Hello,
I found this
guide:https://www.onetransistor.eu/2017/05/magix-usb-videowandler-2-linux.html
which explains how to get Magix Videowandler 2 as an audio-video
source. It is achieved by downloading drivers from LinuxTV project,
slightly modifying them and installing. I wanted to incorporate changes
from the guide to the upstream code, but first I wanted to test
everything once again. I tried to follow the described method of
compiling drivers (before making any changes) and I got stuck with a
following output:
CC [M] /tmp/media_build/v4l/videobuf-core.o
CC [M] /tmp/media_build/v4l/videobuf-dma-sg.o
/tmp/media_build/v4l/videobuf-dma-sg.c: In function
'videobuf_dma_init_user_locked':
/tmp/media_build/v4l/videobuf-dma-sg.c:190:17: error: 'FOLL_LONGTERM'
undeclared (first use in this function); did you mean 'FOLL_FORCE'?
flags | FOLL_LONGTERM, dma->pages, NULL);
^~~~~~~~~~~~~
FOLL_FORCE
/tmp/media_build/v4l/videobuf-dma-sg.c:190:17: note: each undeclared
identifier is reported only once for each function it appears in
What could have caused it? I suppose that the code already in the
repository has been checked and such thing should not happen if not by
my mistake, but I did not change anything after cloning git repo.
Regards
Dominik Danelski
