| What: /sys/bus/iio/devices/iio:deviceX/ac_excitation_en |
| KernelVersion: |
| Contact: linux-iio@vger.kernel.org |
| Description: |
| This attribute, if available, is used to enable the AC |
| excitation mode found on some converters. In ac excitation mode, |
| the polarity of the excitation voltage is reversed on |
| alternate cycles, to eliminate DC errors. |
| |
| What: /sys/bus/iio/devices/iio:deviceX/bridge_switch_en |
| KernelVersion: |
| Contact: linux-iio@vger.kernel.org |
| Description: |
| This attribute, if available, is used to close or open the |
| bridge power down switch found on some converters. |
| In bridge applications, such as strain gauges and load cells, |
| the bridge itself consumes the majority of the current in the |
| system. To minimize the current consumption of the system, |
| the bridge can be disconnected (when it is not being used |
| using the bridge_switch_en attribute. |
| |
| What: /sys/bus/iio/devices/iio:deviceX/in_voltagex_sys_calibration |
| KernelVersion: |
| Contact: linux-iio@vger.kernel.org |
| Description: |
| Initiates the system calibration procedure. This is done on a |
| single channel at a time. Write '1' to start the calibration. |
| |
| What: /sys/bus/iio/devices/iio:deviceX/in_voltage2-voltage2_shorted_raw |
| KernelVersion: |
| Contact: linux-iio@vger.kernel.org |
| Description: |
| Measure voltage from AIN2 pin connected to AIN(+) |
| and AIN(-) shorted. |
| |
| What: /sys/bus/iio/devices/iio:deviceX/in_voltagex_sys_calibration_mode_available |
| KernelVersion: |
| Contact: linux-iio@vger.kernel.org |
| Description: |
| Reading returns a list with the possible calibration modes. |
| There are two available options: |
| "zero_scale" - calibrate to zero scale |
| "full_scale" - calibrate to full scale |
| |
| What: /sys/bus/iio/devices/iio:deviceX/in_voltagex_sys_calibration_mode |
| KernelVersion: |
| Contact: linux-iio@vger.kernel.org |
| Description: |
| Sets up the calibration mode used in the system calibration |
| procedure. Reading returns the current calibration mode. |
| Writing sets the system calibration mode. |
