diff options
Diffstat (limited to 'drivers/staging/iio/Documentation/sysfs-bus-iio')
| -rw-r--r-- | drivers/staging/iio/Documentation/sysfs-bus-iio | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/staging/iio/Documentation/sysfs-bus-iio b/drivers/staging/iio/Documentation/sysfs-bus-iio index 467c49a4725..c19dbf4ab24 100644 --- a/drivers/staging/iio/Documentation/sysfs-bus-iio +++ b/drivers/staging/iio/Documentation/sysfs-bus-iio @@ -2,7 +2,7 @@ What: /sys/bus/iio/devices/deviceX KernelVersion: 2.6.35 Contact: linux-iio@vger.kernel.org Description: - Hardware chip or device accessed by on communication port. + Hardware chip or device accessed by one communication port. Corresponds to a grouping of sensor channels. X is the IIO index of the device. @@ -711,3 +711,24 @@ Contact: linux-iio@xxxxxxxxxxxxxxx Description: This attribute is used to read the amount of quadrature error present in the device at a given time. + +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. + +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. |