Re: Afatech AF9013

From: Josu Lazkano <josu.lazkano@gmail.com>
To: Jose Alberto Reguero <jareguero@telefonica.net>
Cc: linux-media@vger.kernel.org, linux-dvb@linuxtv.org
Subject: Re: Afatech AF9013
Date: Tue, 16 Aug 2011 00:22:05 +0200	[thread overview]
Message-ID: <CAL9G6WWaUkD3AHhNKNOR65Mokm2qd9bwbKSpfYTzbOK-83zafA@mail.gmail.com> (raw)
In-Reply-To: <201108160007.01022.jareguero@telefonica.net>

2011/8/16 Jose Alberto Reguero <jareguero@telefonica.net>:
> I have problems with a dual usb tuner. I limit the bandwith using pid filters
> and the problem was gone.
>
> Jose alberto
>
> On Lunes, 15 de Agosto de 2011 15:34:20 Josu Lazkano escribió:
>> Hello, I have a problem with the KWorld USB Dual DVB-T TV Stick (DVB-T
>> 399U):
>> http://www.linuxtv.org/wiki/index.php/KWorld_USB_Dual_DVB-T_TV_Stick_(DVB-
>> T_399U)
>>
>> I am using it on MythTV with Debian Squeeze (2.6.32). It is a dual
>> device, sometimes the second adapter works great, but sometimes has a
>> pixeled images. The first adapter always has pixeled images, I don't
>> know how to describe the pixeled images, so here is a mobile record:
>> http://dl.dropbox.com/u/1541853/kworld.3gp
>>
>> I have this firmware:
>> http://palosaari.fi/linux/v4l-dvb/firmware/af9015/5.1.0.0/dvb-usb-af9015.fw
>>
>> I read on the linuxtv wiki and there are some problems with dual mode,
>> there is some links for how to patch the similar driver (Afatech/ITE
>> IT9135), but I am not good enough to understand the code.
>>
>> I check the kernel messages:
>>
>> Aug 15 13:53:58 htpc kernel: [ 516.285369] af9013: I2C read failed
>> reg:d2e6 Aug 15 13:54:29 htpc kernel: [  547.407504] af9013: I2C read
>> failed reg:d330 Aug 15 13:54:44 htpc kernel: [  561.902710] af9013: I2C
>> read failed reg:d2e6
>>
>> It looks I2C problem, but I don't know how to debug it deeper.
>>
>> I don't know if this is important, but I compile the s2-liplianin for
>> other devices this way:
>>
>> apt-get install linux-headers-`uname -r` build-essential
>> mkdir /usr/local/src/dvb
>> cd /usr/local/src/dvb
>> wget http://mercurial.intuxication.org/hg/s2-liplianin/archive/tip.zip
>> unzip s2-liplianin-0b7d3cc65161.zip
>> cd s2-liplianin-0b7d3cc65161
>> make CONFIG_DVB_FIREDTV:=n
>> make install
>>
>> Can you help with this? This hardware is a very cheap and works well
>> for HD channels but, I don't know why sometimes has pixeled images.
>>
>> Thanks for your help, best regards.
>

Thanks Jose Alberto, I search on google for pid filters but I don't
find any interesting info.

How can I limit bandwidth on dvb?

Thanks for your help, I have two dual devices waiting for this fix on my HTPC.

Best regards.

-- 
Josu Lazkano