Class: IntelGalileo::Gpio

Inherits:
Object
  • Object
show all
Defined in:
lib/intel_galileo/gpio.rb

Instance Method Summary collapse

Constructor Details

#initialize(gpio) ⇒ Gpio

Returns a new instance of Gpio.



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# File 'lib/intel_galileo/gpio.rb', line 3

def initialize(gpio)
  @gpio = gpio
  @drive = nil
  @direction = nil
  self.enable()
end

Instance Method Details

#disable ⇒ Object 



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# File 'lib/intel_galileo/gpio.rb', line 43

def disable
  unexport unless ! exported?
end

#enable ⇒ Object 



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# File 'lib/intel_galileo/gpio.rb', line 10

def enable
  export unless exported?
end

#ensureDirection(direction) ⇒ Object 



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# File 'lib/intel_galileo/gpio.rb', line 31

def ensureDirection(direction)
  if @direction != direction
    setDirection(direction)
  end
end

#ensureDrive(drive) ⇒ Object 



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# File 'lib/intel_galileo/gpio.rb', line 37

def ensureDrive(drive)
  if @drive != drive
    setDrive(drive)
  end
end

#read ⇒ Object 



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# File 'lib/intel_galileo/gpio.rb', line 14

def read
  ensureDirection('in')
  f = File.open("/sys/class/gpio/gpio#{@gpio}/value", 'r')
  value = f.read
  f.close
  puts "Reading"
  return value
end

#write(value) ⇒ Object 



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# File 'lib/intel_galileo/gpio.rb', line 23

def write(value)
  ensureDirection('out')
  f = File.open("/sys/class/gpio/gpio#{@gpio}/value", 'w')
  f.write(value)
  f.close
  puts "Writing #{value}"
end