4.1. CA Data Types

ca_slot_info

4.1.1. ca_slot_info_t

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;

ca_descr_info

4.1.2. ca_descr_info_t

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;

ca_caps

4.1.3. ca_caps_t

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;

ca_msg

4.1.4. ca_msg_t

/* 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;

ca_descr

4.1.5. ca_descr_t

typedef struct ca_descr {
    unsigned int index;
    unsigned int parity;
    unsigned char cw[8];
} ca_descr_t;

ca_pid

4.1.6. ca-pid

typedef struct ca_pid {
    unsigned int pid;
    int index;      /* -1 == disable*/
} ca_pid_t;