第 16 章 硬件配置

过程 16.1. 如何添加平板电脑描述

1. 使用 libwacom-list-local-devices 工具列出 libwacom 识别的所有本地设备。
   如果您的设备没有被列出，但可作为内核中的事件设备（请参阅 /proc/bus/input/devices）和 X 会话（请参阅 xinput list），则 libwacom 的数据库中缺少该设备。
2. 创建一个新的平板电脑定义文件。使用以下的 data/wacom.example ，并编辑相应的行。
   注意
   新的 .tablet 文件可能已经提供，因此先在 https://sourceforge.net/p/linuxwacom/libwacom/ci/master/tree/ 检查上游存储库。如果在列表中找到了您的平板电脑型号，只需将该文件复制到本地机器就可。

   # Example model file description for a tablet
   [Device]
   
   # The product is the product name announced by the kernel
   Product=Intuos 4 WL 6x9
   
   # Vendor name of this tablet
   Vendor=Wacom
   
   # DeviceMatch includes the bus (usb, serial), the vendor ID and the actual
   # product ID 
   DeviceMatch=usb:056a:00bc
   
   # Class of the tablet. Valid classes include Intuos3, Intuos4, Graphire, Bamboo, Cintiq
   Class=Intuos4
   
   # Exact model of the tablet, not including the size.
   Model=Intuos 4 Wireless
   
   # Width in inches, as advertised by the manufacturer
   Width=9
   
   # Height in inches, as advertised by the manufacturer
   Height=6
   
   # Optional features that this tablet supports
   # Some features are dependent on the actual tool used, e.g. not all styli
   # have an eraser and some styli have additional custom axes (e.g. the
   # airbrush pen). These features describe those available on the tablet.
   #
   # Features not set in a file default to false/0
   
   [Features]
   # This tablet supports styli (and erasers, if present on the actual stylus)
   Stylus=true
   
   # This tablet supports touch.
   Touch=false
   
   # This tablet has a touch ring (Intuos4 and Cintiq 24HD)
   Ring=true
   # This tablet has a second touch ring (Cintiq 24HD)
   Ring2=false
   
   # This tablet has a vertical/horizontal scroll strip
   VStrip=false
   HStrip=false
   
   # Number of buttons on the tablet
   Buttons=9
   
   # This tablet is built-in (most serial tablets, Cintiqs) 
   BuiltIn=false

3. 添加和安装以 .tablet 为后缀的新文件：

   cp the-new-file.tablet /usr/share/libwacom/

   安装后，平板电脑是 libwacom 的数据库的一部分。然后，可通过 libwacom-list-local-devices 提供平板电脑。
4. 创建包含以下内容的新文件 /etc/udev/rules/99-libwacom-override.rules，以便您的设置不会被覆盖：

   ACTION!="add|change", GOTO="libwacom_end"
   KERNEL!="event[0-9]*", GOTO="libwacom_end"
   
   [new tablet match entries go here]
   
   LABEL="libwacom_end"
   

5. 重启您的系统。