[linux-dvb] DigitalNow TinyTwin second tuner support

Antti Palosaari crope at iki.fi
Sat Nov 22 20:21:15 CET 2008

Lindsay Mathieson wrote:
> Antti Palosaari wrote:
>> I disabled 2nd tuner by default due to bad performance I faced up with 
>> my hardware. Anyhow, you can enable it by module param, use modprobe 
>> dvb-usb-af9015 dual_mode=1 . Test it and please report.
> All this has inspired me to retry my DigitalNow TinyTwin. The results
> are good (excellent) and badish. I am available to do any testing and
> builds required. Thanks for all the hard work!

I made other test version of af9015 driver which uses different MXL500x 
tuner driver. I think it will perform a lot more better. Please test:

> I installed http://linuxtv.org/hg/~anttip/af9015 drivers and firmware,
> rebooted. As expected one tuner recognised (/dev/advb/adaptor0).
> The Good:
> A "scan au-Brisbane" picked up every local channel, quite surprising as
> I was just using the crappy little antenna that came with it. Better
> yet, MythTV displayed the video on the all the channels with excellent
> reception - signal strength > 60%, no artifacts. That's better than any
> of the other tuners I have trialled on this test PC with similar setups,
> but it is in line with the windows drivers. The TinyTwin just seems to
> get really good reception when driven correctly. Its worth it for the
> single tuner alone.
> The not so good :)
> I did a "modprobe dvb-usb-af9015 dual_mode=1" and got similar results to
> Rasjid - adapter1/frontend0 was not created and there were errors about
> copying the firmware. However on a reboot both frontends were there.
> Warm start maybe?
> The Bad:
> "scan au-Brisbane"  Wored ok, but a"scan -a 1 au-Brisbane" caused
> adapter0 to vanish and adapter1 never found anything. The following was
> in the dmesg log:


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