1What: /sys/.../iio:deviceX/ac_excitation_en 2KernelVersion: 3.1.0 3Contact: linux-iio@vger.kernel.org 4Description: 5 This attribute, if available, is used to enable the AC 6 excitation mode found on some converters. In ac excitation mode, 7 the polarity of the excitation voltage is reversed on 8 alternate cycles, to eliminate DC errors. 9 10What: /sys/.../iio:deviceX/bridge_switch_en 11KernelVersion: 3.1.0 12Contact: linux-iio@vger.kernel.org 13Description: 14 This attribute, if available, is used to close or open the 15 bridge power down switch found on some converters. 16 In bridge applications, such as strain gauges and load cells, 17 the bridge itself consumes the majority of the current in the 18 system. To minimize the current consumption of the system, 19 the bridge can be disconnected (when it is not being used 20 using the bridge_switch_en attribute. 21