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staging:iio:documentation pull a few sysfs entries out of main docs.

These two attributes are only used in the one driver. Whilst they
are fairly general I'm not entirely happy committing to them at
this stage.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

authored by

Jonathan Cameron and committed by
Greg Kroah-Hartman 49c36dff 8dc24597

+20 -21
-21
drivers/staging/iio/Documentation/sysfs-bus-iio
··· 728 728 Description: 729 729 This attribute is used to read the amount of quadrature error 730 730 present in the device at a given time. 731 - 732 - What: /sys/.../iio:deviceX/ac_excitation_en 733 - KernelVersion: 3.1.0 734 - Contact: linux-iio@vger.kernel.org 735 - Description: 736 - This attribute, if available, is used to enable the AC 737 - excitation mode found on some converters. In ac excitation mode, 738 - the polarity of the excitation voltage is reversed on 739 - alternate cycles, to eliminate DC errors. 740 - 741 - What: /sys/.../iio:deviceX/bridge_switch_en 742 - KernelVersion: 3.1.0 743 - Contact: linux-iio@vger.kernel.org 744 - Description: 745 - This attribute, if available, is used to close or open the 746 - bridge power down switch found on some converters. 747 - In bridge applications, such as strain gauges and load cells, 748 - the bridge itself consumes the majority of the current in the 749 - system. To minimize the current consumption of the system, 750 - the bridge can be disconnected (when it is not being used 751 - using the bridge_switch_en attribute.
+20
drivers/staging/iio/Documentation/sysfs-bus-iio-ad7192
··· 1 + What: /sys/.../iio:deviceX/ac_excitation_en 2 + KernelVersion: 3.1.0 3 + Contact: linux-iio@vger.kernel.org 4 + Description: 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 + 10 + What: /sys/.../iio:deviceX/bridge_switch_en 11 + KernelVersion: 3.1.0 12 + Contact: linux-iio@vger.kernel.org 13 + Description: 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.