init.sh: refine the rule of has_sensors

Allow to set has_sensors variable via cmdline HAS_SENSORS=true/false.

For sensors of iio type, if there is no acceleration sensors, treat it
as no sensors.

diff --git a/init.sh b/init.sh
index c77d483..07d463e 100644 (file)
--- a/init.sh
+++ b/init.sh
@@ -273,13 +273,16 @@ function init_hal_sensors()
        # has iio sensor-hub?
        if [ -n "`ls /sys/bus/iio/devices/iio:device* 2> /dev/null`" ]; then
                busybox chown -R 1000.1000 /sys/bus/iio/devices/iio:device*/
+               [ -n "`ls /sys/bus/iio/devices/iio:device*/in_accel_x_raw 2> /dev/null`" ] && has_sensors=true
                hal_sensors=iio
        elif lsmod | grep -q lis3lv02d_i2c; then
                hal_sensors=hdaps
+               has_sensors=true
+       elif [ "$hal_sensors" != "kbd" ]; then
+               has_sensors=${HAS_SENSORS:-true}
        fi
 
        set_property ro.hardware.sensors $hal_sensors
-       [ "$hal_sensors" != "kbd" ] && has_sensors=true
        set_property config.override_forced_orient $has_sensors
 }