class BeagleBoard::Linux::Gpio
Public Class Methods
new(bank, gpio)
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Calls superclass method
BeagleBoard::Base::Gpio::new
# File lib/beagleboard/linux/gpio.rb, line 6 def initialize(bank, gpio) @gpio_number = bank * 32 + gpio @gpio_directory = "/sys/class/gpio/gpio#{@gpio_number}" super end
Public Instance Methods
close()
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# File lib/beagleboard/linux/gpio.rb, line 16 def close File.write('/sys/class/gpio/unexport', @gpio_number.to_s) end
direction()
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# File lib/beagleboard/linux/gpio.rb, line 20 def direction File.read("#{@gpio_directory}/direction").to_sym end
direction=(value)
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# File lib/beagleboard/linux/gpio.rb, line 24 def direction=(value) raise StandardError, 'Invalid direction' unless %i[in out low high].include?(value) File.write("#{@gpio_directory}/direction", value.to_s) end
open()
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# File lib/beagleboard/linux/gpio.rb, line 12 def open File.write('/sys/class/gpio/export', @gpio_number.to_s) end
value()
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# File lib/beagleboard/linux/gpio.rb, line 30 def value File.read("#{@gpio_directory}/value").to_i end
value=(value)
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# File lib/beagleboard/linux/gpio.rb, line 34 def value=(value) File.write("#{@gpio_directory}/value", value.to_s) end