Hello and question about firmwares

Hello and question about firmwares

[✎Ʀafael Vieira♦]

Hy there,
My name is Rafael Vieira. Sorry, if I say something stupid, but let me
share with you my point of view, and you can correct me at anytime.
I have a USB PixelView SBTVD Hybrid device and it seems to me that the
only thing that keeps it from working is its firmware. Since there is
a younger brother from this board
http://dougsland.livejournal.com/103169.html that works already. I
found a rom(merlinD.rom that I can send it to the list, if you want),
from the CD of the device, that I suspect is its firmware.
Yes, I've heard of usbsnoop, but my question is, if I have the
firmware(If I'm right), can't I just rename it? Or do some operation
directly on the firmware? Do I really need to use usbsnoop? (I didn't
wan't to install windows to do this, honestly)


Thanks,

Rafael Vieira - programmer and student.

Re: Hello and question about firmwares

[✎Ʀafael Vieira♦]

I realize now that I was kind of fast foward :) So nice to meet you all.
I hope someday, I'm able to help you guys.
Let me give you some more data from the device, although is not
directly related to my questions.

The two devices:

http://www.pixelview.com.br/play_tv_usb_sbtvd_fullseg.asp (works already)

http://www.pixelview.com.br/playtv_usb_hybrid.asp (I'm trying to get it to work)


The two boards even seems to be the same(lsusb output is the same from the two):

(from #lsusb)
Bus 001 Device 005: ID 1554:5010 Prolink Microsystems Corp.

(from dmesg)
[10994.296447] dvb-usb: found a 'Prolink Pixelview SBTVD' in cold
state, will try to load a firmware
[10994.296461] usb 1-3: firmware: requesting dvb-usb-dib0700-1.20.fw
[10994.354616] dvb-usb: downloading firmware from file 'dvb-usb-dib0700-1.20.fw'
[10994.354639] dib0700: firmware download failed at 7 with -22

So, the problem to me seems to be only the firmware.
I've upload the file (merlinD.rom) to here.

http://www.2shared.com/file/URb2IeUi/merlinD.html

If anyone care to take a look.

Best wishes and many thanks for any help,

Rafael Vieira - programmer and student.

Re: Hello and question about firmwares

[Mauro Carvalho Chehab]

Hi Rafael,

Em 16-09-2010 13:56, ✎Ʀafael Vieira♦ escreveu:
> I realize now that I was kind of fast foward :) So nice to meet you all.
> I hope someday, I'm able to help you guys.
> Let me give you some more data from the device, although is not
> directly related to my questions.
> 
> The two devices:
> 
> http://www.pixelview.com.br/play_tv_usb_sbtvd_fullseg.asp (works already)
> 
> http://www.pixelview.com.br/playtv_usb_hybrid.asp (I'm trying to get it to work)

They are completely independent devices. One uses dib0700, while the other uses cx23102,
plus a Fujitsu frontend. The second one is not supported. I wrote a patch to fix the
auto-detection issues between them a few days ago on my -git tree. Eventually, analog
support for s-video/composite will work, but analog or digital TV won't work. I need
to get one of those in order to fix the analog TV. For digital, it is more complicated,
as we don't have any info about the Fujitsu chip yet.

Abraços,
Mauro.

Re: Hello and question about firmwares

[✎Ʀafael Vieira♦]

Hello Mauro,

Thanks for your help.
Found your patch:

http://permalink.gmane.org/gmane.linux.drivers.video-input-infrastructure/22814

You're right, a more careful research returned
--------------------------
   - Product: PixelView PlayTV USB Hybrid

   - Part Number: PV-B308U(FRTN)-F

   - TDA18271 (NXP Hybrid Tuner), 86A20S (Fujitsu ISDB-T demodulator),
   CX23102 (CNXT AV Decoder - 10bit), USB Bridge
--------------------------
   - Product: PixelView PlayTV USB SBTVD Full-Seg

   - Part Number: PV-D231U(RN)-F

   - Chipset: DIB8076
--------------------------
Even if they share the same ID(from lsusb), chipsets are different.
This is really troublesome :(
But, the driver for CX23102 does exist in kernel.....So, I was
thinking....Is there a way to force kernel to recognize the device
PixelView PlayTV USB Hybrid as anyother who uses the same chipset,
like Conexant Hybrid TV - RDE250?

http://lxr.free-electrons.com/source/drivers/media/video/cx231xx/cx231xx-cards.c
http://www.datasheetarchive.com/Indexer/Datasheet-064/DSA00206835.html

Shouldn't it work? At least as a regular tv(analog)....this way the
money I spent wouldn't be for nothing.

I don't know if this helps but I found this too(for fujitsu chipset,
his full name seems to be MB86A20S):

http://www.fujitsu.com/downloads/MICRO/fme/documentation/M17_MB86A20S_OFDM_Demodulator.pdf

Do you think it's possible?
Thank you again for your help and patch :)

Rafael Vieira

2010/9/16 Mauro Carvalho Chehab <mchehab@redhat.com>:
> Hi Rafael,
>
> Em 16-09-2010 13:56, ✎Ʀafael Vieira♦ escreveu:
>> I realize now that I was kind of fast foward :) So nice to meet you all.
>> I hope someday, I'm able to help you guys.
>> Let me give you some more data from the device, although is not
>> directly related to my questions.
>>
>> The two devices:
>>
>> http://www.pixelview.com.br/play_tv_usb_sbtvd_fullseg.asp (works already)
>>
>> http://www.pixelview.com.br/playtv_usb_hybrid.asp (I'm trying to get it to work)
>
> They are completely independent devices. One uses dib0700, while the other uses cx23102,
> plus a Fujitsu frontend. The second one is not supported. I wrote a patch to fix the
> auto-detection issues between them a few days ago on my -git tree. Eventually, analog
> support for s-video/composite will work, but analog or digital TV won't work. I need
> to get one of those in order to fix the analog TV. For digital, it is more complicated,
> as we don't have any info about the Fujitsu chip yet.
>
> Abraços,
> Mauro.
>



-- 
Rafael Siqueira Telles Vieira
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