减少 bluetoothctl 冗长答案

【问题标题】：Reduce bluetoothctl verbosity减少 bluetoothctl 冗长
【发布时间】：2019-11-22 09:36:08
【问题描述】：

在交互式使用 bluetoothctl 时，它会不断报告来自相邻设备的 RSSI 变化。大多数时候这很烦人，因为在将笔记本电脑连接到蓝牙鼠标时，我并不关心同事 iMac 的 RSSI：

$ bluetoothctl
Agent registered
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -79
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -79
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -82
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -81
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -82
[Bluetooth Mouse]# devices
Device 04:xx:xx:xx:xx:37 iMac de Bernard
Device 48:xx:xx:xx:xx:86 xxxxxxxxxxx
Device 53:xx:xx:xx:xx:26 xxxxxxxxxxx
Device 2C:xx:xx:xx:xx:B6 xxxxxxxxxxx
Device 04:xx:xx:xx:xx:87 xxxxxxxxxxx
Device 6C:xx:xx:xx:xx:88 xxxxxxxxxxx
Device 00:xx:xx:xx:xx:32 Bluetooth Mouse
Device 44:xx:xx:xx:xx:8E xxxxxxxxxxx
Device D4:xx:xx:xx:xx:8E xxxxxxxxxxx
Device 77:xx:xx:xx:xx:77 xxxxxxxxxxx
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -82
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -80
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -79
[CHG] Device 53:xx:xx:xx:xx:26 RSSI: -84
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -79
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -79
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -78
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -80
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -82
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -77
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -84
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -78
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -82
[Bluetooth Mouse]# connect 00:xx:xx:xx:xx:32
Attempting to connect to 00:xx:xx:xx:xx:32
Connection successful
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -81
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -84
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -79
[CHG] Device 53:xx:xx:xx:xx:26 RSSI: -86
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -78
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -79
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -81
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -80
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -81
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -79
[CHG] Device 2C:xx:xx:xx:xx:B6 RSSI: -81

有没有办法摆脱这些“[CHG]”消息中的大部分？有点像bluetoothctl --quiet？

【问题讨论】：

标签： bluetooth hci

【解决方案1】：

如果您要求 bluetoothctl 扫描带有scan on 的设备，则会显示这些报告信号强度 (RSSI) 的更改条目。如果您还打开了gnome-control-center bluetooth GUI（它会持续扫描设备），也可能会无意中开启扫描。

【讨论】：