[vdr] Restricting a particular dvb card from tuning to channels with a selected modulation

Klaus Schmidinger Klaus.Schmidinger at tvdr.de
Mon Apr 5 16:35:24 CEST 2010

On 05.04.2010 12:43, Teemu Rantanen wrote:
> Hi,
> I tried also without delete cDeviceHook but it still crashed...

Please try creating the cReddoDeviceHook in cPluginDisableReddoQAM256::Initialize(),
as suggested in PLUGINS.html.

> Well, the fixes are basically available in the plugin, as I copied the
> probe method (and modified slightly to suit the plugin). Those are:
> - The sysfs filenames are idVendor (subsystem_vendor) and idProduct
> (subsystem_device)

This is what I get here:

root at video:/home/kls/vdr/VDR > ls -l /sys/class/dvb/dvb0.frontend0/device/subsystem_*
-r--r--r-- 1 root root 4096 2010-04-05 16:25 /sys/class/dvb/dvb0.frontend0/device/subsystem_device
-r--r--r-- 1 root root 4096 2010-04-05 16:25 /sys/class/dvb/dvb0.frontend0/device/subsystem_vendor

root at video:/home/kls/vdr/VDR > ls -l /sys/class/dvb/dvb0.frontend0/device/id*
ls: cannot access /sys/class/dvb/dvb0.frontend0/device/id*: No such file or directory

Maybe a bug in the driver?

> - You need to set strtoul() base as 16 as the files don't have 0x in
> front of the hex

root at video:/home/kls/vdr/VDR > cat /sys/class/dvb/dvb0.frontend0/device/subsystem_device
root at video:/home/kls/vdr/VDR > cat /sys/class/dvb/dvb0.frontend0/device/subsystem_vendor

Maybe the "reddo" driver behaves differently than the FuSi driver?

> What about making this an utility method in VDR? Give device file name
> and return id...

Will do.

Have you tried whether it works with my patch?
In that case you wouldn't even need the whole plugin.


> 2010/4/5 Klaus Schmidinger <Klaus.Schmidinger at tvdr.de
> <mailto:Klaus.Schmidinger at tvdr.de>>
>     From PLUGINS.html:
>      A plugin that creates a derived cDeviceHook ...
>      shall not delete this object. It will be automatically deleted when the
>      program ends
>     I have added a similar note to device.h now.
>     > ...
>     > - The sysfs probe code in full feature card plugin is buggy :-)
>     Would you mind posting a patch that fixes this?
>     Klaus

More information about the vdr mailing list