[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 #140 from MMD (mmdesai20@gmail.com) ---
(In reply to Swyter from comment #137)
> Hi! There's actually a script that should help with this, at least as
> reference:
> https://gist.github.com/nevack/6b36b82d715dc025163d9e9124840a07
> 
> It's for newer kernels, though. So while the btusb.c part should more or
> less apply cleanly (because the existing/original CSR workaround stuff has
> been there for a while) the ERR_DATA_REPORTING stuff (on hci_core.c) is new
> and will need to be stripped out when back-porting the patch.
> 
> Who knows, maybe it's a good idea to ask someone from Canonical to add it to
> Ubuntu, once it's been more battle-tested. Hopefully (as it officially gets
> into stable kernels) distros downstream will pick this up, even on super old
> Linux versions.
> 
> Hope that helps. :)

Hi tried this script, but it gives below error
cp: cannot stat '/usr/lib/modules/5.8.2-050802-generic/build/.config': No such
file or director

I checked there is no such directory and file.

I have Ubuntu 20.04 LTS with Kernel 5.4.0-42-generic. Then updated kernel to
hoping that 5.8.2-050802-generic hoping by Bluetooth device will work with this
.(As you mentioned this script is accepted in 5.7 and 5.8 version of kernel)
With new kernel 5.8.2-050802-generic, it detects logitech M337 mouse , but not
able to configure. Then I tried above script and got error
cp: cannot stat '/usr/lib/modules/5.8.2-050802-generic/build/.config': No such
file or director

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