[pvrusb2] HVR 1900: How do I use analogue only (avoid using it for DVB) ?
mkrufky at linuxtv.org
Wed Jul 8 10:17:44 CDT 2009
On Wed, Jul 8, 2009 at 10:48 AM, Martin
Dauskardt<martin.dauskardt at gmx.de> wrote:
> I don't have this box yet, but I am still wondering:
> When I use it with vdr and its plugin pvrinput, vdr will first open the dvb
> devices (/dev/dvb/adapterX). When initialzing the plugins, pvrinput will try
> to open /dev/videoX. As far as I know this won't work because we cannot use
> DVB-T and analogue the same time.
> There is no way to force vdr to ignore the pvrusb2 DVB device. It is a DVB
> application, and it will always open all found DVB devices.
> Am I right that the pvrusb2.ko module handles both analogue and DVB? So there
> is no way to blacklist a dvb module.
> Disabling "pvrusb2 ATSC/DVB support" in the kernel config works according to a
> user report. But this would mean that every pvrinput user needs to rebuild
> the kernel or modules. I hope there is an easier way.
> Maybe it is possible to add new module options?
> for example
> parm: disable_video:1=do not use analogue video (int)
> parm: disable_dvb:1=do not use DVB (int)
> Or did I miss something?
> Mike, by the way: I think you can delete this option:
> parm: vbi_nr:Offset for device's vbi dev minor (array of int)
> as long as VBI is not supported.
That would be an issue with the application -- not the driver.
This is *not* the first supported hybrid analog / digital device to
appear and be supported under linux. There are many other devices
that allow analog and digital video reception, while only allowing one
at a time.
The application needs to treat the analog and digital interfaces as
two sides to a single device.
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