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lwfinger / rtl8723bu

Driver for RTL8723BU
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RTL8723BU BT driver #2

Open anikol opened 9 years ago

anikol commented 9 years ago

Thank you very much for this driver. But is there any known Bluetooth driver for RTL8723BU in existence?

lwfinger commented 9 years ago

I do not know. What USB ID does lsusb show?

anikol commented 9 years ago

0bda:b720 Realtek Semiconductor Corp. I also tried a BT driver from rtl8723au_bt repository. It makes the module recognized but fails to bring the interface up.

sudo hciconfig hci1 -a hci1: Type: BR/EDR Bus: USB BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0 DOWN RX bytes:0 acl:0 sco:0 events:0 errors:0 TX bytes:3 acl:0 sco:0 commands:1 errors:0

sudo hciconfig hci1 up Can't init device hci1: Input/output error (5)

I am running Ubuntu 14.04 x32

uname -r 3.13.0-46-generic

lwfinger commented 9 years ago

I added that USB ID to the tables. Do a fresh 'git pull', and switch to the kernel branch with 'git checkout kernel'. Then make and 'sudo make install'. Finally, remove any existing drivers with 'sudo modprobe -rv btusb', 'sudo modprobe -rv rtk_btusb', and 'sudo modprobe -v btusb'. Finally, post any dmesg output that mentions btusb.

anikol commented 9 years ago

I switched to the "new" branch and the driver started to work right away. Before I used the "master" branch. My bad. Thank you very much and sorry about that.

By the way, the latest commit to btusb.c of the kernel branch seems to be unnecessary since 0bda:0xb720 had already been blacklisted under /* Realtek 8723BU Bluetooth devices */.

lwfinger commented 9 years ago

I have reverted that change. I did not have much time when I added it, and failed to look carefully enough. In addition, I thought that change was only applied to the kernel branch.

bomellberg commented 9 years ago

Is the rtl8723au_bt driver valid for 2.6.33? I'm asking because I can't seem to get scanning to work. The driver loads fine and brings up hci0

~ # hciconfig -a hci0: Type: USB BD Address: 5C:F3:70:17:E4:1B ACL MTU: 820:8 SCO MTU: 255:16 UP RUNNING PSCAN ISCAN RX bytes:415 acl:0 sco:0 events:22 errors:0 TX bytes:578 acl:0 sco:0 commands:21 errors:0 Features: 0xff 0xff 0xff 0xfe 0xdb 0xff 0x7b 0x87 Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 Link policy: RSWITCH HOLD SNIFF PARK Link mode: SLAVE ACCEPT Name: 'LUCAS3 (0)' Class: 0x3e0100 Service Classes: Networking, Rendering, Capturing Device Class: Computer, Uncategorized HCI Ver: (0x6) HCI Rev: 0xb LMP Ver: (0x6) LMP Subver: 0x8723 Manufacturer: not assigned (93)

Scanning doesn't find anything. Also, the device is not visible to any other BT equipment, despite PSCAN ISCAN.

lwfinger commented 9 years ago

I have no RTL8723BU hardware; however, as far as I know, the driver works on all USB-based BT hardware. There is a different driver for SDIO hardware (RTL8723BS).

dp4qb commented 8 years ago

Hello. Thank you for the drivers, but I've got an issue and I hope you can hint me where I'm wrong. I've tried to compile this module on Raspberry Pi2 (ARMv7 architecture), and I can't make BT work -- hcitool does not see it. WiFi works, though. I've thought it might be that this driver does not provide BT functions (although some lines in Makefile made me think it does)? I've followed your posts above and compiled rtl8723au_bt, but no WiFi/BT interface are visible with it.

Kernel 4.1.7+v7. Sorry for a dumb questions here, but I'm not very familiar with kernel modules.

Thank you :)

lwfinger commented 8 years ago

What Realtek BT device do you have?

dp4qb commented 8 years ago

Totally forgot about that. As far as I understand, it's RTL8723BU. 0bda:b720 Realtek Semiconductor Corp.

lwfinger commented 8 years ago

The kernel branch of http://github.com/lwfinger/rtl8723au_bt.git will now work for the BT part of RTL8723BU. I just pushed a fix.

dp4qb commented 8 years ago

Thank you. Unfortunately, got these errors:

make -C /lib/modules/4.1.7-v7+/build M=/home/pi/rtl8723au_bt modules
make[1]: Entering directory '/usr/src/linux-headers-4.1.7-v7+'
  CC [M]  /home/pi/rtl8723au_bt/btusb.o
  CC [M]  /home/pi/rtl8723au_bt/btrtl.o
/home/pi/rtl8723au_bt/btrtl.c:343:5: error: redefinition of ‘btrtl_setup_realtek’
In file included from /home/pi/rtl8723au_bt/btrtl.c:26:0:
/home/pi/rtl8723au_bt/btrtl.h:47:19: note: previous definition of ‘btrtl_setup_realtek’ was here
scripts/Makefile.build:264: recipe for target '/home/pi/rtl8723au_bt/btrtl.o' failed
make[2]: *** [/home/pi/rtl8723au_bt/btrtl.o] Error 1
Makefile:1384: recipe for target '_module_/home/pi/rtl8723au_bt' failed
make[1]: *** [_module_/home/pi/rtl8723au_bt] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-4.1.7-v7+'
Makefile:24: recipe for target 'all' failed
make: *** [all] Error 2

I've installed the latest Raspbian (Jessie), installed gcc-4.7, downloaded headers from this folder: http://www.niksula.hut.fi/~mhiienka/Rpi/linux-headers-rpi/

lwfinger commented 8 years ago

I think this is now fixed, but I cannot test with my current kernel configuration.

Please pull again and retry.

NickNamerr commented 8 years ago

I am using branch rtl8723bu and kernel version 4.2.0-17, lsusb: Bus 002 Device 008: ID 0bda:b720 Realtek Semiconductor Corp.

WiFi is working well, BT interface does not appearing in system: ~/rtl8723bu$ hcitool dev Devices:

lwfinger commented 8 years ago

There is no BT driver here. You need to use the kernel branch of http://github.com/lwfinger/rtl8723au_bt.git.

dp4qb commented 8 years ago

Thank you, now it's installing correctly. Although I can't make it scan or appear visible. hcitool, hciconfig are showing the adapter as working, but it alwasy returns no scan results. That's odd, but I couldn't make it scan in Windows also. Maybe my usb dongle is broken.

lwfinger commented 8 years ago

My dongle scans and connects just like any other device. It also works with Windows 10 using the driver built into that OS. I did not need the mini-CD that came with the device.

LorenzoBianconi commented 8 years ago

Hi Larry,

I have a RTL8723BU usb device. WiFi device works fine but BT one is not able to identify other nearby BT devices (using hcitool) despite that it is recognized by the system. I used master branch. Any suggestions? Thanks

Lorenzo

bomellberg commented 8 years ago

Lorenzo,

We have had this issue as well. Try turning the WiFi interface on first, before scanning for nearby Bluetooth devices. It solved our problem.

/Bo

LorenzoBianconi commented 8 years ago

Hi Bo,

I tried to turn on/off WiFi interface but still same issue. which device are you using? Thx Lorenzo

bomellberg commented 8 years ago

We have the LM811 from LM-Technologies. It's based on RTL8723BU.

http://lm-technologies.com/pcat/modules/bluetooth-and-wifi-modules/

I need to run the wpa_supplicant which starts the wifi driver and gets my wlan0-interface up, before I can trust the bluetooth scanning results.

LorenzoBianconi commented 8 years ago

I am using the same chip and wpa_supplicant is running as well since I am connected to a wpa2 AP with that chip. Are you using hcitool to perform BT scan? Are you running the master branch at latest commit? Thx

Lorenzo

bomellberg commented 8 years ago

Yes, latest commit. This is a session:

hcid[123]: Bluetooth HCI daemon hdev=0 hcid[123]: HCI dev 0 up hcid[123]: Starting security manager 0 Starting sdpd OBEX File Transfer service registered ~ # hcitool scan Scanning ... D8:FC:93:12:9A:BB MELLBB1-L1 08:ED:B9:DC:FD:D8 n/a

Make sure you have an antenna connected.

rvsrvs commented 8 years ago

I have the same problem Lorenzo has above. Wifi runs great but Bluetooth seems to fail silently

I'm running the Dragon WiFi/Bluetooth dongle shown here: http://www.amazon.com/gp/product/B00X9SSUXO which is based on the RealTek RTL8723BU chipset

uname -a reports: Linux raspberrypi 4.1.18-v7+ #846 SMP Thu Feb 25 14:22:53 GMT 2016 armv7l GNU/Linux

I built and installed the master branch of: https://github.com/lwfinger/rtl8723bu with no errors or warnings I built and installed the kernel branch of: http://github.com/lwfinger/rtl8723au_bt.git with no errors or warnings

On boot I see the following in /var/log/messages:

Mar 7 20:17:10 raspberrypi kernel: [ 6.338175] RTL871X: module init start Mar 7 20:17:10 raspberrypi kernel: [ 6.338204] RTL871X: rtl8723bu v4.3.6.11_12942.20141204_BTCOEX20140507-4E40 Mar 7 20:17:10 raspberrypi kernel: [ 6.338212] RTL871X: rtl8723bu BT-Coex version = BTCOEX20140507-4E40 Mar 7 20:17:10 raspberrypi kernel: [ 6.496968] RTL871X: rtw_ndev_init(wlan0) Mar 7 20:17:10 raspberrypi kernel: [ 6.498601] usbcore: registered new interface driver rtl8723bu Mar 7 20:17:10 raspberrypi kernel: [ 6.498617] RTL871X: module init ret=0 Mar 7 20:17:10 raspberrypi kernel: [ 12.303766] RTL871X: RTW_ADAPTIVITY_EN_AUTO, chplan:0x20, Regulation:0,0 Mar 7 20:17:10 raspberrypi kernel: [ 12.303797] RTL871X: RTW_ADAPTIVITY_MODE_NORMAL Mar 7 20:17:10 raspberrypi kernel: [ 12.949213] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready Mar 7 20:17:10 raspberrypi kernel: [ 14.956691] RTL871X: nolinked power save enter Mar 7 20:17:11 raspberrypi kernel: [ 15.984491] RTL871X: RTW_ADAPTIVITY_EN_AUTO, chplan:0x20, Regulation:0,0 Mar 7 20:17:11 raspberrypi kernel: [ 15.984539] RTL871X: RTW_ADAPTIVITY_MODE_NORMAL Mar 7 20:17:11 raspberrypi kernel: [ 16.368986] RTL871X: nolinked power save leave Mar 7 20:17:13 raspberrypi kernel: [ 18.432298] RTL871X: rtw_set_802_11_connect(wlan0) fw_state=0x00000008 Mar 7 20:17:13 raspberrypi kernel: [ 18.462749] RTL871X: start auth Mar 7 20:17:13 raspberrypi kernel: [ 18.467759] RTL871X: auth success, start assoc Mar 7 20:17:13 raspberrypi kernel: [ 18.472249] RTL871X: rtw_cfg80211_indicate_connect(wlan0) BSS not found !! Mar 7 20:17:13 raspberrypi kernel: [ 18.472283] RTL871X: assoc success Mar 7 20:17:13 raspberrypi kernel: [ 18.472406] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready Mar 7 20:17:13 raspberrypi kernel: [ 18.505914] RTL871X: send eapol packet Mar 7 20:17:13 raspberrypi kernel: [ 18.514633] RTL871X: send eapol packet Mar 7 20:17:13 raspberrypi kernel: [ 18.514942] RTL871X: set pairwise key camid:4, addr:04:a1:51:aa:32:5a, kid:0, type:AES Mar 7 20:17:13 raspberrypi kernel: [ 18.521511] RTL871X: set group key camid:5, addr:04:a1:51:aa:32:5a, kid:2, type:AES

Which is odd bc I would think I should not see RTL871X but RTL872X

ifconfig reports:

wlan0 Link encap:Ethernet HWaddr 7c:c7:09:67:71:d6
inet addr:192.168.5.9 Bcast:192.168.5.255 Mask:255.255.255.0 inet6 addr: fe80::8c7a:d93a:374b:87b4/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:35 errors:0 dropped:199 overruns:0 frame:0 TX packets:29 errors:0 dropped:2 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:6291 (6.1 KiB) TX bytes:5628 (5.4 KiB)

and I am able to ssh to the device on that IP address, so WiFi is functional

lsusb reports: Bus 001 Device 008: ID 0bda:b720 Realtek Semiconductor Corp.

hciconfig -a reports: hci0: Type: BR/EDR Bus: USB BD Address: 7C:C7:08:67:71:D6 ACL MTU: 820:8 SCO MTU: 255:16 UP RUNNING RX bytes:750 acl:0 sco:0 events:54 errors:0 TX bytes:641 acl:0 sco:0 commands:54 errors:0 Features: 0xff 0xff 0xff 0xfe 0xdb 0xff 0x7b 0x87 Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 Link policy: RSWITCH HOLD SNIFF PARK Link mode: SLAVE ACCEPT Name: 'RTK_BT_4.0' Class: 0x000000 Service Classes: Unspecified Device Class: Miscellaneous, HCI Version: 4.0 (0x6) Revision: 0xb LMP Version: 4.0 (0x6) Subversion: 0x8723 Manufacturer: Realtek Semiconductor Corporation (93)

'sudo hcitool lescan' reports: Set scan parameters failed: Operation not permitted

so I do: sudo hciconfig hci0 down sudo hciconfig hcio up sudo service bluetooth restart sudo service dbus restart

and now 'sudo hcitool lescan' reports:

LE Scan ...

But never finds anything... There is definitely a nearby iBeacon because if I now unplug the realtek dongle and plug in another USB bluetooth dongle based on the broadcom 20702A1 chipset and say:

sudo hcitool lescan

I get: LE Scan ... C0:C4:AB:1C:AF:12 (unknown) 5B:0E:27:ED:68:CF (unknown) 5B:0E:27:ED:68:CF (unknown) 6F:C6:2C:55:72:CA (unknown) 6F:C6:2C:55:72:CA (unknown) F7:37:18:B7:BB:85 (unknown) F7:37:18:B7:BB:85 BKON D3:E1:91:92:C9:3F (unknown) D2:05:3A:D6:F1:EC (unknown)

Any thoughts on what I'm doing wrong?

ben423423n32j14e commented 8 years ago

I have the same problem as everyone else it would seem with the RTL8723BU, the bluetooth device is found by hcitool but cannot see any devices if I run hcitool scan, anyone found a fix for this?

nagpai commented 7 years ago

i successfully installed driver for RTL8723BU. however if i upgrade kernel wifi goes off.. How do i fix this?

lwfinger commented 7 years ago

Every out-of-kernel driver needs to be reinstalled when the kernel changes. You cannot escate that truth!

nagpai commented 7 years ago

sorry, my bad. new to this. Thanks for providing these drivers. life savers indeed

ferbar commented 7 years ago

For everyone using the kernel branch of rtl8723au_bt with Linux kernel 4.1 without any scan results: It seems that the firmware upload is disabled by default for kernel 4.1, as well as there is the usb ID missing for our device. See https://github.com/lwfinger/rtl8723au_bt/issues/54 for a patch.