[pvrusb2] v4l-cx25840.fw

[Diego Rivera]

I think having both devices use the same firmware file may be a coincidence, and may not be
dependable to remain so long-term. Thus, I think the correct solution here is for Ubuntu/V4L to ship
the correct firmware files to begin with (licenses permitting).
Just my $0.02, worth exactly what you paid to get it 😄
Cheers!

On Sat, 2020-08-29 at 11:01 +0200, Jan Ceuleers wrote:
> Dear list,
> I would like to reiterate a point I made in April last year, because itbit me once again.
> I upgraded the OS on my MythTV master backend yesterday (from Ubuntu16.04 to Ubuntu 18.04). This
> broke my PVRUSB2 tuners, because the V4Lfirmware files were overwritten by the upgrade.
> Here is the point I made a while ago; please focus on the last paragraph:
> On 22/04/2019 09:43, Jan Ceuleers wrote:
> > On 22/04/2019 06:57, Jan Ceuleers wrote:
> > > Mike and Diego, replacing the firmware has resolved my audio problem. Iam now running the
> > > fwextracted firmware for both cx25840 and 73xxx. Idid not check which-one fixed it.
> > By the way, the md5sums now look like this:
> > 
> > root at dracor:~# md5sum /lib/firmware/v4l*fw7d3bb956dc9df0eafded2b56ba57cc42  /lib/firmware/v4l-
> > cx231xx-avcore-01.fw588f081b562f5c653a3db1ad8f65939a  /lib/firmware/v4l-cx23418-
> > apu.fwb6c7ed64bc44b1a6e0840adaeac39d79  /lib/firmware/v4l-cx23418-
> > cpu.fw95bc688d3e7599fd5800161e9971cc55  /lib/firmware/v4l-cx23418-
> > dig.fw305dba74bbe5905447add8883f3ecb68  /lib/firmware/v4l-cx2341x-
> > dec.fw9b39b3d3bba1ce2da40f82ef0c50ef48  /lib/firmware/v4l-cx2341x-
> > enc.fwa9f8f5d901a7fb42f552e1ee6384f3bb  /lib/firmware/v4l-cx23885-avcore-
> > 01.fwa9f8f5d901a7fb42f552e1ee6384f3bb  /lib/firmware/v4l-
> > cx25840.fwffed594f0edea15de8c19cfd13bc4adf  /lib/firmware/v4l-pvrusb2-24xxx-
> > 01.fw3b7288416144467369ed2b5b10cf931d  /lib/firmware/v4l-pvrusb2-29xxx-
> > 01.fwac95c4c24e4edca0f2af5e44867a7204  /lib/firmware/v4l-pvrusb2-73xxx-01.fw
> > 
> > Notice that the cx25840 file is identical to the cx23885 file whichUbuntu kindly provided. So
> > should pvrusb2 load that firmware fileinstead (thereby possibly eliminating the compatibility
> > issue with othercx25840 cards in the same system which might require the other firmwareimage)?
> 
> The issue is that Ubuntu ships the wrong cx25840 firmware file, andsimply copying Ubuntu's cx23885
> file solves it.
> It would be simpler, and more robust, if pvrusb2 loadedv4l-cx23885-avcore-01.fw instead of v4l-
> cx25840.fw.
> This suggestion assumes that the cx25840 firmware file Ubuntu ships isthe "right"-one for users
> other than pvrusb2, because if it isn't theissue is a bug that should be fixed by Ubuntu or V4L.
> Thanks, Jan
> _______________________________________________pvrusb2 mailing listpvrusb2 at isely.net
> http://www.isely.net/cgi-bin/mailman/listinfo/pvrusb2
-- 



Diego Rivera

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