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[linux-dvb] Re: Problems with multiple tda1004x based NOVA-T cards



OK, I think I have found the problem, well at least located it:-

In dvb_frontend.c there is a function "dvb_bend_frequency" which
apparently stops two cards from interfering with each other when they
are tuned to the same frequency. I commented out the function and now
both cards work fine.

Anyone got any thoughts?

Damian

On Thu, 2003-07-24 at 01:04, Damian Ivereigh wrote:
> I am using a re-badged Technotrends NOVA-T card with pretty much the
> latest tda1004x based drivers and with one card everything worked
> absolutely great.
> 
> However I stuck a second card in and whichever card I go to use second
> does not seem to startup properly and timesout. I can even unload the
> modules, reload them and then startup dvbstream on card 1, then card 0
> won't work and vice-versa.
> 
> When it fails I get an output from dvbstream that looks like:-
> 
> dvbstream v0.4pre3 - (C) Dave Chapman 2001
> Released under the GPL.
> Latest version available from http://www.linuxstb.org/
> Using DVB card "Philips TDA10045H"
> tuning DVB-T (in Australia) to 226500000 Hz
> polling....
> Getting frontend event
> FE_STATUS: FE_TIMEDOUT
> Not able to lock to the signal on the given frequency
> 
> I have put the tda1004x module into debug mode and can send up reams of
> output if it helps any. Without the debug I get this sent to the
> kernel:-
> 
> Linux video capture interface: v1.00
> DVB: registering new adapter (TT-Budget/WinTV-NOVA-T  PCI).
> PCI: Found IRQ 11 for device 02:0a.0
> tda1004x: Detected Philips TDA10045H.
> tda1004x: Detected Philips TDM1316L tuner.
> DVB: registering frontend 0:0 (Philips TDA10045H)...
> DVB: registering new adapter (TT-Budget/WinTV-NOVA-T  PCI).
> PCI: Found IRQ 10 for device 02:0c.0
> PCI: Sharing IRQ 10 with 00:1f.3
> PCI: Sharing IRQ 10 with 02:0e.0
> PCI: Sharing IRQ 10 with 02:0e.1
> tda1004x: Detected Philips TDA10045H.
> tda1004x: Detected Philips TDM1316L tuner.
> DVB: registering frontend 1:0 (Philips TDA10045H)...
> 
> So they are both detected OK. Anyone got any ideas or will I start
> ploughing through the code?
> 
> Damian 
-- 
Damian Ivereigh
CEPS Team Lead
Desk: +61 2 8446 6344
Mob: +61 418 217 582

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