usbecm_state
_NOTE(MUTEX_PROTECTS_DATA(usbecm_state::ecm_mutex, usbecm_state))
_NOTE(MUTEX_PROTECTS_DATA(usbecm_state::ecm_mutex, usbecm_statistics))
_NOTE(DATA_READABLE_WITHOUT_LOCK(usbecm_state::{
typedef struct usbecm_state usbecm_state_t;