Recon MOD Live User Manual download pdf (Page 25)

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Sensors – FIFO Mode!

•  Even before KitKat’s batch mode we had to provide

support for FIFO mode in JellyBean"

•  The reason behind this is consumption. For example, a

developer might want to capture sensor data but due to

consumption we want minimize data transfer between

layers – Kernel to Native User Space to Java"

•  When designing our hardware we chose sensors that have

some memory and the kernel pulls the data only when the

sensor is almost full"

•  User space driver copies a burst of raw sensor data from

the kernel driver only when the HW FIFO has ﬁlled"

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Recon MOD Live User Manual Page 25