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Jonathan Cameron
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Greg Kroah-Hartman
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Apr 25, 2012
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trunk/drivers/staging/iio/Documentation/sysfs-bus-iio-ad7192
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What: /sys/.../iio:deviceX/ac_excitation_en | ||
KernelVersion: 3.1.0 | ||
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. | ||
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What: /sys/.../iio:deviceX/bridge_switch_en | ||
KernelVersion: 3.1.0 | ||
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. |