[Bug 60824] [PATCH][regression] Cambridge Silicon Radio, Ltd Bluetooth Dongle unusable

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=60824

--- Comment #84 from Swyter (swyterzone@gmail.com) ---
Interesting. Sounds like another quirk for that specific model that was hidden
until now; they don't support the Read Default Erroneous Data Reporting
command.

Let's try something, continuing with the same patches as before, change this in
net/bluetooth/hci_core.c:

>       if (hdev->commands[18] & 0x04)
>               hci_req_add(req, HCI_OP_READ_DEF_ERR_DATA_REPORTING, 0, NULL);

...to this:
>       if (false)
>               hci_req_add(req, HCI_OP_READ_DEF_ERR_DATA_REPORTING, 0, NULL);

...and see if the log moves a bit, maybe that fixes it. Who knows? Save the log
somewhere.


Chances are that the last change wasn't enough. So additionally, after that
change this in net/bluetooth/hci_core.c:
>       /* Set erroneous data reporting if supported to the wideband speech
>        * setting value
>        */
>       if (hdev->commands[18] & 0x08) {

...to this:
>       /* Set erroneous data reporting if supported to the wideband speech
>        * setting value
>        */
>       if (false) {


Technically with that Linux should ignore the wideband error thingy altogether.
Sounds like we need a HCI_QUIRK_WIDEBAND_SPEECH_NOT_SUPPORTED. The opposite of
the HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED that already exists.

Anyway, good progress. This is a different bug. ¯\_(ツ)_/¯

-- 
You are receiving this mail because:
You are the assignee for the bug.