# IridiumsbdStatus (UORB message)
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uint64 timestamp # time since system start (microseconds)
uint64 last_heartbeat # timestamp of the last successful sbd session
uint16 tx_buf_write_index # current size of the tx buffer
uint16 rx_buf_read_index # the rx buffer is parsed up to that index
uint16 rx_buf_end_index # current size of the rx buffer
uint16 failed_sbd_sessions # number of failed sbd sessions
uint16 successful_sbd_sessions # number of successful sbd sessions
uint16 num_tx_buf_reset # number of times the tx buffer was reset
uint8 signal_quality # current signal quality, 0 is no signal, 5 the best
uint8 state # current state of the driver, see the satcom_state of IridiumSBD.h for the definition
bool ring_pending # indicates if a ring call is pending
bool tx_buf_write_pending # indicates if a tx buffer write is pending
bool tx_session_pending # indicates if a tx session is pending
bool rx_read_pending # indicates if a rx read is pending
bool rx_session_pending # indicates if a rx session is pending