Adapted Code to new driver version and fixed some problems

[cdorn0]

Over christmas I did some work on the driver. I tried to fix the issues with the crash and support of OBS. Both should be fine now. Also all supported pixelformats should work now.

[derrod]

Very nice! I'll try to review and hopefully merge it not too long from now depending on when I get around to running the card on Linux again.

(I also hope to find some time to learn more about linux kernel driver development, maybe getting DKMS or working [if you haven't already]. And long term I'd like to completely remove the binary blobs by decompiling and rebuilding the required parts)

[travisvroman]

Just wanted to toss out there that I tried @cdorn0 's branch and it works perfectly on my setup - thank you!

I'm running Ubuntu Studio 21.04, using the 5.13.0-28-lowlatency kernel.

[strank]

Adding a comment here for others that might want to try something similar until I get time to investigate a bit more on my fork.

I almost got the AverMedia Live Gamer Bolt (GC555) working with @cdorn0 's current master branch, up to the video input showing in OBS. It does currently crash after a very short time though, with the journal showing lots of "BUG: scheduling while atomic" messages. This is on Manjaro kernel 5.16.14-1. I hope that the issue only requires small changes to account for changes in the newer kernel.

Changes needed in the repo to compile for the GC555, see my fork:

• Change the device pci id in two places
• Change include of <stdarg.h> to <linux/stdarg.h>

[Cairan]

I also get a lot of the BUG: scheduling while atomic: kworker/6:1/210/0x00000002 errors on 5.15.19 (Slackware 15's default kernel) but not on my self-compiled 5.10.47 from last year... HDMI Input capture does seem to work in OBS now with a couple of trial-and-error with 5.15 but works without much issues on 5.10... I'd stick to 5.10 for the moment if I could but I have an unrelated issue with my flat scanner apps crashing on 5.10 but not on 5.4 or 5.15...

The BUG kernel messages saturate the syslog really fast so I had to do a couple of shenanigans to prevent /var/log from filling up but it works well enough to stream with. Thanks for the work on updating the driver for recent kernels, that is very appreciated.

[cdorn0]

There seems to be an issue with recent kernel changes. Unfortunately I am very busy right now, but I will try to find the issue that leads to the freeze as soon as I find the time

[PAI5REECHO]

Straight up crashes on kernel version 6.2.8 as soon as I ffplay /dev/video0