA_GET_CAP,
  ca_caps_t *);</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><row><entry
  align="char">
 <para>int request</para>
 </entry><entry
  align="char">
 <para>Equals CA_GET_CAP for this command.</para>
 </entry>
  </row><row><entry
  align="char">
 <para>ca_caps_t *
 </para>
 </entry><entry
  align="char">
 <para>Undocumented.</para>
 </entry>
  </row></tbody></tgroup></informaltable>
 &return-value-dvb;
 </section>

 <section id="CA_GET_SLOT_INFO"
 role="subsection"><title>CA_GET_SLOT_INFO</title>
 <para>DESCRIPTION
 </para>
 <informaltable><tgroup cols="1"><tbody><row><entry
  align="char">
 <para>This ioctl is undocumented. Documentation is welcome.</para>
 </entry>
  </row></tbody></tgroup></informaltable>
 <para>SYNOPSIS
 </para>
 <informaltable><tgroup cols="1"><tbody><row><entry
  align="char">
 <para>int ioctl(fd, int request = CA_GET_SLOT_INFO,
  ca_slot_info_t *);</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><row><entry
  align="char">
 <para>int request</para>
 </entry><entry
  align="char">
 <para>Equals CA_GET_SLOT_INFO for this command.</para>
 </entry>
  </row><row><entry
  align="char">
 <para>ca_slot_info_t *
 </para>
 </entry><entry
  align="char">
 <para>Undocumented.</para>
 </entry>
  </row></tbody></tgroup></informaltable>
 &return-value-dvb;
 </section>

 <section id="CA_GET_DESCR_INFO"
 role="subsection"><title>CA_GET_DESCR_INFO</title>
 <para>DESCRIPTION
 </para>
 <informaltable><tgroup cols="1"><tbody><row><entry
  align="char">
 <para>This ioctl is undocumented. Documentation is welcome.</para>
 </entry>
  </row></tbody></tgroup></informaltable>
 <para>SYNOPSIS
 </para>
 <informaltable><tgroup cols="1"><tbody><row><entry
  align="char">
 <para>int ioctl(fd, int request = CA_GET_DESCR_INFO,
  ca_descr_info_t *);</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><row><entry
  align="char">
 <para>int request</para>
 </entry><entry
  align="char">
 <para>Equals CA_GET_DESCR_INFO for this command.</para>
 </entry>
  </row><row><entry
  align="char">
 <para>ca_descr_info_t *
 </para>
 </entry><entry
  align="char">
 <para>Undocumented.</para>
 </entry>
  </row></tbody></tgroup></informaltable>
 &return-value-dvb;
 </section>

 <section id="CA_GET_MSG"
 role="subsection"><title>CA_GET_MSG</title>
 <para>DESCRIPTION
 </para>
 <informaltable><tgroup cols="1"><tbody><row><entry
  align="char">
 <para>This ioctl is undocumented. Documentation is welcome.</para>
 </entry>
  </row></tbody></tgroup></informaltable>
 <para>SYNOPSIS
 </para>
 <informaltable><tgroup cols="1"><tbody><row><entry
  align="char">
 <para>int ioctl(fd, int request = CA_GET_MSG,
  ca_msg_t *);</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><row><entry
  align="char">
 <para>int request</para>
 </entry><entry
  align="char">
 <para>Equals CA_GET_MSG for this command.</para>
 </entry>
  </row><row><entry
  align="char">
 <para>ca_msg_t *
 </para>
 </entry><entry
  align="char">
 <para>Undocumented.</para>
 </entry>
  </row></tbody></tgroup></informaltable>
 &return-value-dvb;
 </section>

 <section id="CA_SEND_MSG"
 role="subsection"><title>CA_SEND_MSG</title>
 <para>DESCRIPTION
 </para>
 <informaltable><tgroup cols="1"><tbody><row><entry
  align="char">
 <para>This ioctl is undocumented. Documentation is welcome.</para>
 </entry>
  </row></tbody></tgroup></informaltable>
 <para>SYNOPSIS
 </para>
 <informaltable><tgroup cols="1"><tbody><row><entry
  align="char">
 <para>int ioctl(fd, int request = CA_SEND_MSG,
  ca_msg_t *);</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><row><entry
  align="char">
 <para>int request</para>
 </entry><entry
  align="char">
 <para>Equals CA_SEND_MSG for this command.</para>
 </entry>
  </row><row><entry
  align="char">
 <para>ca_msg_t *
 </para>
 </entry><entry
  align="char">
 <para>Undocumented.</para>
 </entry>
  </row></tbody></tgroup></informaltable>
 &return-value-dvb;
 </section>

 <section id="CA_SET_DESCR"
 role="subsection"><title>CA_SET_DESCR</title>
 <para>DESCRIPTION
 </para>
 <informaltable><tgroup cols="1"><tbody><row><entry
  align="char">
 <para>This ioctl is undocumented. Documentation is welcome.</para>
 </entry>
  </row></tbody></tgroup></informaltable>
 <para>SYNOPSIS
 </para>
 <informaltable><tgroup cols="1"><tbody><row><entry
  align="char">
 <para>int ioctl(fd, int request = CA_SET_DESCR,
  ca_descr_t *);</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><row><entry
  align="char">
 <para>int request</para>
 </entry><entry
  align="char">
 <para>Equals CA_SET_DESCR for this command.</para>
 </entry>
  </row><row><entry
  align="char">
 <para>ca_descr_t *
 </para>
 </entry><entry
  align="char">
 <para>Undocumented.</para>
 </entry>
  </row></tbody></tgroup></informaltable>
 &return-value-dvb;
 </section>

 <section id="CA_SET_PID"
 role="subsection"><title>CA_SET_PID</title>
 <para>DESCRIPTION
 </para>
 <informaltable><tgroup cols="1"><tbody><row><entry
  align="char">
 <para>This ioctl is undocumented. Documentation is welcome.</para>
 </entry>
  </row></tbody></tgroup></informaltable>
 <para>SYNOPSIS
 </para>
 <informaltable><tgroup cols="1"><tbody><row><entry
  align="char">
 <para>int ioctl(fd, int request = CA_SET_PID,
  ca_pid_t *);</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><row><entry
  align="char">
 <para>int request</para>
 </entry><entry
  align="char">
 <para>Equals CA_SET_PID for this command.</para>
 </entry>
  </row><row><entry
  align="char">
 <para>ca_pid_t *
 </para>
 </entry><entry
  align="char">
 <para>Undocumented.</para>
 </entry>
  </row></tbody></tgroup></informaltable>
 &return-value-dvb;
 </section>

 </section>
	<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">
	<title>ca_slot_info_t</title>
	<programlisting>
	typedef struct ca_slot_info {
	int num; /⋆ slot number ⋆/

	int type; /⋆ CA interface this slot supports ⋆/
	#define CA_CI 1 /⋆ CI high level interface ⋆/
	#define CA_CI_LINK 2 /⋆ CI link layer level interface ⋆/
	#define CA_CI_PHYS 4 /⋆ CI physical layer level interface ⋆/
	#define CA_DESCR 8 /⋆ built-in descrambler ⋆/
	#define CA_SC 128 /⋆ simple smart card interface ⋆/

	unsigned int flags;
	#define CA_CI_MODULE_PRESENT 1 /⋆ module (or card) inserted ⋆/
	#define CA_CI_MODULE_READY 2
	} ca_slot_info_t;
	</programlisting>

	</section>
	<section id="ca-descr-info">
	<title>ca_descr_info_t</title>
	<programlisting>
	typedef struct ca_descr_info {
	unsigned int num; /⋆ number of available descramblers (keys) ⋆/
	unsigned int type; /⋆ type of supported scrambling system ⋆/
	#define CA_ECD 1
	#define CA_NDS 2
	#define CA_DSS 4
	} ca_descr_info_t;
	</programlisting>

	</section>
	<section id="ca-caps">
	<title>ca_caps_t</title>
	<programlisting>
	typedef struct ca_caps {
	unsigned int slot_num; /⋆ total number of CA card and module slots ⋆/
	unsigned int slot_type; /⋆ OR of all supported types ⋆/
	unsigned int descr_num; /⋆ total number of descrambler slots (keys) ⋆/
	unsigned int descr_type;/⋆ OR of all supported types ⋆/
	} ca_cap_t;
	</programlisting>

	</section>
	<section id="ca-msg">
	<title>ca_msg_t</title>
	<programlisting>
	/⋆ a message to/from a CI-CAM ⋆/
	typedef struct ca_msg {
	unsigned int index;
	unsigned int type;
	unsigned int length;
	unsigned char msg[256];
	} ca_msg_t;
	</programlisting>

	</section>
	<section id="ca-descr">
	<title>ca_descr_t</title>
	<programlisting>
	typedef struct ca_descr {
	unsigned int index;
	unsigned int parity;
	unsigned char cw[8];
	} ca_descr_t;
	</programlisting>
	</section>

	<section id="ca-pid">
	<title>ca-pid</title>
	<programlisting>
	typedef struct ca_pid {
	unsigned int pid;
	int index; /⋆ -1 == disable⋆/
	} ca_pid_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 ⋆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>RETURN VALUE</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>RETURN VALUE</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 id="CA_RESET"
	role="subsection"><title>CA_RESET</title>
	<para>DESCRIPTION
	</para>
	<informaltable><tgroup cols="1"><tbody><row><entry
	align="char">
	<para>This ioctl is undocumented. Documentation is welcome.</para>
	</entry>
	</row></tbody></tgroup></informaltable>
	<para>SYNOPSIS
	</para>
	<informaltable><tgroup cols="1"><tbody><row><entry
	align="char">
	<para>int ioctl(fd, int request = CA_RESET);
	</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><row><entry
	align="char">
	<para>int request</para>
	</entry><entry
	align="char">
	<para>Equals CA_RESET for this command.</para>
	</entry>
	</row></tbody></tgroup></informaltable>
	&return-value-dvb;
	</section>

	<section id="CA_GET_CAP"
	role="subsection"><title>CA_GET_CAP</title>
	<para>DESCRIPTION
	</para>
	<informaltable><tgroup cols="1"><tbody><row><entry
	align="char">
	<para>This ioctl is undocumented. Documentation is welcome.</para>
	</entry>
	</row></tbody></tgroup></informaltable>
	<para>SYNOPSIS
	</para>
	<informaltable><tgroup cols="1"><tbody><row><entry
	align="char">
	<para>int ioctl(fd, int request = CA_GET_CAP,
	ca_caps_t *);</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><row><entry
	align="char">
	<para>int request</para>
	</entry><entry
	align="char">
	<para>Equals CA_GET_CAP for this command.</para>
	</entry>
	</row><row><entry
	align="char">
	<para>ca_caps_t *
	</para>
	</entry><entry
	align="char">
	<para>Undocumented.</para>
	</entry>
	</row></tbody></tgroup></informaltable>
	&return-value-dvb;
	</section>

	<section id="CA_GET_SLOT_INFO"
	role="subsection"><title>CA_GET_SLOT_INFO</title>
	<para>DESCRIPTION
	</para>
	<informaltable><tgroup cols="1"><tbody><row><entry
	align="char">
	<para>This ioctl is undocumented. Documentation is welcome.</para>
	</entry>
	</row></tbody></tgroup></informaltable>
	<para>SYNOPSIS
	</para>
	<informaltable><tgroup cols="1"><tbody><row><entry
	align="char">
	<para>int ioctl(fd, int request = CA_GET_SLOT_INFO,
	ca_slot_info_t *);</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><row><entry
	align="char">
	<para>int request</para>
	</entry><entry
	align="char">
	<para>Equals CA_GET_SLOT_INFO for this command.</para>
	</entry>
	</row><row><entry
	align="char">
	<para>ca_slot_info_t *
	</para>
	</entry><entry
	align="char">
	<para>Undocumented.</para>
	</entry>
	</row></tbody></tgroup></informaltable>
	&return-value-dvb;
	</section>

	<section id="CA_GET_DESCR_INFO"
	role="subsection"><title>CA_GET_DESCR_INFO</title>
	<para>DESCRIPTION
	</para>
	<informaltable><tgroup cols="1"><tbody><row><entry
	align="char">
	<para>This ioctl is undocumented. Documentation is welcome.</para>
	</entry>
	</row></tbody></tgroup></informaltable>
	<para>SYNOPSIS
	</para>
	<informaltable><tgroup cols="1"><tbody><row><entry
	align="char">
	<para>int ioctl(fd, int request = CA_GET_DESCR_INFO,
	ca_descr_info_t *);</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><row><entry
	align="char">
	<para>int request</para>
	</entry><entry
	align="char">
	<para>Equals CA_GET_DESCR_INFO for this command.</para>
	</entry>
	</row><row><entry
	align="char">
	<para>ca_descr_info_t *
	</para>
	</entry><entry
	align="char">
	<para>Undocumented.</para>
	</entry>
	</row></tbody></tgroup></informaltable>
	&return-value-dvb;
	</section>

	<section id="CA_GET_MSG"
	role="subsection"><title>CA_GET_MSG</title>
	<para>DESCRIPTION
	</para>
	<informaltable><tgroup cols="1"><tbody><row><entry
	align="char">
	<para>This ioctl is undocumented. Documentation is welcome.</para>
	</entry>
	</row></tbody></tgroup></informaltable>
	<para>SYNOPSIS
	</para>
	<informaltable><tgroup cols="1"><tbody><row><entry
	align="char">
	<para>int ioctl(fd, int request = CA_GET_MSG,
	ca_msg_t *);</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><row><entry
	align="char">
	<para>int request</para>
	</entry><entry
	align="char">
	<para>Equals CA_GET_MSG for this command.</para>
	</entry>
	</row><row><entry
	align="char">
	<para>ca_msg_t *
	</para>
	</entry><entry
	align="char">
	<para>Undocumented.</para>
	</entry>
	</row></tbody></tgroup></informaltable>
	&return-value-dvb;
	</section>

	<section id="CA_SEND_MSG"
	role="subsection"><title>CA_SEND_MSG</title>
	<para>DESCRIPTION
	</para>
	<informaltable><tgroup cols="1"><tbody><row><entry
	align="char">
	<para>This ioctl is undocumented. Documentation is welcome.</para>
	</entry>
	</row></tbody></tgroup></informaltable>
	<para>SYNOPSIS
	</para>
	<informaltable><tgroup cols="1"><tbody><row><entry
	align="char">
	<para>int ioctl(fd, int request = CA_SEND_MSG,
	ca_msg_t *);</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><row><entry
	align="char">
	<para>int request</para>
	</entry><entry
	align="char">
	<para>Equals CA_SEND_MSG for this command.</para>
	</entry>
	</row><row><entry
	align="char">
	<para>ca_msg_t *
	</para>
	</entry><entry
	align="char">
	<para>Undocumented.</para>
	</entry>
	</row></tbody></tgroup></informaltable>
	&return-value-dvb;
	</section>

	<section id="CA_SET_DESCR"
	role="subsection"><title>CA_SET_DESCR</title>
	<para>DESCRIPTION
	</para>
	<informaltable><tgroup cols="1"><tbody><row><entry
	align="char">
	<para>This ioctl is undocumented. Documentation is welcome.</para>
	</entry>
	</row></tbody></tgroup></informaltable>
	<para>SYNOPSIS
	</para>
	<informaltable><tgroup cols="1"><tbody><row><entry
	align="char">
	<para>int ioctl(fd, int request = CA_SET_DESCR,
	ca_descr_t *);</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><row><entry
	align="char">
	<para>int request</para>
	</entry><entry
	align="char">
	<para>Equals CA_SET_DESCR for this command.</para>
	</entry>
	</row><row><entry
	align="char">
	<para>ca_descr_t *
	</para>
	</entry><entry
	align="char">
	<para>Undocumented.</para>
	</entry>
	</row></tbody></tgroup></informaltable>
	&return-value-dvb;
	</section>

	<section id="CA_SET_PID"
	role="subsection"><title>CA_SET_PID</title>
	<para>DESCRIPTION
	</para>
	<informaltable><tgroup cols="1"><tbody><row><entry
	align="char">
	<para>This ioctl is undocumented. Documentation is welcome.</para>
	</entry>
	</row></tbody></tgroup></informaltable>
	<para>SYNOPSIS
	</para>
	<informaltable><tgroup cols="1"><tbody><row><entry
	align="char">
	<para>int ioctl(fd, int request = CA_SET_PID,
	ca_pid_t *);</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><row><entry
	align="char">
	<para>int request</para>
	</entry><entry
	align="char">
	<para>Equals CA_SET_PID for this command.</para>
	</entry>
	</row><row><entry
	align="char">
	<para>ca_pid_t *
	</para>
	</entry><entry
	align="char">
	<para>Undocumented.</para>
	</entry>
	</row></tbody></tgroup></informaltable>
	&return-value-dvb;
	</section>

	</section>