[dvblast-devel] dvblast querying frontends and TBS6281 card

Panagiotis Malakoudis malakudi at gmail.com
Thu Oct 8 13:53:29 CEST 2015


The problem is that TBS drivers (which you compile manually) use
DVBAPI 5.03 . However, when you compile dvblast, it uses DVBAPI
version of your kernel, which is 5.10
I have requested several times from TBS to rebase their drivers in
order to support DVBAPI 5.10 but they never responded back. An easy
fix is to patch config.h of dvblast.
change
#define DVBAPI_VERSION ((DVB_API_VERSION)*100+(DVB_API_VERSION_MINOR))
to
#define DVBAPI_VERSION 503

Then, produced binary will be for DVBAPI 5.03

It is an ugly hack, until TBS decides to fix their drivers. Since they
claim Linux 4.X support, they should also support DVBAPI 5.10


2015-10-08 14:47 GMT+03:00 Kompan Kolia <kompan at yandex.ru>:
> We have the same problem.
>
>
> I have been installed fresh dvblast-3.0, lib-ev.
>
> But:
> # dvblast -f 12093000 -s 27000000 -v 13 -a 3
> DVBlast 3.0 (release)
> warning: restarting
> debug: compiled with DVB API version 5.10
> error: unable to query frontend
>
> # uname -a
> Linux SatTV-8 3.16.0-4-686-pae #1 SMP Debian 3.16.7-ckt11-1+deb8u3 (2015-08-04) i686 GNU/Linux
>
> If I install dvblast 2.2 with the same TBS drivers, dvblast works well.
>
> 09.01.2015, 14:18, "Georgi Chorbadzhiyski" <gf at unixsol.org>:
>> On 01/09/2015 01:03 PM, Dan Lita wrote:
>>>  On 1/9/2015 12:30 PM, Georgi Chorbadzhiyski wrote:
>>>>  On 01/09/2015 11:32 AM, Dan Lita wrote:
>>>>>  [root at localhost ~]# dvblast -a 0 -n 0 -c ./config/770.cfg -f 770000000
>>>>  "-f 770000000", are you sure this is a valid frequency. Looks wrong.
>>>  Frequency is in Hz. So I suppose it is correct: 770MHz.
>>>  My problem is that dvblast cannot query frontends on TBS 6281.
>>
>> TBS cards have binary drivers so unfortunately they are always suspect.
>>
>> Can you provide an strace of dvblast with working driver and with non
>> working driver so we can see what ioctl fails.
>>
>> --
>> Georgi Chorbadzhiyski | http://georgi.unixsol.org/ | http://github.com/gfto/
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