When the file contains a "1" the bus is operated and periodically
does a push-pull cycle to write and read data from the
connected devices.
+
When writing a "0" or "1" the bus moves to the described state.
What: /sys/bus/siox/devices/siox-X/device_add
to add a new device dynamically. <type> is the name that is used to match
to a driver (similar to the platform bus). <inbytes> and <outbytes> define
the length of the input and output shift register in bytes respectively.
+
<statustype> defines the 4 bit device type that is check to identify connection
problems.
+
The new device is added to the end of the existing chain.
What: /sys/bus/siox/devices/siox-X/device_remove