Realtek
lastmod 2022-09-28created 2022-09-286 edits
Realtek Semiconductor Corp. (Traditional Chinese: 瑞昱半導體股份有限公司) is a fabless semiconductor company located in Hsinchu Science Park, Republic of China (Taiwan), founded in October 1987. It was listed on the Taiwan Stock Exchange in 1998. As of 2015, Realtek had 2,500 employees, more than 78% of whom are research and development specialists.
Drivers
Rtl8761
Rtl8761bu
- Installing a Bluetooth 5.0 dongle on Ubuntu 20.04
- Bluetooth RTL: firmware file rtl_bt/rtl8761bu_fw.bin not found - Linux Mint Forums
- Free Board - A question about installing the driver for a Bluetooth 5.0 dongle bought at Daiso.
- Elif-dot/RTL8761BU: Linux driver for RTL8761BU with better instructions
- Realtek RTL8761B - LinuxReviews
Korean: 블루투스 dongle (bought at Daiso)
When checking with dmesg, it may report that the rtl_bt/rtl8761bu_fw.bin file cannot be found:
[Sep28 12:33] usb 1-2.4.4: new full-speed USB device number 11 using xhci_hcd
[ +0.130721] usb 1-2.4.4: New USB device found, idVendor=0bda, idProduct=8771, bcdDevice= 2.00
[ +0.000011] usb 1-2.4.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ +0.000004] usb 1-2.4.4: Product: Bluetooth Radio
[ +0.000004] usb 1-2.4.4: Manufacturer: Realtek
[ +0.000002] usb 1-2.4.4: SerialNumber: 00E04C239987
[ +0.056348] Bluetooth: hci1: RTL: examining hci_ver=0a hci_rev=000b lmp_ver=0a lmp_subver=8761
[ +0.000983] Bluetooth: hci1: RTL: rom_version status=0 version=1
[ +0.000009] Bluetooth: hci1: RTL: loading rtl_bt/rtl8761bu_fw.bin
[ +0.009390] bluetooth hci1: Direct firmware load for rtl_bt/rtl8761bu_fw.bin failed with error -2
[ +0.000009] Bluetooth: hci1: RTL: firmware file rtl_bt/rtl8761bu_fw.bin not found
Method #1: use the #rtl8761b firmware: