'**SUMMARY**
Assigns a property value from the SANE device
equivalent to Scanner.device.PROPERTY = VALUE
**RETURNS**
None
**EXAMPLES**
>>> scan = Scanner()
>>> print scan.getProperty(\'mode\')
color
>>> scan.setProperty("mode") = "gray"'

def setProperty(self, prop, val):

    setattr(self.device, prop, val)
