Início / unix / Perguntas / 542299
Accepted
GlinesMome
Asked: 2019-09-18 09:43:20 +0800 CST

Alterar o código da chave para um determinado dispositivo

  • 772

Acabei de adquirir um Logitech Spotlight Presenter, ele possui dois botões que possuem códigos de teclas incompatíveis com minha apresentação (revealjs). Nexte Previoussão vinculados como Righte Left, enquanto eu quero alterá-los para ne p. Estou usando o Ubuntu 18.04 e o ArchLinux.

O parâmetro do dispositivo:

$ lsusb -d 046d:c53e -v

Bus 001 Device 012: ID 046d:c53e Logitech, Inc.
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0        32
  idVendor           0x046d Logitech, Inc.
  idProduct          0xc53e
  bcdDevice           41.00
  iManufacturer           1
  iProduct                2
  iSerial                 0
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           84
    bNumInterfaces          3
    bConfigurationValue     1
    iConfiguration          4
    bmAttributes         0xa0
      (Bus Powered)
      Remote Wakeup
    MaxPower               98mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         3 Human Interface Device
      bInterfaceSubClass      1 Boot Interface Subclass
      bInterfaceProtocol      1 Keyboard
      iInterface              0
        HID Device Descriptor:
          bLength                 9
          bDescriptorType        33
          bcdHID               1.11
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength      59
         Report Descriptors:
           ** UNAVAILABLE **
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval               8
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         3 Human Interface Device
      bInterfaceSubClass      1 Boot Interface Subclass
      bInterfaceProtocol      2 Mouse
      iInterface              0
        HID Device Descriptor:
          bLength                 9
          bDescriptorType        33
          bcdHID               1.11
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength     148
         Report Descriptors:
           ** UNAVAILABLE **
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval               2
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         3 Human Interface Device
      bInterfaceSubClass      0 No Subclass
      bInterfaceProtocol      0 None
      iInterface              0
        HID Device Descriptor:
          bLength                 9
          bDescriptorType        33
          bcdHID               1.11
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength      98
         Report Descriptors:
           ** UNAVAILABLE **
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0020  1x 32 bytes
        bInterval               2

Aqui estão as chaves de exibição atuais:

# showkeys --scancodes
0xe0 0x4d 0xe0 0xcd
0xe0 0x4b 0xe0 0xcb

# showkeys --keycodes
keycode 106 release
keycode 105 release

Aqui estão as teclas de exibição de acordo com o meu teclado:

# showkeys --scancodes
0x31 0xb1
p0x19 0x99

# showkeys --keycodes
keycode  49 release
keycode  25 release

Eu deduzi o seguinte /lib/udev/hwdb.d/61-logitech-spotlight-presenter-revealjs.hwdb:

# This file has been created to improve Logitech Spotlight Presenter in revealjs
evdev:input:b*v046dpc53e*
 KEYBOARD_KEY_69=p
 KEYBOARD_KEY_6a=n

então tentei o seguinte

$ sudo systemd-hwdb update
$ udevadm trigger
$ sudo udevadm control --reload-rules && udevadm trigger

Mas meu controle remoto ainda dispara Right/ Left.

systemd

1 respostas

  1. Best Answer

    O software de código aberto Projecteur permite mapear os botões do Logitech Spotlight (e ter um ponto de desktop personalizável)

    Página inicial do projeto: https://github.com/jahnf/Projecteur

    Pacotes para arch também estão disponíveis: https://aur.archlinux.org/packages/projecteur

    Para o Ubuntu, os pacotes estão disponíveis na página do github do projeto, bem como nos repositórios do Ubuntu 20.10 e posteriores.

    Disclaimer: Eu sou o autor de Projecteur

    • 2

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