<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE context [
	<!ELEMENT context (device)*>
	<!ELEMENT device (channel | attribute)*>
	<!ELEMENT channel (attribute)*>
	<!ELEMENT attribute EMPTY>
	<!ATTLIST context name CDATA #REQUIRED>
	<!ATTLIST device id CDATA #REQUIRED name CDATA #IMPLIED>
	<!ATTLIST channel id CDATA #REQUIRED type CDATA #REQUIRED name CDATA #IMPLIED>
	<!ATTLIST attribute name CDATA #REQUIRED>
]>
<context name="local">
	<device id="iio:device0" name="ad7091r" >
		<attribute name="in_voltage_scale" />
	</device>
</context>