Provides interfaces to handle Digital TV devices. More...
Include dependency graph for dvb-dev.h:
Go to the source code of this file.
Data Structures | |
| struct | dvb_dev_list |
| Digital TV device node properties. More... | |
| struct | dvb_device |
| Digital TV list of devices. More... | |
Typedefs | |
| typedef int(* | dvb_dev_change_t) (char *sysname, enum dvb_dev_change_type type, void *priv) |
| Describes a callback for dvb_dev_find() More... | |
Enumerations | |
| enum | dvb_dev_type { DVB_DEVICE_FRONTEND , DVB_DEVICE_DEMUX , DVB_DEVICE_DVR , DVB_DEVICE_NET , DVB_DEVICE_CA , DVB_DEVICE_CA_SEC , DVB_DEVICE_VIDEO , DVB_DEVICE_AUDIO } |
| Type of a device entry to search. More... | |
| enum | dvb_dev_change_type { DVB_DEV_ADD , DVB_DEV_CHANGE , DVB_DEV_REMOVE } |
| Describes the type of change to be notifier_delay. More... | |
Functions | |
| struct dvb_device * | dvb_dev_alloc (void) |
| Allocate a struct dvb_device. More... | |
| void | dvb_dev_free (struct dvb_device *dvb) |
| free a struct dvb_device More... | |
| int | dvb_dev_find (struct dvb_device *dvb, dvb_dev_change_t handler, void *user_priv) |
| finds all DVB devices on the local machine More... | |
| struct dvb_dev_list * | dvb_dev_seek_by_adapter (struct dvb_device *dvb, unsigned int adapter, unsigned int num, enum dvb_dev_type type) |
| Find a device that matches the search criteria given by this functions's parameters. More... | |
| struct dvb_dev_list * | dvb_get_dev_info (struct dvb_device *dvb, const char *sysname) |
| Return data about a device from its sysname. More... | |
| void | dvb_dev_stop_monitor (struct dvb_device *dvb) |
| Stop the dvb_dev_find loop. More... | |
| void | dvb_dev_set_logpriv (struct dvb_device *dvb, unsigned verbose, dvb_logfunc_priv logfunc, void *logpriv) |
| Sets the DVB verbosity and log function with context private data. More... | |
| void | dvb_dev_set_log (struct dvb_device *dvb, unsigned verbose, dvb_logfunc logfunc) |
| Sets the DVB verbosity and log function. More... | |
| struct dvb_open_descriptor * | dvb_dev_open (struct dvb_device *dvb, const char *sysname, int flags) |
| Opens a dvb device. More... | |
| void | dvb_dev_close (struct dvb_open_descriptor *open_dev) |
| Closes a dvb device. More... | |
| int | dvb_dev_get_fd (struct dvb_open_descriptor *open_dev) |
| returns fd from a local device This will not work for remote devices. More... | |
| ssize_t | dvb_dev_read (struct dvb_open_descriptor *open_dev, void *buf, size_t count) |
| read from a dvb demux or dvr file More... | |
| void | dvb_dev_dmx_stop (struct dvb_open_descriptor *open_dev) |
| Stops the demux filter for a given file descriptor. More... | |
| int | dvb_dev_set_bufsize (struct dvb_open_descriptor *open_dev, int buffersize) |
| Start a demux or dvr buffer size. More... | |
| int | dvb_dev_dmx_set_pesfilter (struct dvb_open_descriptor *open_dev, int pid, dmx_pes_type_t type, dmx_output_t output, int buffersize) |
| Start a filter for a MPEG-TS Packetized Elementary Stream (PES) More... | |
| int | dvb_dev_dmx_set_section_filter (struct dvb_open_descriptor *open_dev, int pid, unsigned filtsize, unsigned char *filter, unsigned char *mask, unsigned char *mode, unsigned int flags) |
| Sets a MPEG-TS section filter. More... | |
| int | dvb_dev_dmx_get_pmt_pid (struct dvb_open_descriptor *open_dev, int sid) |
| read the contents of the MPEG-TS PAT table, seeking for an specific service ID More... | |
| struct dvb_v5_descriptors * | dvb_dev_scan (struct dvb_open_descriptor *open_dev, struct dvb_entry *entry, check_frontend_t *check_frontend, void *args, unsigned other_nit, unsigned timeout_multiply) |
| Scans a DVB dvb_add_scaned_transponder. More... | |
| static int | dvb_dev_remote_init (struct dvb_device *d, char *server, int port) |
Detailed Description
Provides interfaces to handle Digital TV devices.
- Copyright
- GNU Lesser General Public License version 2.1 (LGPLv2.1)
Digital TV device node file names depend on udev configuration. For example, while frontends are typically found at/dev/dvb/adapter?/frontend?, the actual file name can vary from system to system, depending on the udev ruleset.
The libdvbv5 provides a set of functions to allow detecting and getting the device paths in a sane way, via libudev.
- Bug Report
- Please submit bug reports and patches to linux.nosp@m.-med.nosp@m.ia@vg.nosp@m.er.k.nosp@m.ernel.nosp@m..org
Definition in file dvb-dev.h.
Typedef Documentation
◆ dvb_dev_change_t
| typedef int(* dvb_dev_change_t) (char *sysname, enum dvb_dev_change_type type, void *priv) |
Describes a callback for dvb_dev_find()
sysname: Kernel's system name for the device (dvb?.frontend?, for example) @type: type of change, as defined by enum dvb_dev_change_type
- Note
- : the returned string should be freed with free().
Enumeration Type Documentation
◆ dvb_dev_change_type
| enum dvb_dev_change_type |
Function Documentation
◆ dvb_dev_remote_init()
|
inlinestatic |
- Examples
- dvb-fe-tool.c, and dvbv5-zap.c.
◆ dvb_dev_seek_by_adapter()
| struct dvb_dev_list * dvb_dev_seek_by_adapter | ( | struct dvb_device * | dvb, |
| unsigned int | adapter, | ||
| unsigned int | num, | ||
| enum dvb_dev_type | type | ||
| ) |
Find a device that matches the search criteria given by this functions's parameters.
- Parameters
-
dvb pointer to struct dvb_device to be used adapter Adapter number, as defined internally at the Kernel. Always start with 0; num Digital TV device number (e. g. frontend0, net0, etc); type Type of the device, as given by enum dvb_dev_type;
- Returns
- returns a pointer to a struct dvb_dev_list object or NULL if the desired device was not found.
- Examples
- dvb-fe-tool.c, dvbv5-scan.c, and dvbv5-zap.c.
◆ dvb_get_dev_info()
| struct dvb_dev_list * dvb_get_dev_info | ( | struct dvb_device * | dvb, |
| const char * | sysname | ||
| ) |
Return data about a device from its sysname.
- Parameters
-
dvb pointer to struct dvb_device to be used sysname Kernel's name of the device to be opened, as obtained via dvb_dev_seek_by_adapter() or via dvb_dev_find().
- Returns
- returns a pointer to a struct dvb_dev_list object or NULL if the desired device was not found.
