[linux-dvb] Re: [PATCH] Make grundig_29504-401 tuner work onmodule re-insertion

[Jon Burgess <mplayer@jburgess.uklinux.net>]

Holger Waechtler wrote:
> Hi Jon,
> that's illegal -- it would overwrite an attached EEPROM if we write 
> registers before we're sure that it's really a L64781. I just realized 
OK, in understand. The trouble with this test is that the L64781 will 
reponds after it is initialised. In fact the test a couple of lines 
further down makes sure this is the case.

To fix this, there needs to be some magic code added to the _detach() 
function to really turn off the device, so it doesn't respond during the 
check on re-insertion.

> that the grundig_29504-401 drivers in DVB/ and dvb-kernel are not 
> synchronized, I'll fix that. Can you please update your CVS and then 
> take the new grundig_29504-401.c as reference?
OK, i'll do that.

When I powered up my PC with my patch applied I found that VDR doesn't 
initially receive anything. It works fine if the VDR is restarted, so 
i'm at a bit of a loss to know exactly why it doesn't work.

The original patch from Andrew de Quincy works fine, but it still 
removes the same check as my patch.

	Jon



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