Batch reading of 8 samples (48 bytes) at a time from the sensor. This
reduces the number of transactions - which can notably improve
performance on i2c.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Fix inverted check for fifo empty. The fifo is empty when the number
of entries in the fifo is zero.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Refactor the low-level "bulk sensor" management code in the mcu. This
updates the sensor_adxl345.c, sensor_mpu9250.c, sensor_lis2dw.c, and
sensor_angle.c code to use the same "bulk sensor" messages. All of
these sensors will now send "sensor_bulk_data" and
"sensor_bulk_status" messages.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
