akvcam module fails with kernel 5.7

[darkonen]

akvcam module fails with kernel 5.7
v4l2 API have some changes (VFL_TYPE_GRABBER => VFL_TYPE_VIDEO)
here a patch to solve it
akvcam.zip

darkonen

[dx9s]

Not sure if this is related.. but recently the akvcam driver has been failing on load and I think there was a kernel update recently.. I recompiled from latest git and still same:

$ sudo modprobe akvcam
[sudo] password for dx:
Killed
$ dmesg
[...]
[ 50.385782] media: Linux media interface: v0.10
[ 50.390278] videodev: Linux video capture interface: v2.00
[ 50.393883] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
[ 50.393886] PGD 0 P4D 0
[ 50.393888] Oops: 0000 [#1] PREEMPT SMP PTI
[ 50.393890] CPU: 4 PID: 3451 Comm: modprobe Tainted: P OE 4.18.0-13-lowlatency #14~18.04.1-Ubuntu
[ 50.393891] Hardware name: System76 Wild Dog Pro/Z370 HD3P-CF, BIOS F5 Z5 12/15/2017
[ 50.393897] RIP: 0010:akvcam_driver_read_device+0x46/0x240 [akvcam]

[dx9s]

the above was caused by some issue I could not find in the config.ini .. started from fresh config.ini one "output" to one "capture" and it now works.. still trying to find a cause, predictable it hard to pin down.

[hipersayanX]

5.7 has not arrived to Arch repositories yet, will check once it arrives to the repository.

[jfernandz]

Is this patch going to be merged to upstream in a future?

[hipersayanX]

Test latest commit.

[jfernandz]

@hipersayanX I'm trying to compile it again from your AUR package but apparently the latest commit in my local is 'Package updated'

[hipersayanX]

@wyre try again.

[darkonen]

I's OK
module with this commit works with kernel 5.7.2