Re: [PATCH] rtl_bt: Update RTL8852C BT USB firmware to 0x040D_7225

[Juerg Haefliger <juerg.haefliger@canonical.com>]

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Josh,


> Applied and pushed out.
> 
> josh
> 
> On Wed, Jun 7, 2023 at 4:28 AM <hildawu@realtek.com> wrote:
> >
> > From: Hilda Wu <hildawu@realtek.com>
> >
> > This firmware patch update for Realtek RTL8852C BT USB controller
> >
> > Note: This firmware patch needs to be used with driver
> > "btrtl: Firmware format v2 support". Please update the
> > driver with this commit: 9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa

Do I understand this correctly that kernels that don't have this patch (any
kernel < 6.4) can no longer load this v2 BT firmware because it's not
compatible with old drivers? That's a regression, no? The incompatible new
firmware should be named differently so that we don't break old kernels.

The v2 driver [1] seems to support both the old and new firmware binary so IMO
should try to load the new firmware first and fall back to the old one if not
found.

Unless I'm misreading this.

...Juerg

[1]
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa



> > Release Version: 0x040D_7225
> >
> > Signed-off-by: Hilda Wu <hildawu@realtek.com>
> > ---
> >  rtl_bt/rtl8852cu_fw.bin | Bin 113336 -> 112953 bytes
> >  1 file changed, 0 insertions(+), 0 deletions(-)

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