Class: DreamCheeky::Notifier

Inherits:
Object
  • Object
show all
Defined in:
lib/dreamcheeky/notifier.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(device) ⇒ Notifier

Returns a new instance of Notifier.



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# File 'lib/dreamcheeky/notifier.rb', line 10

def initialize(device)
  @device = device
  reset_device
end

Class Method Details

.all ⇒ Object 



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# File 'lib/dreamcheeky/notifier.rb', line 6

def self.all
  @@devices ||= LIBUSB::Context.new.devices(idVendor: 0x1d34, idProduct: 4).sort.map {|device| new (device)}
end

Instance Method Details

#colour!(colour) ⇒ Object Also known as: colour 



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# File 'lib/dreamcheeky/notifier.rb', line 15

def colour!(colour)
  send("%c%c%c\x00\x00\x00\x00\x05" % [colour.r, colour.g, colour.b].map {|x| x*64 })
end

#reset_device ⇒ Object

Special codes that apparently need to be sent to initialise the device. The first three values of the last line also represent the RGB colours on initialisation



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# File 'lib/dreamcheeky/notifier.rb', line 35

def reset_device
  send "\x1f\x02\x00\x2e\x00\x00\x2b\x03"
  send "\x00\x02\x00\x2e\x00\x00\x2b\x04"
  send "\x00\x00\x00\x2e\x00\x00\x2b\x05"
end

#send(data) ⇒ Object 



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# File 'lib/dreamcheeky/notifier.rb', line 25

def send(data)
  @device.open do |handle|
    request_type = LIBUSB::REQUEST_TYPE_CLASS | LIBUSB::RECIPIENT_INTERFACE  # flags to send data to device
    # other special flags that I don't know what they do
    handle.control_transfer(:bmRequestType => request_type, :bRequest => 0x09, :wValue => 0x200, :wIndex => 0x00, :dataOut => data)
  end
end

#turn_off ⇒ Object 



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# File 'lib/dreamcheeky/notifier.rb', line 21

def turn_off
  colour!(Colour.new(0, 0, 0))
end