我在我的设备中使用evtest来查看在我的硬键遥控器中按下的一个按钮的键值。
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^[[15~Event: time 1447340367.872317, type 4 (EV_MSC), code 4 (MSC_SCAN)
Event: time 1447340367.872329, type 1 (EV_KEY), code 63 (KEY_F5), value 1
Event: time 1447340367.872330, -------------- SYN_REPORT ------------
Event: time 1447340367.913953, type 4 (EV_MSC), code 4 (MSC_SCAN)
Event: time 1447340367.913966, type 1 (EV_KEY), code 63 (KEY_F5), value 0
Event: time 1447340367.913967, -------------- SYN_REPORT ------------
^[[AEvent: time 1447340404.421715, type 4 (EV_MSC), code 4 (MSC_SCAN)
Event: time 1447340404.421734, type 1 (EV_KEY), code 103 (KEY_UP), value 1
Event: time 1447340404.421735, -------------- SYN_REPORT ------------
Event: time 1447340404.444706, type 4 (EV_MSC), code 4 (MSC_SCAN)
Event: time 1447340404.444710, type 1 (EV_KEY), code 103 (KEY_UP), value 0
在我的供应商处，同样的输出是
&&&&&&&&&&&
^[[15~Event: time 1447340367.872317, type 4 (EV_MSC), code 4 (MSC_SCAN), value 7003e
Event: time 1447340367.872329, type 1 (EV_KEY), code 63 (KEY_F5), value 1
Event: time 1447340367.872330, -------------- SYN_REPORT ------------
Event: time 1447340367.913953, type 4 (EV_MSC), code 4 (MSC_SCAN), value 7003e
Event: time 1447340367.913966, type 1 (EV_KEY), code 63 (KEY_F5), value 0
Event: time 1447340367.913967, -------------- SYN_REPORT ------------
^[[AEvent: time 1447340404.421715, type 4 (EV_MSC), code 4 (MSC_SCAN), value 70052
Event: time 1447340404.421734, type 1 (EV_KEY), code 103 (KEY_UP), value 1
Event: time 1447340404.421735, -------------- SYN_REPORT ------------
Event: time 1447340404.444706, type 4 (EV_MSC), code 4 (MSC_SCAN), value 70052
Event: time 1447340404.444710, type 1 (EV_KEY), code 103 (KEY_UP), value 0
&&&&&&&&&&&
^[[15~Event: time 1447340367.872317, type 4 (EV_MSC), code 4 (MSC_SCAN), **value 7003e**
扫描值不在我的linux设备上，你知道怎么得到它吗？
最佳答案
您可能需要更新系统上evtest的版本。快速浏览evtest的代码可以发现，版本1.27及更高版本总是打印该值；早期版本可能不会这样做。
关于linux - evtest没有给出扫描值，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/33731785/