ng_btsocket_sco_pcb
LIST_ENTRY(ng_btsocket_sco_pcb) next; /* link to next PCB */
typedef struct ng_btsocket_sco_pcb ng_btsocket_sco_pcb_t;
typedef struct ng_btsocket_sco_pcb * ng_btsocket_sco_pcb_p;
((struct ng_btsocket_sco_pcb *)((so)->so_pcb))
static LIST_HEAD(, ng_btsocket_sco_pcb) ng_btsocket_sco_sockets;