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4d112ebd02
Add common calibration nodes for sigma delta adc. Signed-off-by: Guillaume Ranquet <granquet@baylibre.com> Link: https://patch.msgid.link/20241202-ad411x_calibration-v3-2-beb6aeec39e2@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
27 lines
1.1 KiB
Text
27 lines
1.1 KiB
Text
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_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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