On 01/24/2012 04:49 PM, Devin Heitmueller wrote:
On Tue, Jan 24, 2012 at 6:48 AM, Antti Palosaari<crope@xxxxxx> wrote:
On 01/24/2012 06:41 AM, Hawes, Mark wrote:
Hi,
I have a HVR 4000 hybrid card which provides both DVB-S2 and DVB-T
capabilities on the one adapter. Using the current media tree build updated
with the contents of the linux media drivers tarball dated 22/01/2012 the
drivers for this card are still generating two frontends on the adapter as
below:
Jan 23 12:16:44 Nutrigrain kernel: [ 9.346240] DVB: registering
adapter 1 frontend 0 (Conexant CX24116/CX24118)...
Jan 23 12:16:44 Nutrigrain kernel: [ 9.349110] DVB: registering
adapter 1 frontend 1 (Conexant CX22702 DVB-T)...
I understand that this behaviour is now deprecated and that the correct
behaviour should be to generate one front end with multiple capabilities.
Can this please be corrected.
Same applies for many other devices too. For example some older Anysee E7
models have two chip and two frontends whilst new one have only one. Also
TechnoTrend CT3650 and Hauppauge WinTV.
Maybe it those are implemented later as one frontend, it not clear for me.
The merging of frontends is something that is only done if there are
multiple modulation types on the same demodulator chip. As the
HVR-4000 has separate demods for DVB-T versus DVB-S2, they will always
be represented by two separate frontends (for the foreseeable future).
In other words, the recent work doesn't apply to this card (and others like it).
So what was the actual benefit then just introduce one way more to
implement same thing. As I sometime understood from Manu's talk there
will not be difference if my device is based of DVB-T + DVB-C demod
combination or just single chip that does same. Now there is devices
that have same characteristics but different interface.
regards
Antti
--
http://palosaari.fi/
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