当我按下竹子墨水笔的顶部按钮时，我怎么能运行命令呢？

Question

我一直在尝试运行一个命令，当我按下我的竹子墨水笔的顶部键。我意识到它通过蓝牙连接，当我按下按钮并停止连接时，当我释放它。

我被连接蓝牙设备时运行脚本绊倒了，当我跑

udevadm monitor --environment --udev --kernel --property

然后按一次按钮，得到以下输出：

KERNEL[5118.647193] add      /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:3585 (bluetooth)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:3585
SUBSYSTEM=bluetooth
DEVTYPE=link
SEQNUM=4094

UDEV  [5118.657098] add      /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:3585 (bluetooth)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:3585
SUBSYSTEM=bluetooth
DEVTYPE=link
SEQNUM=4094
USEC_INITIALIZED=5118654305
SYSTEMD_ALIAS=/sys/subsystem/bluetooth/devices/hci0:3585
SYSTEMD_WANTS=bluetooth.target
SYSTEMD_USER_WANTS=bluetooth.target
TAGS=:systemd:

KERNEL[5119.311809] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:3585 (bluetooth)
ACTION=remove
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:3585
SUBSYSTEM=bluetooth
DEVTYPE=link
SEQNUM=4095

UDEV  [5119.317304] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:3585 (bluetooth)
ACTION=remove
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:3585
SUBSYSTEM=bluetooth
DEVTYPE=link
SEQNUM=4095
USEC_INITIALIZED=5118654305
SYSTEMD_ALIAS=/sys/subsystem/bluetooth/devices/hci0:3585
SYSTEMD_WANTS=bluetooth.target
SYSTEMD_USER_WANTS=bluetooth.target
TAGS=:systemd:

不幸的是，没有idVendor或idProduct。

当我跑的时候

sudo tail -f /var/log/syslog

但是，它会抱怨该文件不存在。

到目前为止，我的udev rules看起来是这样的。

# Run a program when my Bamboo Ink is connected
ACTION=="add" , SUBSYSTEM=="bluetooth", ATTR{idVendor}=="xxx", ATTR{idProduct}=="yyy", ATTRS{model}=="Bamboo Ink", RUN+="xournalpp"

猜测模型是“竹墨”，因为我在journalctl -b中找到了这一行

Feb 26 14:57:35 X380-Yoga kernel: wacom 0005:056A:035F.000C: Unknown device_type for 'Bamboo Ink'. Ignoring.

所以我需要找到idVendor，idProduct和模型。还有别的办法吗？

Answer 1

我就是这样做的：

ACTION=="add" , SUBSYSTEM=="bluetooth", DEVPATH=="/devices/pci0000:00/0000:00:14.0/usb1/1-10/1-10:1.0/bluetooth/hci0/hci0:3585", RUN+="/home/gvb/bin/run-pen-state.sh"

我想做的是在钢笔和橡皮擦之间切换，在Xournal中切换。所需的两个脚本如下所示。他们需要两个小的工具: wmctrl和xdotool..。

"run-pen-state.sh“的内容是

#!/bin/csh
sudo -u gvb -i /home/gvb/bin/pen-state

而“笔式”本身

#!/usr/bin/perl -w

$home=$ENV{'HOME'};
$store=`grep "#state: " ~/bin/pen-state | grep -v store`;
chomp($store);

$command=`export DISPLAY=:0; export XAUTHORITY=$home/.Xauthority; wmctrl -l`;
foreach $line (split(/\n/,$command)){
  if (($line=~ /Xournal/)&&($line=~ /$filename/)){
    $winid=(split(/ /,$line))[0];
  }
}


if($winid){
  system("export DISPLAY=:0; export XAUTHORITY=$home/.Xauthority; wmctrl -i -a $winid");


  if($store =~ /pen/){
    $now="state: eraser";
    system("export DISPLAY=:0; export XAUTHORITY=$home/.Xauthority; xdotool key shift+ctrl+e");
  }else{
    $now="state: pen";
    system("export DISPLAY=:0; export XAUTHORITY=$home/.Xauthority; xdotool key shift+ctrl+p");
  }

  $now="#$now";

  print "$store\n";
  print "$now\n";

  open(SELF,"$home/bin/pen-state");
  read(SELF,$self,-s "$home/bin/pen-state",0);
  close(SELF);
  $self=~ s/$store/$now/;
  open(SELF,">$home/bin/pen-state");
  print SELF $self;
  close(SELF);
}

#state: pen