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a7c4132d25
Add FIFO support, where bmi160 hardware FIFO is copied in local fifo. Add rudimentary support for single/double tap and lift detection. BUG=chrome-os-partner:39900 BRANCH=smaug TEST=Check on F411 that FIFO data is retrieved and correct. Check on Smaug as well, with proper kernel the collect the FIFO: - check that increasing sampling_frequency we are collecting the FIFO less often - check no frames are lost. - check tap/lift interrupts are working - if latency is less than 100ms, check we are collecting much faster. Change-Id: Ic2317c27fad0ef31dacd6e18cd5f71ccd2cec807 Signed-off-by: Gwendal Grignou <gwendal@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/274227