Class: Uinput::Device

Inherits:
Object
  • Object
show all
Defined in:
lib/uinput/device.rb,
lib/uinput/device/error.rb,
lib/uinput/device/version.rb,
lib/uinput/device/initializer.rb

Defined Under Namespace

Classes: Error, Initializer

Constant Summary collapse

SYS_INPUT_DIR = 
'/sys/devices/virtual/input/'
VERSION = 
"0.4.0"

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(&block) ⇒ Device

Returns a new instance of Device.



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# File 'lib/uinput/device.rb', line 11

def initialize(&block)
  @file = self.class::Initializer.new(self, &block).create

  @sysname = begin
    name_len = 128
    name_buffer = [' ' * name_len].pack("A#{name_len}")
    @file.ioctl(Uinput.UI_GET_SYSNAME(name_len), name_buffer)
    name_buffer.unpack("A#{name_len}").first
  end

  @sys_path = "#{SYS_INPUT_DIR}#{@sysname}"

  @dev_path = begin
    event_dir = Dir["#{@sys_path}/event*"].first
    event = File.basename(event_dir)
    "/dev/input/#{event}"
  end
end

Instance Attribute Details

#dev_path ⇒ Object (readonly)

Returns the value of attribute dev_path.



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# File 'lib/uinput/device.rb', line 30

def dev_path
  @dev_path
end

#file ⇒ Object (readonly)

Returns the value of attribute file.



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# File 'lib/uinput/device.rb', line 30

def file
  @file
end

#sys_path ⇒ Object (readonly)

Returns the value of attribute sys_path.



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# File 'lib/uinput/device.rb', line 30

def sys_path
  @sys_path
end

#sysname ⇒ Object (readonly)

Returns the value of attribute sysname.



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# File 'lib/uinput/device.rb', line 30

def sysname
  @sysname
end

Instance Method Details

#active? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/uinput/device.rb', line 41

def active?
  not @file.nil?
end

#destroy ⇒ Object 



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# File 'lib/uinput/device.rb', line 32

def destroy
  @file.ioctl(UI_DEV_DESTROY, nil)
  @file = nil
end

#name ⇒ Object 



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# File 'lib/uinput/device.rb', line 37

def name
  File.read("#{@sys_path}/name").strip
end

#send_event(type, code, value = 0) ⇒ Object 



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# File 'lib/uinput/device.rb', line 45

def send_event(type, code, value = 0)
  event = LinuxInput::InputEvent.new
  event[:time] = LinuxInput::Timeval.new
  event[:time][:tv_sec] = Time.now.to_i
  event[:type] = type.is_a?(Symbol) ? LinuxInput.const_get(type) : type
  event[:code] = code.is_a?(Symbol) ? LinuxInput.const_get(code) : code
  event[:value] = value
  @file.syswrite(event.pointer.read_bytes(event.size))
end