On Saturday 15 March 2003 17:14, Simeon Walker wrote:
Hi, recently I have tried out the dvb-kernel drivers from cvs as of 12-03-2003. I am using kernel 2.4.20 (with devfs) and a Nova-T 'budget' PCI card (grundig_29504-401 frontend).
The first time the modules are loaded after a reboot everyhing works fine. If I unload the modules and load them again (using the insmod.sh script) then everything appears to load but no /dev/dvb/adapter0/frontend0 device is created (the others are).
Is this a known problem?
Yeah, the frontend becomes powered down during the unload/reload. The current detection code does not detect the frontend once this has occurred.
I did submit a patch for this a few months back, but unfortunately, nothing has happened with it, perhaps because the code necessary to re-detect it when it is powered down is quite nasty.
Your patch does basically the right thing, but I'd like some code that's a bit easier to read. Unfortunally I did not had the time yet to clean this up.
A neater solution would just be to disable the code which powers the frontend down.
Hmm, DVB-T demodulators are usually pretty power hungry, your frontend will live longer when you power it down in case you don't need it...
Holger
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