[mythtv-users] hdpvr.ko unknown symbol (compiling from linuxtv.org)

Michelle Dupuis mdupuis at ocg.ca
Mon Jul 2 15:43:28 UTC 2012

Nope - that didn't do it.

I see the warning during compile:
WARNING: "__video_register_device" [/usr/src/hdpvr-driver/media_build/v4l/hdpvr.ko] undefined!

which I suspect means the v4l2-dev.c is not being compiled.  As suggested in the wiki, I set all =m to =n other than the HDPVR, but I suspect that is no longer good advice.  Some other CONFIG option has to be set to m/y but it's beyond me to figure out which...

From: mythtv-users-bounces at mythtv.org [mythtv-users-bounces at mythtv.org] On Behalf Of Devin Heitmueller [dheitmueller at kernellabs.com]
Sent: Monday, July 02, 2012 11:36 AM
To: Myth TV Users List
Subject: Re: [mythtv-users] hdpvr.ko unknown symbol (compiling from     linuxtv.org)

On Mon, Jul 2, 2012 at 11:34 AM, Michelle Dupuis <mdupuis at ocg.ca> wrote:
> I tried compiling the latest hdpvr drivers from linuxtv.org (as per the
> mythtv wiki).  Although it compiles, loading the hdpvr module gives the
> error below (which corresponds with an error during make).  Is this a
> problem or can I ignore it?
> in the v4l/.config I set all modules to 'n' except the lirc_zilog and hdpvr
> modules which I want.  Is this related?  I see the unknown symbol
> __video_register_device defined in v4l2-dev.c but not sure why that's not
> being compiled/used.  I want to avoid a massive upgrade to my kernel
> modules, so I'm trying to compile as little as possible/needed.

Reboot your PC.  This happens when you have a combination of old and
new modules running.  Assuming you've done a "make install" in the
tree, you just need to reboot so that the running copies are all the
same version.


Devin J. Heitmueller - Kernel Labs
mythtv-users mailing list
mythtv-users at mythtv.org

More information about the mythtv-users mailing list