timer_call
struct timer_call ** pprev;
struct timer_call * next;
void ldm_request_timer(PVBUS vbus, struct timer_call * tc);
void ldm_remove_timer(PVBUS vbus, struct timer_call * tc);
struct timer_call ** pprev;
struct timer_call * next;
void ldm_request_timer(PVBUS vbus, struct timer_call * tc);
void ldm_remove_timer(PVBUS vbus, struct timer_call * tc);