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