from abstract_instrument import abstract_instrument
import os

#==============================================================================

ALL_VAL_TYPE = ['PWR']
ALL_CHANNELS = ['1']

ADDRESS = "/dev/usbtmc0"
CONF_VAL_TYPE = ['PWR']

#==============================================================================

class PM100D(abstract_instrument):
	def __init__(self, channels, vtypes, address):
		self.address = address
		self.channels = channels
		self.vtypes = vtypes

	def model(self):
		#self.send("*IDN?")
		#return self.read()
		return "PM100D"

	def connect(self):
		print('Connecting to device @%s...' %(self.address))
		self.FILE = os.open(self.address, os.O_RDWR)
		print('  --> Ok')
		print(self.model())
		self.configure()

	def configure(self):
		pass

	def getValue(self):
		self.send("READ?")
		return self.read()

	def read(self):
		return os.read(self.FILE, 300)

	def disconnect(self):
		self.send('*RST')

	def send(self, command):
		os.write(self.FILE, command)