struct dvb_ca

struct dvb_ca_en50221
Prev	Digital TV Conditional Access kABI	Next

Name

struct dvb_ca_en50221 — Structure describing a CA interface

Synopsis

struct dvb_ca_en50221 {
  struct module * owner;
  int (* read_attribute_mem) (struct dvb_ca_en50221 *ca,int slot, int address);
  int (* write_attribute_mem) (struct dvb_ca_en50221 *ca,int slot, int address, u8 value);
  int (* read_cam_control) (struct dvb_ca_en50221 *ca,int slot, u8 address);
  int (* write_cam_control) (struct dvb_ca_en50221 *ca,int slot, u8 address, u8 value);
  int (* slot_reset) (struct dvb_ca_en50221 *ca, int slot);
  int (* slot_shutdown) (struct dvb_ca_en50221 *ca, int slot);
  int (* slot_ts_enable) (struct dvb_ca_en50221 *ca, int slot);
  int (* poll_slot_status) (struct dvb_ca_en50221 *ca, int slot, int open);
  void * data;
  void * private;
};

Members

owner: the module owning this structure
read_attribute_mem: function for reading attribute memory on the CAM
write_attribute_mem: function for writing attribute memory on the CAM
read_cam_control: function for reading the control interface on the CAM
write_cam_control: function for reading the control interface on the CAM
slot_reset: function to reset the CAM slot
slot_shutdown: function to shutdown a CAM slot
slot_ts_enable: function to enable the Transport Stream on a CAM slot
poll_slot_status: function to poll slot status. Only necessary if DVB_CA_FLAG_EN50221_IRQ_CAMCHANGE is not set.
data: private data, used by caller.
private: Opaque data used by the dvb_ca core. Do not modify!

NOTE

the read_*, write_* and poll_slot_status functions will be called for different slots concurrently and need to use locks where and if appropriate. There will be no concurrent access to one slot.