41 lines
1.5 KiB
Plaintext
41 lines
1.5 KiB
Plaintext
Freescale MMA8x5x 3-Axis Orientation/Motion Detection Sensor series
|
|
(MMA8451/MMA8452/MMA8453/MMA8652/MMA8653)
|
|
|
|
The Freescale 3-Axis Orientation/Motion Detection Sensor is
|
|
connected to host processor via i2c.
|
|
The sensor can be polling for acceleration data or configure to
|
|
generates interrupts when a motion is detected.
|
|
|
|
Required properties:
|
|
|
|
- compatible : should be "fsl,mma8x5x"
|
|
- reg : i2c slave address of the device
|
|
- vdd-supply : power supply needed to power up the device.
|
|
- vio-supply : power supply needed for device IO and to pullup i2c bus.
|
|
- fsl,sensors-position : select from 0 to 7 depends on how the sensor is
|
|
mounting on the board, this will decide how the 3-axis reading
|
|
of data will be translated to X/Y/Z axis of acceleration data.
|
|
|
|
Optional properties:
|
|
Sensor can work on polling mode or interrupt mode, following interrupt
|
|
is required if the sensor need to work on interrupt mode.
|
|
- interrupt-parent : parent of interrupt.
|
|
- interrupts : sensor signal interrupt to indicate new data ready or
|
|
a motion is detected.
|
|
- fsl,use-interrupt : to enable interrupt mode.
|
|
- fsl,irq-gpio : First irq gpio which is to provide interrupts to host, same
|
|
as "interrupts" node. It will also contain active low or active
|
|
high information.
|
|
|
|
Example:
|
|
fsl@1c {
|
|
compatible = "fsl,mma8x5x";
|
|
reg = <0x1c>;
|
|
interrupt-parent = <&msmgpio>;
|
|
interrupts = <81 0x2>;
|
|
vdd-supply = <&pm8110_l19>;
|
|
vio-supply = <&pm8110_l14>;
|
|
fsl,sensors-position = <5>;
|
|
fsl,irq-gpio = <&msmgpio 0x81 0x02>;
|
|
fsl,use-interrupt;
|
|
}; |