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The linked list pBsaEllList contains elements of the struct bsaList_t:. This struct represents one BSA channel.

typedef struct {
    ELLNODE  node;
    ELLLIST  *pSlaveEllList;  // slave node
    char     bsa_name[64];    // bsa name
    char     bsa_type[32];    // bsa datatype

    int      firstParam;
    int      p_num[MAX_BSA_ARRAY];           // asyn parameter for number of average, asynFloat64Array, RO
    int      p_mean[MAX_BSA_ARRAY];          // asyn parameter for average value,     asynFloat64Array, RO
    int      p_rms2[MAX_BSA_ARRAY];          // asyn parameter for rms2 value,        asynFloat64Array, RO
    int      p_slope;                        // asyn parameter for linear conversion, asynFloat64, RW
    int      p_offset;                       // asyn parameter for linear conversion, asynFloat64, RW
    int      lastParam;

    double   slope;
    double   offset;

    bsaDataType_t type;

    devBsaPvt_t ppvt_num[MAX_BSA_ARRAY];
    devBsaPvt_t ppvt_mean[MAX_BSA_ARRAY];
    devBsaPvt_t ppvt_rms2[MAX_BSA_ARRAY];

    char     pname_num[MAX_BSA_ARRAY][64];
    char     pname_mean[MAX_BSA_ARRAY][64];
    char     pname_rms2[MAX_BSA_ARRAY][64];

    char     pname_slope[64];
    char     pname_offset[64];
    bool     doNotTouch;

} bsaList_t;

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• init_drvList:
  • This is identical to the BLD init_drvList.
• prep_drvAnonimous:
  • Returns an allocated but empty driver pointer that needs to be initialized
  • Calls init_drvList, then allocates memory for a new item in the linked list, initializes it, then adds it to the end of the linked list and returns linked list count.
• prep_drvByPort
  • Same as prep_drvAnonimous; create new driver item of linked list but with a specific port name string
• prep_drvByNamedRoot: 
  • Same as prep_drvAnonimous; create new driver item of linked list but with a specific named root string
• find_drvLast:. Returns the last driver found. If no driver is found in the linked list, NULL is returned.
  
  • Calls Starting by calling init_drvList to make sure a linked list is initialized
  • Counts , then counts the number of elements in the linked list.
  • If they are not 0, it returns the last element, otherwise returns NULLthe pointer to the empty list.
• find_drvByPort:
  • Returns a driver that matches the same port name. If not found, returns NULL
  • Calls init_drvList, then iterates on the linked list one element at a time starting from the first element. Once an element with a portName that is not NULL, and a string length of not zero, and a string identical to the argument port_name is found, it is returned, otherwise the next item is examined. If none is found, NULL is returned
• find_drvyNamedRoot:
  • Returns a driver that matches the same named root. If not found, returns NULL
  • Calls init_drvList, then iterates on the linked list one element at a time starting from the first element. Once an element with a named_root that is not NULL, and a string length of not zero, and a string identical to the argument name_root is found, it is returned, otherwise the next item is examined. If none is found, NULL is returned

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