Bluetooth Dongle Missing Firmware

[Kuijibo]

I made this post on Reddit, but I think here is more applicable.

 

I'm a bit of a novice when it comes to Linux.

I got a Bluetooth dongle that is supposedly long-range, but when I run bluetoothctl, no default controller is available. After some googling, I found that when I run dmesg, I get:

[  210.883031] bluetooth hci0: Direct firmware load for rtl_bt/rtl8761b_fw.bin failed with error -2
[  210.883032] Bluetooth: hci0: RTL: firmware file rtl_bt/rtl8761b_fw.bin not found

 

After some more googling, I wasn't clear on how to install firmware for my dongle. Most sources I could find involved copying the firmware into the /usr/lib/firmware directory, but on unRAID that firmware directory is nonexistent.

There may be some assumptions I'm making about Linux because I come from using windows all my life and unRAID for about a year or two.

I've also found that the firmware should be included in unRAID.

 

Edit: I might be wrong about it being included. I swore I saw a forum post about it being added, but I can only find this post and there is no definitive answer given.

Edited September 16, 2021 by Kuijibo

[trurl]

3 minutes ago, Kuijibo said:

I've also found that the firmware should be included in unRAID.

Do you mean you think it is already included in Unraid? Not clear how you would even use bluetooth with Unraid. What were you planning to do?

[Kuijibo]

Yeah I've actually already done it with another, shorter-range bluetooth dongle. I'm hooking it up to Xiaomi Mi Flora sensors. 

 

I saw a post somewhere else where someone was asking for the firmware to be included in the release (the 8761 realtek firmware) and a reply was posted that said, we'll include it in the next release. So, it should be included.

 

Edit: in topic about being included in unRAID

Edited September 16, 2021 by Kuijibo

[Kuijibo]

Update:

 

From that forum post I passed through /dev/bus/usb/001/002 (which is my Bluetooth dongle) and ran hciconfig in Home Assistant's console.

/config # hciconfig
hci0:   Type: Primary  Bus: USB
        BD Address: 00:00:00:00:00:00  ACL MTU: 0:0  SCO MTU: 0:0
        DOWN 
        RX bytes:63 acl:0 sco:0 events:6 errors:0
        TX bytes:18 acl:0 sco:0 commands:6 errors:0

Two things stand out to me here. The first being that there is no BD Address for the device.

 

The second being the DOWN flag on the device. when I run hciconfig hci0 up I get:

/config # hciconfig hci0 up
Can't init device hci0: No such file or directory (2)

[Mirano]

On 9/16/2021 at 9:31 PM, Kuijibo said:

Yeah I've actually already done it with another, shorter-range bluetooth dongle. I'm hooking it up to Xiaomi Mi Flora sensors. 

 

I saw a post somewhere else where someone was asking for the firmware to be included in the release (the 8761 realtek firmware) and a reply was posted that said, we'll include it in the next release. So, it should be included.

 

Edit: in topic about being included in unRAID

What did you end up getting?

 

I also want to connec tto my flora sensors but ever since i moved my server to the attic it wont connect. (using built in bluetooth on MB)