Class: Vigilem::Evdev::Device

.all ⇒ Array<Device>
.chardev_glob(glob = './*') ⇒ Array<String>

Expands pattern, which is an Array of patterns or a pattern String, and returns the results as matches or as arguments given to the block.
.name_grep(name_regexp, filename_glob = nil) ⇒ Array<Device>

executes EVIOCGNAME against known chardev’s, and compares that to the regexp.
.new(fd, mode = 'r', opt = {}) ⇒ Object

implement with udev.
.open(filename, mode = 'r', opt = {}) ⇒ Object

open(filename, mode=“r” [, opt]) open(filename [, mode [, perm]] [, opt]) {|file| block } → obj /lib/udev/findkeyboards; method_missing -> get_keyboards?.
.super_open ⇒ Object

Instance Method Summary collapse

#_bits ⇒ Object
#ids ⇒ Array<Fixnum, Fixnum, Fixnum, Fixnum>

gets the ids of this device in an array.
#led_bits ⇒ Object
#name ⇒ String

name of this device.
#read(length = nil, outbuf = nil) ⇒ Array?
#read_nonblock(maxlen, out_buf = nil) ⇒ Array?

Methods included from System::Input

kernel_version

Methods included from System::IOCTL

#IOCSIZE_MASK, #IOCSIZE_SHIFT, #IOC_IN, #IOC_INOUT, #IOC_OUT, #_IO, #_IOC, #_IOC_DIR, #_IOC_DIRBITS, #_IOC_DIRMASK, #_IOC_DIRSHIFT, #_IOC_NONE, #_IOC_NR, #_IOC_NRBITS, #_IOC_NRMASK, #_IOC_NRSHIFT, #_IOC_READ, #_IOC_SIZE, #_IOC_SIZEBITS, #_IOC_SIZEMASK, #_IOC_SIZESHIFT, #_IOC_TYPE, #_IOC_TYPEBITS, #_IOC_TYPEMASK, #_IOC_TYPESHIFT, #_IOC_WRITE, #_IOR, #_IOW, #_IOWR, #_size_of, kernel_versions

Methods included from System::Input::Macros

#EVIOCGABS, #EVIOCGBIT, #EVIOCGEFFECTS, #EVIOCGID, #EVIOCGKEY, #EVIOCGKEYCODE, #EVIOCGKEYCODE_V2, #EVIOCGLED, #EVIOCGMTSLOTS, #EVIOCGNAME, #EVIOCGPHYS, #EVIOCGPROP, #EVIOCGRAB, #EVIOCGREP, #EVIOCGSND, #EVIOCGSW, #EVIOCGUNIQ, #EVIOCGVERSION, #EVIOCREVOKE, #EVIOCRMFF, #EVIOCSABS, #EVIOCSCLOCKID, #EVIOCSFF, #EVIOCSKEYCODE, #EVIOCSKEYCODE_V2, #EVIOCSREP, #_s16, #_u16, #_u32, #_u8, #ff_effect, #input_keymap_entry, #int, #struct_input_id, #unsigned_int_2

Methods included from DeviceCapabilities

#absolute_axes?, #forcefeedback?, #forcefeedback_status?, #keys?, #leds?, #misc?, #power?, #relative_axes?, #repeat?, #sound?, #switches?

Class Attribute Details

.default_dir ⇒ `String`

defaults to “/dev/input”

Returns:

(String)



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# File 'lib/vigilem/evdev/device.rb', line 60

def default_dir
  @default_dir ||= '/dev/input'
end

.default_glob ⇒ `String`

defaults to “/dev/input/event*”

Returns:

(String)



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# File 'lib/vigilem/evdev/device.rb', line 66

def default_glob
  @default_glob ||= File.join(default_dir, 'event*')
end

Class Method Details

.all ⇒ `Array<Device>`

Returns:

(Array<Device>)



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# File 'lib/vigilem/evdev/device.rb', line 54

def all
  @all ||= chardev_glob(default_glob).map {|fp| send(:super_open, fp) }
end

.chardev_glob(glob = './*') ⇒ `Array<String>`

Expands pattern, which is an Array of patterns or a pattern String, and returns the results as matches or as arguments given to the block. and returns only character devices

Parameters:

glob (String) (defaults to: './*') —

defaults to ‘./*’

Returns:

(Array<String>)

.name_grep(name_regexp, filename_glob = nil) ⇒ `Array<Device>`

executes EVIOCGNAME against known chardev’s, and compares that to the regexp. If there is a filename_glob it checks that first.

Parameters:

name_regexp (Regexp)
glob (NilClass || String)

Returns:

(Array<Device>)

# File 'lib/vigilem/evdev/device.rb', line 82

def name_grep(name_regexp, filename_glob=nil)
  if filename_glob
    file_paths = chardev_glob(filename_glob).map {|fn| File.expand_path(fn) }
    file_paths.map {|f_path| dev if (dev = send(:super_open, f_path)).name =~ name_regexp }.compact.uniq
  else
    all.select {|dev| dev.name =~ name_regexp }
  end
end

.new(fd, mode = 'r', opt = {}) ⇒ `Object`

implement with udev

Parameters:

fd
mode (String) (defaults to: 'r')
opt (Hash) (defaults to: {})

Returns:

Raises:

(NotImplemented)



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# File 'lib/vigilem/evdev/device.rb', line 34

def new(fd, mode='r', opt={})
  raise NotImplemented, 'Cannot create device yet'
end

.open(filename, mode = 'r', opt = {}) ⇒ `Object`

TODO:

mode, opt

open(filename, mode=“r” [, opt]) open(filename [, mode [, perm]] [, opt]) {|file| block } → obj /lib/udev/findkeyboards; method_missing -> get_keyboards?

.super_open ⇒ `Object`

23	# File 'lib/vigilem/evdev/device.rb', line 23 alias_method :super_open, :open

Instance Method Details

#_bits ⇒ `Object`

# File 'lib/vigilem/evdev/device.rb', line 136

def _bits
  unless @bits
    ioctl(EVIOCGBIT(0), bits = [0].pack('i'))
    @bits = bits.unpack('i')[0]
  end
  return @bits
end

#ids ⇒ `Array<Fixnum, Fixnum, Fixnum, Fixnum>`

gets the ids of this device in an array

Returns:

(Array<Fixnum, Fixnum, Fixnum, Fixnum>) —
idbus, idvendor, idproduct, idversion

# File 'lib/vigilem/evdev/device.rb', line 114

def ids
  @ids ||= begin
            ioctl(EVIOCGID, buf = '\x00' * 8)
            buf.unpack('S!4')
          end
end

#led_bits ⇒ `Object`

# File 'lib/vigilem/evdev/device.rb', line 123

def led_bits
  
  no_of_bytes = bit_count_to_byte_count(LED_CNT - 1)
  
  ledbit = "\x00" * no_of_bytes
  
  ioctl(EVIOCGLED(System.sizeof("C#{no_of_bytes}")), ledbit)
  
  ledbit[0..no_of_bytes].unpack("b*").first
end

#name ⇒ `String`

name of this device

Returns:

(String)

# File 'lib/vigilem/evdev/device.rb', line 104

def name
  @name ||= begin 
             ioctl(EVIOCGNAME(len = 256), out_name = " " * len)
             out_name.rstrip
           end
end

#read(length = nil, outbuf = nil) ⇒ `Array?`

Parameters:

length (Fixnum) (defaults to: nil)
out_buf=nill

Returns:

(Array?)

Raises:

(Evdev::SizeError)

# File 'lib/vigilem/evdev/device.rb', line 167

def read(length=nil, outbuf=nil)
  length ||= Event.size
  raise Evdev::SizeError, arg_name: 'length', arg_size: length, max_size: sze if length < (sze = InputEvent.size)
  super(*[length, outbuf])
end

#read_nonblock(maxlen, out_buf = nil) ⇒ `Array?`

Parameters:

max_len
out_buf=nil

Returns:

(Array?)

Raises:

(Evdev::SizeError)

# File 'lib/vigilem/evdev/device.rb', line 158

def read_nonblock(maxlen, out_buf=nil)
  raise Evdev::SizeError, 'maxlen', maxlen, ie_size if maxlen < (ie_size = InputEvent.size)
  super(*[maxlen, out_buf])
end

Class: Vigilem::Evdev::Device

Constant Summary collapse

Constants included from System::Input::ForceFeedBack

Constants included from System::Input::MTTOOLTypes

Constants included from System::Input::IDs

Constants included from System::Input::Sounds

Constants included from System::Input::AutorepeatValues

Constants included from System::Input::LEDs

Constants included from System::Input::MiscEvents

Constants included from System::Input::SwitchEvents

Constants included from System::Input::AbsoluteAxes

Constants included from System::Input::RelativeAxes

Constants included from System::Input::KeysAndButtons

Constants included from System::Input::SynchronizationEvents

Constants included from System::Input::EventTypes

Constants included from System::Input::DeviceProperties

Class Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from System::Input

Methods included from System::IOCTL

Methods included from System::Input::Macros

Methods included from DeviceCapabilities

Class Attribute Details

.default_dir ⇒ String

.default_glob ⇒ String

Class Method Details

.all ⇒ Array<Device>

.chardev_glob(glob = './*') ⇒ Array<String>

.name_grep(name_regexp, filename_glob = nil) ⇒ Array<Device>

.new(fd, mode = 'r', opt = {}) ⇒ Object

.open(filename, mode = 'r', opt = {}) ⇒ Object

.super_open ⇒ Object

Instance Method Details

#_bits ⇒ Object

#ids ⇒ Array<Fixnum, Fixnum, Fixnum, Fixnum>

#led_bits ⇒ Object

#name ⇒ String

#read(length = nil, outbuf = nil) ⇒ Array?

#read_nonblock(maxlen, out_buf = nil) ⇒ Array?

.default_dir ⇒ `String`

.default_glob ⇒ `String`

.all ⇒ `Array<Device>`

.chardev_glob(glob = './*') ⇒ `Array<String>`

.name_grep(name_regexp, filename_glob = nil) ⇒ `Array<Device>`

.new(fd, mode = 'r', opt = {}) ⇒ `Object`

.open(filename, mode = 'r', opt = {}) ⇒ `Object`

.super_open ⇒ `Object`

#_bits ⇒ `Object`

#ids ⇒ `Array<Fixnum, Fixnum, Fixnum, Fixnum>`

#led_bits ⇒ `Object`

#name ⇒ `String`

#read(length = nil, outbuf = nil) ⇒ `Array?`

#read_nonblock(maxlen, out_buf = nil) ⇒ `Array?`