Descobrindo quais são seus dispositivos de entrada
Publicado por Fábio Berbert de Paula em 17/05/2020
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Blog: https://fabio.automatizando.dev
I: Bus=0019 Vendor=0000 Product=0001 Version=0000 N: Name="Power Button" P: Phys=PNP0C0C/button/input0 S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input0 U: Uniq= H: Handlers=kbd event0 B: PROP=0 B: EV=3 B: KEY=10000000000000 0 I: Bus=0019 Vendor=0000 Product=0001 Version=0000 N: Name="Power Button" P: Phys=LNXPWRBN/button/input0 S: Sysfs=/devices/LNXSYSTM:00/LNXPWRBN:00/input/input1 U: Uniq= H: Handlers=kbd event1 B: PROP=0 B: EV=3 B: KEY=10000000000000 0 I: Bus=0019 Vendor=0000 Product=0006 Version=0000 N: Name="Video Bus" P: Phys=LNXVIDEO/video/input0 S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input2 U: Uniq= H: Handlers=kbd event2 B: PROP=0 B: EV=3 B: KEY=3e000b00000000 0 0 0 I: Bus=0003 Vendor=258a Product=0001 Version=0110 N: Name="SINO WEALTH USB KEYBOARD" P: Phys=usb-0000:00:1a.0-1.3/input0 S: Sysfs=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3:1.0/0003:258A:0001.0001/input/input3 U: Uniq= H: Handlers=sysrq kbd leds event3 B: PROP=0 B: EV=120013 B: KEY=1000000000007 ff9f207ac14057ff febeffdfffefffff fffffffffffffffe B: MSC=10 B: LED=7 I: Bus=0003 Vendor=258a Product=0001 Version=0110 N: Name="SINO WEALTH USB KEYBOARD System Control" P: Phys=usb-0000:00:1a.0-1.3/input1 S: Sysfs=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3:1.1/0003:258A:0001.0002/input/input4 U: Uniq= H: Handlers=kbd event4 B: PROP=0 B: EV=13 B: KEY=c000 10000000000000 0 B: MSC=10 I: Bus=0003 Vendor=258a Product=0001 Version=0110 N: Name="SINO WEALTH USB KEYBOARD Consumer Control" P: Phys=usb-0000:00:1a.0-1.3/input1 S: Sysfs=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3:1.1/0003:258A:0001.0002/input/input5 U: Uniq= H: Handlers=kbd event5 B: PROP=0 B: EV=13 B: KEY=2a000000000 0 0 1000002000000 3878d8011001 e000000000000 0 B: MSC=10 I: Bus=0003 Vendor=046d Product=c408 Version=0110 N: Name="Logitech USB Trackball" P: Phys=usb-0000:00:1a.0-1.4/input0 S: Sysfs=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/1-1.4:1.0/0003:046D:C408.0003/input/input6 U: Uniq= H: Handlers=mouse0 event6 B: PROP=0 B: EV=17 B: KEY=1f0000 0 0 0 0 B: REL=3 B: MSC=10 I: Bus=0010 Vendor=001f Product=0001 Version=0100 N: Name="PC Speaker" P: Phys=isa0061/input0 S: Sysfs=/devices/platform/pcspkr/input/input7 U: Uniq= H: Handlers=kbd event7 B: PROP=0 B: EV=40001 B: SND=6 I: Bus=0000 Vendor=0000 Product=0000 Version=0000 N: Name="HDA Intel PCH Rear Mic" P: Phys=ALSA S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card0/input8 U: Uniq= H: Handlers=event8 B: PROP=0 B: EV=21 B: SW=10 I: Bus=0000 Vendor=0000 Product=0000 Version=0000 N: Name="HDA Intel PCH Line" P: Phys=ALSA S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card0/input9 U: Uniq= H: Handlers=event9 B: PROP=0 B: EV=21 B: SW=2000 I: Bus=0000 Vendor=0000 Product=0000 Version=0000 N: Name="HDA Intel PCH Headphone" P: Phys=ALSA S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card0/input10 U: Uniq= H: Handlers=event10 B: PROP=0 B: EV=21 B: SW=4 I: Bus=0000 Vendor=0000 Product=0000 Version=0000 N: Name="HDA Intel PCH HDMI/DP,pcm=3" P: Phys=ALSA S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card0/input11 U: Uniq= H: Handlers=event11 B: PROP=0 B: EV=21 B: SW=140 I: Bus=0000 Vendor=0000 Product=0000 Version=0000 N: Name="HDA Intel PCH HDMI/DP,pcm=7" P: Phys=ALSA S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card0/input12 U: Uniq= H: Handlers=event12 B: PROP=0 B: EV=21 B: SW=140 I: Bus=0000 Vendor=0000 Product=0000 Version=0000 N: Name="HDA Intel PCH HDMI/DP,pcm=8" P: Phys=ALSA S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card0/input13 U: Uniq= H: Handlers=event13 B: PROP=0 B: EV=21 B: SW=140 I: Bus=0003 Vendor=046d Product=0825 Version=0012 N: Name="UVC Camera (046d:0825)" P: Phys=usb-0000:00:14.0-2/button S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb2/2-2/2-2:1.0/input/input14 U: Uniq= H: Handlers=kbd event14 B: PROP=0 B: EV=3 B: KEY=100000 0 0 0Muita informação na tela não é verdade? O que nos importa na saída são as linhas "Name" e "Handlers", então vamos usar a combinação do comando grep para filtrá-las e o paste para colocá-las na mesma linha:
N: Name="Power Button" H: Handlers=kbd event0 N: Name="Power Button" H: Handlers=kbd event1 N: Name="Video Bus" H: Handlers=kbd event2 N: Name="SINO WEALTH USB KEYBOARD" H: Handlers=sysrq kbd leds event3 N: Name="SINO WEALTH USB KEYBOARD System Control" H: Handlers=kbd event4 N: Name="SINO WEALTH USB KEYBOARD Consumer Control" H: Handlers=kbd event5 N: Name="Logitech USB Trackball" H: Handlers=mouse0 event6 N: Name="PC Speaker" H: Handlers=kbd event7 N: Name="HDA Intel PCH Rear Mic" H: Handlers=event8 N: Name="HDA Intel PCH Line" H: Handlers=event9 N: Name="HDA Intel PCH Headphone" H: Handlers=event10 N: Name="HDA Intel PCH HDMI/DP,pcm=3" H: Handlers=event11 N: Name="HDA Intel PCH HDMI/DP,pcm=7" H: Handlers=event12 N: Name="HDA Intel PCH HDMI/DP,pcm=8" H: Handlers=event13 N: Name="UVC Camera (046d:0825)" H: Handlers=kbd event14Agora sim ficou fácil identificar os dispositivos de entrada! No meu caso o "Rear Mic" (microfone traseiro) está no "event8", ou seja, /dev/input/event8.
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