Hciconfig Hci0 Down, For other HCI commands, see the Bluetooth specification, Volume 2, Part E, Chapter 7, from www. 18+ #577) and my hci0 was DOWN after reboot with all the symptoms described in this topic. And can't be brought up or reset: $ sudo hciconfig hci0 up Can't init device hci0: Connection timed out (110) $ sudo hciconfig hci0 reset Can't init device hci0: Connection timed out (110) Retarting the servies gives the following log errors, even though it seems running ~$ sudo service bluetooth status bluetooth. After these commands, sudo hcitool lescan and its variants all seem to work. hci0 was active, the Bluetooth controller was listed by lsusb -v. org. 2k次。本文详细介绍蓝牙BLE（低功耗蓝牙）的基本概念、调试工具及使用方法。包括bluez软件包的编译、dbus进程间消息传递、hciconfig、hcitool、bluetoothctl和gattool等工具的应用，以及在设备和手机端进行调试的步骤。 – hciconfig hci0 piscan：打开hci0蓝牙设备的可被发现性和可连接性。 – hciconfig hci0 noscan：关闭hci0蓝牙设备的可被发现性和可连接性。 3. $ sudo bluez-simple-agent Traceback (most recent call last): File "/usr/bin/bluez-simple-agent", line 104, in <module> hciconfig is used to configure Bluetooth devices. system ("sudo hciconfig hci0 name " + BTDevice. 2-lts #1 SMP PREEMPT_DYNAMIC Sun, 20 Oct 2024 09:10:37 +0000 x86_64 GNU/Linux sudo hciconfig hci0 up [sudo] password for ilia21: Can't init device hci0: Connection timed out (110) 文章浏览阅读1. sudo modprobe -r btusb sudo modprobe btusb sudo hciconfig hci0 up Can't init device hci0: Connection timed out (110) まず lsusb コマンドでドングルが認識されていることを確認。 PlanexのBT-Micro4の場合、 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode) と認識されました。 次にドライバの作動確認。 hciconfig コマンドを使用。 以下のような結果になりました。 Apr 3 11:49:37 majestix systemd-udevd[4625]: Process '/bin/hciconfig hci0 up' failed with exit code 1. hciconfig：用于配置和管理蓝牙硬件接口。 可以使用以下命令： – hci0 up/down：启用/禁用蓝牙接口 – hci0 reset：重置蓝牙接口 – hci0 piscan：将蓝牙接口设置为可见可被扫描 – hci0 noscan：将蓝牙接口设置为不可见不被扫描 – hci0 lm ：设置蓝牙连接的模式 sudo hciconfig hci0 up : This was needed for my Raspberry Pi 3, with the built-in BT found at hci0. Use the command “rfkill” to enable or disable wireless devices, including bluetooth adapters. You are able to fix this issue as of now without installing anything or rebooting. bluetoothctl：bluetoothctl是Linux系统下一个更高级的蓝牙控制工具，可以提供更多的操作。 其中常用的命令包括： sudo hciconfig hci0 up [sudo] password for ilia21: sudo bluetoothctl power on Changing power on succeeded uname -a Linux archlinux 6. $ sudo hciconfig hci0 down $ sudo hciconfig hci0 up $ sudo hcitool lescan I am trying to bring up a Bluetooth module over HCI UART on an i. system ("sudo hciconfig hci0 class 0x05C0") # General Discoverable Mode os. All the Devices: $ sudo hciconfig hci0 piscan Can't set scan mode on hci0: Network is down (100) $ sudo hciconfig hci0 reset Can't init device hci0: Operation not supported (95) $ /etc/init. Note: From the output below, the USB bus is on “hci0” To toggle the status, you can use up,down or reset hciconfig hci0 up hciconfig hci0 down hciconfig hci0 reset 4. hciconfig hci0 down modprobe -r hci_uart modprobe btbcm # just in case, you can check lsmod modprobe hci_uart hciconfig hci0 up Link mode: SLAVE ACCEPT pi@raspberrypi:~ $ sudo hciconfig hci0 up Can't init device hci0: Operation not possible due to RF-kill (132) pi@raspberrypi:~ $ hciconfig hci0 version Can't read version info hci0: Network is down (100) pi@raspberrypi:~ $ systemctl status hciuart. So for me the bug is within 3. Apr 15, 2024 · EDIT2: Just borrowed a laptop with arch install from my friend, and this exact same adapter works there too, I tried hciconfig down and reset before plugging it back to my pc, no luck EDIT3: Downgrading to kernel 6. hciconfig -a shows hci0 I have to add this, because there is another situation in which you run into the exact same symptoms: Having both KDE and Gnome installed. 6 kernel (3. 235371] Bluetooth: HCI socket layer initialized And can't be brought up or reset: $ sudo hciconfig hci0 up Can't init device hci0: Connection timed out (110) $ sudo hciconfig hci0 reset Can't init device hci0: Connection timed out (110) Retarting the servies gives the following log errors, even though it seems running ~$ sudo service bluetooth status bluetooth. 10 kernel (3. Just run the following: sudo rfkill unblock all sudo hciconfig hci0 down sudo rmmod btusb sudo modprobe btusb sudo hciconfig hci0 up I first tried the first 3. ajj9, qwukis, vvtmle, 5ksmt, y9hyk, ozmwd, mfzm4, 9qc2u, rnzf, hd80x,