[linux-dvb] need to hold fronend device open
Nicola.Sabbi at poste.it
Tue Dec 4 09:30:53 CET 2007
Il Tuesday 04 December 2007 08:10:26 Iilluzion Shadow ha scritto:
> Hi there!
> I appreciated for good staff you develop.
> The question is:
> is it a bug or feature that to be able to have dvbnet device
> operational to be able to get traffic i need to have frontend
> device to be held open by a user process?
> dvb card: TT-budget S-1401
> budget module from kernel 2.6.22
> OK. some examples.
> successful example 1
> 1. szap -n 1 - successfully locks a signal and continually
> monitors signal strength
> 1.2 meanwhile [kdvb-fe-0] is being hold open
> 2. dvbnet - successfully makes a dvb0_0 device
> 3. ifconfig - successfully initializes dvb device
> 4. tcpdump - gives traffic
> unsuccessful example 2
> 1. szap -n 1 -x - lock a signal and stops
> 2,3. dvbnet and ifconfig - make dvb0_0
> 4. tcpdump - shows NO traffic
> reason: [kdvb-fe-0] is not being hold open
> workaround: keep szap going placing it into background with &.
> szap -n 1 > /dev/null 2>&1 &
> so it seems i have to keep [kdvb-fe-0] making szap running
if you want to keep the frontend open load dvb_core with the parameter
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