[linux-dvb] Close tzap and cannot lock frequency anymore?

Manu Abraham abraham.manu at gmail.com
Mon Oct 16 20:14:46 CEST 2006

Chun Chung Lo wrote:
> Hi all,
> I wonder during I am capturing TS stream by using a DVB-T card (Compro
> Videomate T300) in a Linux PC (2.6.16-18), I followed the instructions
> shown in linuxtv-dvb-apps and run tzap and capture TS.
> Because I think all the parameters are written into the hardware of the
> tuner, and the tzap also shown FE_HAS_LOCKED, so I think I have no need
> to keep polling the tuner and I switched off tzap.
> But when I switched off tzap, I found that my TS capturing is stoped! (I
> found that some TS data is missing in the captured TS file.) But when I
> keep tzap running, no such problem occur.

When you stop *zap, the default behavior of dvb-core is to switch off
the frontend after a predefined period of time, to save power. So what
you are seeing is the default behavior. If you want to turn OFF this
behavior, you can use the module parameter dvb_shutdown_timeout=0 to
dvb_core, such that this feature is disabled.


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