* Re: Re: Siano SMS1140 DVB Receiver on Debian 5.0 (Lenny)
@ 2011-02-21 19:44 Jamenson Ferreira Espindula de Almeida Melo
0 siblings, 0 replies; 3+ messages in thread
From: Jamenson Ferreira Espindula de Almeida Melo @ 2011-02-21 19:44 UTC (permalink / raw
To: linux-media
Hi, Mauro! Thank you for your replying.
I have had some success. I just reconfigured the kernel 2.6.37 and recompiled it. I figured out two things. First: when I compiled the Siano driver as a module, smsmdtv.ko is loaded when I attach the receiver but no adapter directory, no dvr, no demux and no frontend are created in /dev directory. Second: I compiled the Siano driver into the kernel and bingo: when I attach the receiver, frontend0, dvr0 and demux0 are created in /dev/dvb/adapter0 directory. No problem. Real problem is: scan, w_scan and dvbtune doesn't find any signal to scan, say "tunning failed". I figured out that receiver default mode is setup to DVB-T (mode 4 in smscoreapi.c) and because of that dvb_nova_12mhz_b0.inp is required. Setting default mode to 6 in smscoreapi.c makes isdbt_nova_12mhz_b0.inp be required instead and it does make me sense to be the correct driver considering ISDB-T standard in Brazil. Reading Siano's documentation I realized that ISDB-T standard only runs with SMS Host Libra
ry, that is a proprietary subsystem of Siano Mobile Silicon and, actually, I am thinking receiver will only run if I use such a library.
Any more help?
Best regards.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Re: Siano SMS1140 DVB Receiver on Debian 5.0 (Lenny)
@ 2011-02-21 19:51 Jamenson Ferreira Espindula de Almeida Melo
2011-02-22 0:23 ` Mauro Carvalho Chehab
0 siblings, 1 reply; 3+ messages in thread
From: Jamenson Ferreira Espindula de Almeida Melo @ 2011-02-21 19:51 UTC (permalink / raw
To: linux-media
Hi, Mauro! Thank you for your replying.
I have had some success. I just reconfigured the kernel 2.6.37 and recompiled it. I figured out two things. First: when I compiled the Siano driver as a module, smsmdtv.ko is loaded when I attach the receiver but no adapter directory, no dvr, no demux and no frontend are created in /dev directory. Second: I compiled the Siano driver into the kernel and bingo: when I attach the receiver, frontend0, dvr0 and demux0 are created in /dev/dvb/adapter0 directory. No problem. Real problem is: scan, w_scan and dvbtune doesn't find any signal to scan, say "tunning failed". I figured out that receiver default mode is setup to DVB-T (mode 4 in smscoreapi.c) and because of that dvb_nova_12mhz_b0.inp is required. Setting default mode to 6 in smscoreapi.c makes isdbt_nova_12mhz_b0.inp be required instead and it does make me sense to be the correct driver considering ISDB-T standard in Brazil. Reading Siano's documentation I realized that ISDB-T standard only runs with SMS Host Library, that is a proprietary subsystem of Siano Mobile Silicon and, actually, I am thinking receiver will only run if I use such a library.
Any more help?
Best regards.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Siano SMS1140 DVB Receiver on Debian 5.0 (Lenny)
2011-02-21 19:51 Re: Siano SMS1140 DVB Receiver on Debian 5.0 (Lenny) Jamenson Ferreira Espindula de Almeida Melo
@ 2011-02-22 0:23 ` Mauro Carvalho Chehab
0 siblings, 0 replies; 3+ messages in thread
From: Mauro Carvalho Chehab @ 2011-02-22 0:23 UTC (permalink / raw
To: Jamenson Ferreira Espindula de Almeida Melo; +Cc: linux-media
Hi Jamenson,
Em 21-02-2011 16:51, Jamenson Ferreira Espindula de Almeida Melo escreveu:
>
> Hi, Mauro! Thank you for your replying.
>
> I have had some success. I just reconfigured the kernel 2.6.37 and recompiled it. I figured out two things.
> First: when I compiled the Siano driver as a module, smsmdtv.ko is loaded when I attach the receiver but no adapter directory,
> no dvr, no demux and no frontend are created in /dev directory. Second: I compiled the Siano driver into the kernel and bingo:
> when I attach the receiver, frontend0, dvr0 and demux0 are created in /dev/dvb/adapter0 directory. No problem. Real problem is:
> scan, w_scan and dvbtune doesn't find any signal to scan, say "tunning failed". I figured out that receiver default mode is
> setup to DVB-T (mode 4 in smscoreapi.c) and because of that dvb_nova_12mhz_b0.inp is required. Setting default mode to 6 in
> smscoreapi.c makes isdbt_nova_12mhz_b0.inp be required instead and it does make me sense to be the correct driver considering ISDB-T
> standard in Brazil. Reading Siano's documentation I realized that ISDB-T standard only runs with SMS Host Library, that is a
> proprietary subsystem of Siano Mobile Silicon and, actually, I am thinking receiver will only run if I use such a library.
>
> Any more help?
Yes, you need to force it to mode 6, if you want to use it with ISDB-T.
It works fine with ISDB-T, provided that you use a good antenna. Here, I need
to use a "Sagna Baby" antenna, that gives me an additional gain of
18 dB, and put it on my window. Notice that sms1140 only works with 1seg/3seg.
Abraços,
Mauro
^ permalink raw reply [flat|nested] 3+ messages in thread
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2011-02-21 19:51 Re: Siano SMS1140 DVB Receiver on Debian 5.0 (Lenny) Jamenson Ferreira Espindula de Almeida Melo
2011-02-22 0:23 ` Mauro Carvalho Chehab
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2011-02-21 19:44 Jamenson Ferreira Espindula de Almeida Melo
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