Class: UVC::ExtensionUnitDescriptor

Inherits:
ClassSpecificVCInterfaceDescriptor show all
Defined in:
lib/uvc.rb

Instance Attribute Summary collapse

Attributes inherited from ClassSpecificVCInterfaceDescriptor

#bDescriptorSubType, #bDescriptorType, #rest

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from ClassSpecificVCInterfaceDescriptor

parse_array

Constructor Details

#initialize(bDescriptorType, bDescriptorSubType, bUnitID, guidExtensionCode, bNumControls, bNrInPins, baSourceID, bControlSize, bmControls, iExtension) ⇒ ExtensionUnitDescriptor

Returns a new instance of ExtensionUnitDescriptor.



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# File 'lib/uvc.rb', line 627

def initialize(bDescriptorType, bDescriptorSubType, bUnitID, guidExtensionCode, bNumControls, bNrInPins, baSourceID, bControlSize, bmControls, iExtension)
	super(bDescriptorType, bDescriptorSubType)
	@bUnitID = bUnitID
	@guidExtensionCode = guidExtensionCode
	@bNumControls = bNumControls
	@bNrInPins = bNrInPins
	@baSourceID = baSourceID
	@bControlSize = bControlSize
	@bmControls = bmControls
	@iExtension = iExtension
end

Instance Attribute Details

#baSourceID ⇒ Object (readonly)

Returns the value of attribute baSourceID.



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# File 'lib/uvc.rb', line 611

def baSourceID
  @baSourceID
end

#bControlSize ⇒ Object (readonly)

Returns the value of attribute bControlSize.



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# File 'lib/uvc.rb', line 612

def bControlSize
  @bControlSize
end

#bmControls ⇒ Object (readonly)

Returns the value of attribute bmControls.



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# File 'lib/uvc.rb', line 613

def bmControls
  @bmControls
end

#bNrInPins ⇒ Object (readonly)

Returns the value of attribute bNrInPins.



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# File 'lib/uvc.rb', line 610

def bNrInPins
  @bNrInPins
end

#bNumControls ⇒ Object (readonly)

Returns the value of attribute bNumControls.



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# File 'lib/uvc.rb', line 609

def bNumControls
  @bNumControls
end

#bUnitID ⇒ Object (readonly)

Returns the value of attribute bUnitID.



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# File 'lib/uvc.rb', line 607

def bUnitID
  @bUnitID
end

#guidExtensionCode ⇒ Object (readonly)

Returns the value of attribute guidExtensionCode.



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# File 'lib/uvc.rb', line 608

def guidExtensionCode
  @guidExtensionCode
end

#iExtension ⇒ Object (readonly)

Returns the value of attribute iExtension.



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# File 'lib/uvc.rb', line 614

def iExtension
  @iExtension
end

Class Method Details

.parse(bDescriptorType, bDescriptorSubType, rest) ⇒ Object 



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# File 'lib/uvc.rb', line 616

def self.parse(bDescriptorType, bDescriptorSubType, rest)
	bUnitID, guidExtensionCode, bNumControls, bNrInPins, rest = *rest.unpack("ca16cca*")
	*baSourceID, rest = *rest.unpack("c#{bNrInPins}a*")
	bControlSize, rest = *rest.unpack("ca*")
	bmControls, iExtension = *rest.unpack("B#{bControlSize*8}c")

	guidExtensionCode = guidExtensionCode.unpack("H8 H4 H4 H4 H12").join("-")

	self.new(bDescriptorType, bDescriptorSubType, bUnitID, guidExtensionCode, bNumControls, bNrInPins, baSourceID, bControlSize, bmControls, iExtension)
end

Instance Method Details

#short_inspect ⇒ Object 



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# File 'lib/uvc.rb', line 639

def short_inspect
	"%s bUnitID=%d\n  %s" % [
		self.class.name.sub(/Descriptor$/, ''),
		self.bUnitID,
		self.guidExtensionCode
	]
end