Re: [PATCH 07/16] ngene: CXD2099AR Common Interface driver

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On Monday 10 January 2011 15:05:34 Andreas Oberritter wrote:
> On 01/10/2011 10:36 AM, Oliver Endriss wrote:
> > From: Ralph Metzler <rjkm@xxxxxxxxxxxxxx>
> > 
> > Driver for the Common Interface Controller CXD2099AR.
> > Supports the CI of the cineS2 DVB-S2.
> > 
> > For now, data is passed through '/dev/dvb/adapterX/sec0':
> > - Encrypted data must be written to 'sec0'.
> > - Decrypted data can be read from 'sec0'.
> > - Setup the CAM using device 'ca0'.
> 
> Nack. In DVB API terms, "sec" stands for satellite equipment control,
> and if I remember correctly, sec0 already existed in the first versions
> of the API and that's why its leftovers can be abused by this driver.
> 
> The interfaces for writing data are dvr0 and demux0. If they don't fit
> for decryption of recorded data, then they should be extended.
> 
> For decryption of live data, no new user interface needs to be created.

There was an attempt to find a solution for the problem in thread
http://www.mail-archive.com/linux-media@xxxxxxxxxxxxxxx/msg22196.html

As that discussion did not come to a final solution, and the driver is
still experimental, I left the original patch 'as is'.

CU
Oliver

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