'**SUMMARY**
Returns a single property value from the SANE device
equivalent to Scanner.device.PROPERTY
**RETURNS**
Value for option or None if missing/inactive
**EXAMPLES**
>>> scan = Scanner()
>>> print scan.getProperty(\'mode\')
color'

def getProperty(self, prop):

    if hasattr(self.device, prop):
        return getattr(self.device, prop)
    return None
