Class: AmdgpuFan::Connector

Inherits:
Object
  • Object
show all
Defined in:
lib/amdgpu_fan/connector.rb

Overview

Connector

A model class for a GPU connector

Constant Summary collapse

EDID_DESCRIPTORS_CONF = 
{
  display_name_leading_bytes: String.new('\x00\xFC\x00', encoding: 'ascii-8bit'),
  unspecified_text_leading_bytes: String.new('\x00\xFE\x00', encoding: 'ascii-8bit'),
  index_range: (54..125)
}.freeze

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(card_num:, dir_path:, index:, type:) ⇒ Connector

Returns a new instance of Connector.



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# File 'lib/amdgpu_fan/connector.rb', line 30

def initialize(card_num:, dir_path:, index:, type:)
  @card_num = card_num
  @dir_path = dir_path
  @index = index
  @type = type
end

Instance Attribute Details

#card_num ⇒ Object (readonly)

Returns the value of attribute card_num.



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# File 'lib/amdgpu_fan/connector.rb', line 14

def card_num
  @card_num
end

#dir_path ⇒ Object (readonly)

Returns the value of attribute dir_path.



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# File 'lib/amdgpu_fan/connector.rb', line 14

def dir_path
  @dir_path
end

#index ⇒ Object (readonly)

Returns the value of attribute index.



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# File 'lib/amdgpu_fan/connector.rb', line 14

def index
  @index
end

#type ⇒ Object (readonly)

Returns the value of attribute type.



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# File 'lib/amdgpu_fan/connector.rb', line 14

def type
  @type
end

Class Method Details

.where(card_num:) ⇒ Object

Return an array of connector objects for the provided card number. The files are sorted to improve how they are displayed to the user.



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# File 'lib/amdgpu_fan/connector.rb', line 20

def where(card_num:)
  Dir["/sys/class/drm/card#{card_num}/card#{card_num}-*"].sort.map do |dir_path|
    Connector.new card_num: card_num,
                  dir_path: dir_path,
                  index: dir_path[-1],
                  type: dir_path.slice(/(?<=card#{card_num}-)[A-z]+/)
  end
end

Instance Method Details

#connected? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/amdgpu_fan/connector.rb', line 37

def connected?
  status.casecmp('connected').zero?
end

#display_name ⇒ Object 



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# File 'lib/amdgpu_fan/connector.rb', line 41

def display_name
  return if edid.to_s.empty?

  (display_name_text + unspecified_text).join(' ').strip
end

#status ⇒ Object 



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# File 'lib/amdgpu_fan/connector.rb', line 47

def status
  File.read(File.join(dir_path, 'status')).strip
end