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@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 > [email protected] > http://www.isely.net/cgi-bin/mailman/listinfo/pvrusb2 -- Diego Rivera
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