Terratec Cinergy Piranha tuning (again)

Hello,

my DVB-T Stick, that formerly worked fine under previous kernel versions now does not tune to any channel unter 2.6.32+. The old repositories siano-dev and sms1xxx won´t compile without manual changes to the code.

Symptoms: Stick gets recognized, firmware gets loaded, frontend gets loaded. While tuning, signal an snr levels are always 0 (zero) with actual modules from mainstream kernels. I already tried to look at the source, but this specific model seems to run with basic initialisation, while Hauppauge sticks and others have a specific initialization array. I don't have any specification datasheets.

Do you have any idea, where to look for the bug? Could it be a misinitialization of the stick's tuner?

Thanks in advance

Regards
Erich

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Sorry for the delay, but I've been trying to recover from a USB system disk that's finally become uselessly corrupted.

Thanks for pointing this out -- I can verify that I see a similar problem with a particular 2.6.34-rc2 that I've just built to try and get other things working again.

I see something a bit different --

[62890.938154] usb 4-2.1: firmware: requesting dvbt_bda_stellar_usb.inp
[62894.338892] usbcore: registered new interface driver smsusb
[62894.467939] usb 4-2.1: USB disconnect, address 4
[62896.753324] usb 4-2.1: New USB device found, idVendor=187f, idProduct=0100

That is, no frontend gets loaded for me. So, no tuning. The other two devices attached at the moment both work properly.

I'll try to build the very latest -git kernel on this machine and if nothing's horribly broken, see if there's any change, as well as see if I can figure out what's gone wrong. Not as Real Soon Now[tm] as it should be, but slow machine and slow me.

Plus I'll have to see what changes I need to get the DAB support from Siano working properly, as I hadn't done that yet with the 2.6.34-rc2 kernel.

thanks,
barry bouwsma

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Yes, that problem sounds familiar - see my comment on this below, please.

I can't help in that case, since, up to my knowlegde, in favour to dvb-t radio there is no dab-radio in Austria.

Comment on the frontend loading issue:

This is my dmesg...

[30256.700149] usb 6-1: new full speed USB device using uhci_hcd and address 2
[30256.861399] usb 6-1: configuration #1 chosen from 1 choice
[30257.339156] smsusb_probe: line: 422: rom interface 0 is not used
[30257.342174] usb 6-1: firmware: requesting dvbt_bda_stellar_usb.inp
[30257.483485] usbcore: registered new interface driver smsusb
[30257.540221] usb 6-1: USB disconnect, address 2
[30260.050077] usb 6-1: new full speed USB device using uhci_hcd and address 3
[30260.224132] usb 6-1: configuration #1 chosen from 1 choice
[30260.233362] DVB: registering new adapter (Siano Stellar Digital Receiver)
[30260.233828] DVB: registering adapter 0 frontend 0 (Siano Mobile Digital MDTV Receiver)...

Of course I am using the original ".inp"-Microcode, which I previously copied to /lib/firmware/uname -r/dvbt_bda_stellar_usb.inp

Since the autoload of the interface seems to have been forgotten within the source code itself, I created /etc/modprobe.d/siano.conf with the following line:

install smsusb /sbin/modprobe --ignore-install smsusb && /sbin/modprobe --ignore-install smsdvb

I hope this is the right way to do it and does not cause other problems.

I once repeat: the dvb-device is accessible, but the signal and snr levels stay at "0" permanently.
I remember, that a similar problem occurred in the siano-dev branch before. Mkrufky had a patch addressing this issue in former versions (adapted for 2.6.8-to 2.6.18), but it eventually did not find it's way into the repository.

Unfortunately, I do not possess a copy of the ancient patch file any longer.

Thanks for your reply and
best regards

Erich

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Moin moin,

This is also the case with the latest (at the time I built it a few days ago) 2.6.35-rc3 kernel.

It is true that the ORF tests of DAB radio from Wien and Innsbruck were discontinued -- a shame in my opinion, as part of the services they offered were in better quality or at least comparable to what I receive by satellite in .mp2 audio.

However I have some DAB/DAB+ ensembles nearby that I can receive so my attempts to get that working should present no problem.

I will try to see what I can get working -- the 2.6.35-rc3 kernel that I built has some serious networking issues (retries apparently don't happen) and is useless for on-line use, as I want the Siano device to be useful to me.

thanks,
barry bouwsma

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