Linux_BT_USB_v3.10_20200414_8723DU_BTCOEX_20200103-3535.tgz

The document describes how to install Realtek Bluetooth USB driver to Linux system. The supported kernel version is 2.6.32 - 4.15 1. Install a. Build and install Realtek Bluetooth USB driver. Change to the driver package and execute the below command $ sudo make install If you encounter an error like "depmod: ERROR: Bad version passed /lib/modules/...", please change the lines "depmod -a $(MDL_DIR)" to "depmod -a $(shell uname -r)" b. Insert Realtek rtl8761/rtl8822/rtl8723/rtl8821 usb dongle Check LMP subversion by the following command $ hciconfig -a Now Realtek chip can be recognized and bluetooth function can work. 2. Uninstall a. Unplug Realtek rtl8761/rtl8822/rtl8723/rtl8821 usb dongle. b. Change to the driver package and run $ sudo make uninstall 3. Install BlueZ (optional) New versions of BlueZ can be downloaded from http://www.bluez.org/ Take Ubuntu for example. 1) Setting up Linux build environment Install dbus $ sudo apt-get install libdbus-1-dev Install glib $ sudo apt-get install libglib2.0-dev 2) Decompress and install BlueZ $ sudo tar -Jxvf bluez-5.xx.tar.xz $ sudo cd bluez-5.xx $ sudo ./configure --prefix=/usr --mandir=/usr/share/man --sysconfdir=/etc --localstatedir=/var --libexecdir=/lib $ sudo make $ sudo make install 4. Configure Remote Wakeup Function 1) Check your vendor and product id of Bluetooth device with lsusb $ lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 002: ID 0bda:1724 Realtek Semiconductor Corp. Bus 002 Device 002: ID 0e0f:0003 VMware, Inc. Virtual Mouse Bus 002 Device 003: ID 0e0f:0002 VMware, Inc. Virtual USB Hub Bus 002 Device 004: ID 0e0f:0008 VMware, Inc. 2) Create a new rule in /etc/udev/rules.d/ For example "90-bluetoothwakeup.rules" By the way, the name is not important, $ sudo vim /etc/udev/rules.d/90-bluetoothwakeup.rules Add the following content to the file: SUBSYSTEM=="usb", ATTRS{idVendor}=="0bda", ATTRS{idProduct}=="1724" RUN+="/bin/sh -c 'echo enabled > /sys$env{DEVPATH}/../power/wakeup'" Then save and close the file. In this case, the idVendor is "0bda" and idProduct is "1724". echo "enabled" or "disabled" to enable/disable Bluetooth remote wakeup ability. 3) Re-insert the usb dongle. You can wake up your suspend system by bluetooth device. 5. Check firmware After installing the package, the firmware file would be copied to /lib/firmware/. The /lib/firmware is the default directory including firmware. But for some embedded Linux, the directory may be different.