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

[Klaus Schmidinger]

On 05.04.2010 18:14, Teemu Rantanen wrote:
> Ok, so the sysfs names of vendor/product are driver-dependent... All my
> usb devices have idVendor/idProduct even though only one of them is "Reddo".

I'm not saying that what the FuSI driver does is correct, either ;-)
Somebody with more knowledge should clarify this and fix the driver
that is faulty.

> Tried to create the hook on Initialize(), still crashes on exit().

Well, then I guess you'll need to do some debugging to find out what
really goes wrong here.

> Haven't tried your patch, because as far as I know the driver claims it
> can do QAM256, and even if that was disabled today it would take some
> time to get into all linux distributions... Btw it even claims to
> support QAM256 on the product package, but it still doesn't work. I
> guess that's the reason they are so inexpensive here...

At any rate, these things *must* be fixed in the driver!
Even if it takes a while for a fix to get into the main kernel source.

Klaus

> 2010/4/5 Klaus Schmidinger <Klaus.Schmidinger at tvdr.de
> <mailto:Klaus.Schmidinger at tvdr.de>>
> 
>     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
>     0x0000
>     root at video:/home/kls/vdr/VDR > cat
>     /sys/class/dvb/dvb0.frontend0/device/subsystem_vendor
>     0x13c2
> 
>     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.
> 
>     Klaus
> 
> 
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