0001 What: /sys/bus/iio/devices/iio:deviceX/ac_excitation_en
0002 KernelVersion:
0003 Contact: linux-iio@vger.kernel.org
0004 Description:
0005 This attribute, if available, is used to enable the AC
0006 excitation mode found on some converters. In ac excitation mode,
0007 the polarity of the excitation voltage is reversed on
0008 alternate cycles, to eliminate DC errors.
0009
0010 What: /sys/bus/iio/devices/iio:deviceX/bridge_switch_en
0011 KernelVersion:
0012 Contact: linux-iio@vger.kernel.org
0013 Description:
0014 This attribute, if available, is used to close or open the
0015 bridge power down switch found on some converters.
0016 In bridge applications, such as strain gauges and load cells,
0017 the bridge itself consumes the majority of the current in the
0018 system. To minimize the current consumption of the system,
0019 the bridge can be disconnected (when it is not being used
0020 using the bridge_switch_en attribute.
0021
0022 What: /sys/bus/iio/devices/iio:deviceX/in_voltagex_sys_calibration
0023 KernelVersion:
0024 Contact: linux-iio@vger.kernel.org
0025 Description:
0026 Initiates the system calibration procedure. This is done on a
0027 single channel at a time. Write '1' to start the calibration.
0028
0029 What: /sys/bus/iio/devices/iio:deviceX/in_voltage2-voltage2_shorted_raw
0030 KernelVersion:
0031 Contact: linux-iio@vger.kernel.org
0032 Description:
0033 Measure voltage from AIN2 pin connected to AIN(+)
0034 and AIN(-) shorted.
0035
0036 What: /sys/bus/iio/devices/iio:deviceX/in_voltagex_sys_calibration_mode_available
0037 KernelVersion:
0038 Contact: linux-iio@vger.kernel.org
0039 Description:
0040 Reading returns a list with the possible calibration modes.
0041 There are two available options:
0042 "zero_scale" - calibrate to zero scale
0043 "full_scale" - calibrate to full scale
0044
0045 What: /sys/bus/iio/devices/iio:deviceX/in_voltagex_sys_calibration_mode
0046 KernelVersion:
0047 Contact: linux-iio@vger.kernel.org
0048 Description:
0049 Sets up the calibration mode used in the system calibration
0050 procedure. Reading returns the current calibration mode.
0051 Writing sets the system calibration mode.
