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v4l2_get_timestamp after trying sudo insmod #214

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MuradMathematics opened this issue Mar 31, 2019 · 1 comment · Fixed by #219
Closed

v4l2_get_timestamp after trying sudo insmod #214

MuradMathematics opened this issue Mar 31, 2019 · 1 comment · Fixed by #219

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@MuradMathematics
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Step 2: Describe your environment

  • v4l2loopback version: latest (1.2.1)

  • kernel version: Linux archlabs 5.0.5-arch1-1-ARCH gstreamer v4l2sink support #1 SMP PREEMPT Wed Mar 27 17:53:10 UTC 2019 x86_64 GNU/Linux

  • Distribution (+version):

LSB Version: 1.4
Distributor ID: ArchLabs
Description: ArchLabs Linux
Release: 2019.1.20
Codename: ArchLabs

Step 3: Describe the problem:

Steps to reproduce:

Install as described on the main page, some errormessages but overall everything seems fine

make -C /lib/modules/uname -r/build M=/home/murad/Downloads/v4l2loop/v4l2loopback-master modules_install
make[1]: Verzeichnis „/usr/lib/modules/5.0.5-arch1-1-ARCH/build“ wird betreten
INSTALL /home/murad/Downloads/v4l2loop/v4l2loopback-master/v4l2loopback.ko
At main.c:160:

  • SSL error:02001002:system library:fopen:No such file or directory: crypto/bio/bss_file.c:72
  • SSL error:2006D080:BIO routines:BIO_new_file:no such file: crypto/bio/bss_file.c:79
    sign-file: certs/signing_key.pem: No such file or directory
    DEPMOD 5.0.5-arch1-1-ARCH
    make[1]: Verzeichnis „/usr/lib/modules/5.0.5-arch1-1-ARCH/build“ wird verlassen

Afterwards I ran

sudo insmod v4l2loopback.ko.xz exclusive_caps=1

and got the following errormessage

insmod: ERROR: could not insert module v4l2loopback.ko.xz: Unknown symbol in module

looking into dmesg I always get the following errormessage after running that insmod command:

v4l2loopback: Unknown symbol v4l2_get_timestamp (err -2)

I tried multiple things before running this command: unloading the module, loading videodev (which kind of was loaded a priori because of intel, at least I couln't unload it with rmmod because it was in use), etc. Nothing seemed to work.

@umlaeute
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umlaeute commented Apr 1, 2019

hmpf. we recently (with #205 )switched to v4l2_get_timestamp which was apparently dropped right before we started using it.

ping @parr0tr1ver

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2 participants