我有一个基本的带有两个按钮的脚踏板，我想设置它来模仿Control和Super。
xmodmap我以前用过xev，按照建议在此答案中。
但事实证明，脚踏板的按钮目前已映射到a和c，系统无法区分踏板和键盘的输入。因此，当我重新映射a到时Control，它也会重新映射我的键盘。（我在连接了外接键盘的笔记本电脑上工作）
下面您可以找到xev外部键盘和脚踏板的输出。有任何想法吗？ ：）
键盘A
KeyPress event, serial 37, synthetic NO, window 0x5400001, root 0xd8, subw 0x0, time 2976167, (-463,316), root:(561,368), state 0x10, keycode 38 (keysym 0x61, a), same_screen YES, XLookupString gives 1 bytes: (61) "a" XmbLookupString gives 1 bytes: (61) "a" XFilterEvent returns: False KeyRelease event, serial 37, synthetic NO, window 0x5400001, root 0xd8, subw 0x0, time 2976232, (-463,316), root:(561,368), state 0x10, keycode 38 (keysym 0x61, a), same_screen YES, XLookupString gives 1 bytes: (61) "a" XFilterEvent returns: False
脚踏板A
KeyPress event, serial 37, synthetic NO, window 0x5400001, root 0xd8, subw 0x0, time 3114112, (-172,78), root:(852,130), state 0x10, keycode 38 (keysym 0x61, a), same_screen YES, XLookupString gives 1 bytes: (61) "a" XmbLookupString gives 1 bytes: (61) "a" XFilterEvent returns: False KeyRelease event, serial 37, synthetic NO, window 0x5400001, root 0xd8, subw 0x0, time 3114408, (-172,78), root:(852,130), state 0x10, keycode 38 (keysym 0x61, a), same_screen YES, XLookupString gives 1 bytes: (61) "a" XFilterEvent returns: False