| commit | a88bfe78583026eb9f21d4014ba481b22b66cee3 | [log] [tgz] |
|---|---|---|
| author | Irina Tirdea <[email protected]> | Mon Nov 10 14:45:32 2014 +0200 |
| committer | Jonathan Cameron <[email protected]> | Sat Nov 22 11:05:51 2014 +0000 |
| tree | 5aab15a95c90caa83a08595a3353e779046a2905 | |
| parent | 1843c2f3def16740eb6d129a9790c32dd21aa5ea [diff] |
iio: core: Introduce STEPS channel, ENABLE mask and INSTANCE event These changes are needed to support the functionality of a pedometer. A pedometer has two basic functionalities: step counter and step detector. The step counter needs to be enabled and then it will count the steps in its hardware register. Whenever the application needs to check the step count, it will read the step counter register. To support the step counter a new channel type STEPS is added. Since the pedometer needs to be enabled first so that the hardware can count and store the steps, we need a specific ENABLE channel info mask. The step detector will generate an interrupt each time a step is detected. To support this functionality we add a new event type INSTANCE. For more information on the Android requirements for step counter and step detector see: http://source.android.com/devices/sensors/composite_sensors.html#counter and http://source.android.com/devices/sensors/composite_sensors.html#detector. A device that has the pedometer functionality this interface needs to support is Freescale's MMA9553L: http://www.freescale.com/files/sensors/doc/ref_manual/MMA9553LSWRM.pdf Signed-off-by: Irina Tirdea <[email protected]> Signed-off-by: Daniel Baluta <[email protected]> Signed-off-by: Jonathan Cameron <[email protected]>