hcitool 스캔에 해당 장치 없음

Raspberry Pi 3 사용, Linux 테스트 4.4.9-v7 + # 884 SMP Fri May 6 17:28:59 BST 2016 armv7l GNU / Linux

root@raspberry:/home/user# hcitool scan
Device is not available: No such device

여기서 무엇이 문제가 될 수 있습니까?

최신으로 업데이트했습니다

#sudo rpi-update

rpi-bluetooth를 설치했습니다

#sudo apt-get install rpi-bluetooth

이것은 dmesg에서 볼 수 있습니다.

root@raspberry:/home/user# dmesg | grep Blue
[   43.442353] Bluetooth: Core ver 2.21
[   43.442453] Bluetooth: HCI device and connection manager initialized
[   43.442477] Bluetooth: HCI socket layer initialized
[   43.442494] Bluetooth: L2CAP socket layer initialized
[   43.442528] Bluetooth: SCO socket layer initialized
[   73.520196] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   73.520215] Bluetooth: BNEP filters: protocol multicast
[   73.520238] Bluetooth: BNEP socket layer initialized

편집하다:

이것은 또한 흥미로울 수 있습니다. 왜 Bluetooth가 아닌가? :

root@raspberry:/home/user# rfkill list
0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no

편집 2 : pi-bluetooth를 다시 설치하려고했습니다.

user@raspberry:~ $ sudo apt-get purge bluez-firmware
[sudo] password for user: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages will be REMOVED:
  bluez-firmware* pi-bluetooth*
0 upgraded, 0 newly installed, 2 to remove and 0 not upgraded.
After this operation, 240 kB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 47373 files and directories currently installed.)
Removing pi-bluetooth (0.1.0) ...
Purging configuration files for pi-bluetooth (0.1.0) ...
Removing bluez-firmware (1.2-3+rpi1) ...

user@raspberry:~ $ sudo apt-get install pi-bluetooth
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following extra packages will be installed:
  bluez-firmware
The following NEW packages will be installed:
  bluez-firmware pi-bluetooth
0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/92.8 kB of archives.
After this operation, 240 kB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Selecting previously unselected package bluez-firmware.
(Reading database ... 47354 files and directories currently installed.)
Preparing to unpack .../bluez-firmware_1.2-3+rpi1_all.deb ...
Unpacking bluez-firmware (1.2-3+rpi1) ...
Selecting previously unselected package pi-bluetooth.
Preparing to unpack .../pi-bluetooth_0.1.0_armhf.deb ...
Unpacking pi-bluetooth (0.1.0) ...
Setting up bluez-firmware (1.2-3+rpi1) ...
Setting up pi-bluetooth (0.1.0) ...
Job for hciuart.service failed. See 'systemctl status hciuart.service' and 'journalctl -xn' for details.

마지막 오류와 관련이 있다고 생각합니다 . hciuart.service에 대한 작업이 실패했습니다. 자세한 내용은 'systemctl status hciuart.service'및 'journalctl -xn'을 참조하십시오.

user@raspberry:~ $ sudo journalctl -xn
-- Logs begin at Sun 2016-05-08 19:48:33 CEST, end at Sun 2016-05-08 19:58:07 CEST. --
May 08 19:52:46 raspberry systemd[1]: Failed to start Configure Bluetooth Modems connected by UART.
-- Subject: Unit hciuart.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit hciuart.service has failed.
-- 
-- The result is failed.
May 08 19:52:46 raspberry systemd[1]: Unit hciuart.service entered failed state.
May 08 19:52:46 raspberry hciattach[1279]: Can't initialize device: Success
May 08 19:52:46 raspberry hciattach[1279]: bcm43xx_init


user@raspberry:~ $ systemctl status hciuart.service
● hciuart.service - Configure Bluetooth Modems connected by UART
   Loaded: loaded (/lib/systemd/system/hciuart.service; enabled)
   Active: failed (Result: exit-code) since Sun 2016-05-08 19:52:46 CEST; 6min ago
  Process: 1279 ExecStart=/usr/bin/hciattach /dev/ttyAMA0 bcm43xx 921600 noflow - (code=exited, status=1/FAILURE)
user@raspberry:~ $ 

나는 같은 문제가 있었다

pi@jarvis:~ $ hcitool dev
Devices:

비활성 hciuart.service 와 함께

pi@jarvis:~ $ systemctl status hciuart.service
● hciuart.service - Configure Bluetooth Modems connected by UART
   Loaded: loaded (/lib/systemd/system/hciuart.service; enabled)
   Active: inactive (dead)

후

pi@jarvis:~ $ sudo systemctl start hciuart.service

나는

pi@jarvis:~ $ systemctl status hciuart.service
● hciuart.service - Configure Bluetooth Modems connected by UART
   Loaded: loaded (/lib/systemd/system/hciuart.service; enabled)
   Active: active (running) since Sat 2017-05-20 17:42:40 CEST; 2s ago

과

pi@jarvis:~ $ hcitool dev
Devices:
    hci0    B8:27:EB:E5:7C:B0

/boot/config.txt 파일에서 다음과 같은 항목을 확인하십시오.

dtoverlay=pi3-disable-bt 

줄의 시작 부분에 #을 추가하여이 줄을 주석 처리하십시오. 주석 처리되지 않은 경우이 라인은 UART에서 블루투스를 분리하고 대신 GPIO 핀으로 UART를 연결합니다. 그것이 당신을 위해 작동하기를 바랍니다!

사용하지 마십시오 BerryBoot, 시도 sudo apt-get update하고 sudo apt-get upgrade. 또는 raspbian공식 사이트 에서 최신 을 다시 설치할 수 있습니다.