On 2020-07-18 08:51, George N. White III wrote:
Did the packaging have the bluetooth logo https://www.bluetooth.com/develop-with-bluetooth/marketing-branding/? To get the logo your device has to pass the Bluetooth Qualification Process. Can you find your device https://launchstudio.bluetooth.com/Listings/Search? I did find https://launchstudio.bluetooth.com/ListingDetails/48853.
The packaging actually lists
https://launchstudio.bluetooth.com/ListingDetails/75270
btmon shows... > HCI Event: Command Complete (0x0e) plen 6 #62 [hci0] 12.841706 Delete Stored Link Key (0x03|0x0012) ncmd 1 Status: Unsupported Feature or Parameter Value (0x11) Num keys: 0BT has lots of features, you may be able to configure around this or your device may need "quirks" support in a driver.
And, the instructions for this can be found?
So, I would stay away from Version 5 products for the time being. Side note: The bluez maintainers didn't respond to my query about support for this adapter. :-(From a youtube comment: "I bought some generic CSR V5, and my PC detected them, but they would not connect to any devices. All 5 of them don't work."
Some cheap USB rf devices were designed to be bundled with a particular external device (keyboard, mouse, headphone, etc) and lack capabilities expected from a general purpose device.
I expect the maintainers have enough work just keeping up with requests from manufacturers. One way to get their attention is to send them a couple devices, but I doubt they are interested in devices that weren't qualified.
It would appear that this one is qualified.
And, at the very least, they could respond with a request for more information or a "gift".
Try a USB 2 port -- some bt5 dongles don't work with USB 3 ports (not surprising, due to the RF interference problems of USB 3).
I am using a USB 2 port.