Class: ExtremeFeedbackDevice::SPI

Inherits:
Object
  • Object
show all
Defined in:
lib/extreme_feedback_device/spi.rb

Constant Summary collapse

DEFAULT_DEVICE = 
'/dev/spidev0.0'

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(device = nil) ⇒ SPI

Returns a new instance of SPI.



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# File 'lib/extreme_feedback_device/spi.rb', line 7

def initialize(device=nil)
  @device = device || DEFAULT_DEVICE
end

Instance Attribute Details

#device ⇒ Object (readonly)

Returns the value of attribute device.



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# File 'lib/extreme_feedback_device/spi.rb', line 5

def device
  @device
end

Instance Method Details

#write(data) ⇒ Object 



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# File 'lib/extreme_feedback_device/spi.rb', line 11

def write(data)
  ::File.open(device, 'wb') do |spi|
    spi.write(data)
    spi.flush
  end
end

#write_colors(colors) ⇒ Object 



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# File 'lib/extreme_feedback_device/spi.rb', line 18

def write_colors(colors)
  write(colors_to_data(colors))
end