1 What: /sys/bus/iio/devices/iio:deviceX/ac_excitation_en
3 Contact: linux-iio@vger.kernel.org
5 This attribute, if available, is used to enable the AC
6 excitation mode found on some converters. In ac excitation mode,
7 the polarity of the excitation voltage is reversed on
8 alternate cycles, to eliminate DC errors.
10 What: /sys/bus/iio/devices/iio:deviceX/bridge_switch_en
12 Contact: linux-iio@vger.kernel.org
14 This attribute, if available, is used to close or open the
15 bridge power down switch found on some converters.
16 In bridge applications, such as strain gauges and load cells,
17 the bridge itself consumes the majority of the current in the
18 system. To minimize the current consumption of the system,
19 the bridge can be disconnected (when it is not being used
20 using the bridge_switch_en attribute.
22 What: /sys/bus/iio/devices/iio:deviceX/in_voltagex_sys_calibration
24 Contact: linux-iio@vger.kernel.org
26 Initiates the system calibration procedure. This is done on a
27 single channel at a time. Write '1' to start the calibration.
29 What: /sys/bus/iio/devices/iio:deviceX/in_voltage2-voltage2_shorted_raw
31 Contact: linux-iio@vger.kernel.org
33 Measure voltage from AIN2 pin connected to AIN(+)
36 What: /sys/bus/iio/devices/iio:deviceX/in_voltagex_sys_calibration_mode_available
38 Contact: linux-iio@vger.kernel.org
40 Reading returns a list with the possible calibration modes.
41 There are two available options:
42 "zero_scale" - calibrate to zero scale
43 "full_scale" - calibrate to full scale
45 What: /sys/bus/iio/devices/iio:deviceX/in_voltagex_sys_calibration_mode
47 Contact: linux-iio@vger.kernel.org
49 Sets up the calibration mode used in the system calibration
50 procedure. Reading returns the current calibration mode.
51 Writing sets the system calibration mode.