From: Antti Palosaari <crope@iki.fi>
To: Fisher Grubb <fisher.grubb@gmail.com>
Cc: linux-media@vger.kernel.org
Subject: Re: ATI theatre 750 HD tuner USB stick
Date: Wed, 04 Jul 2012 17:33:28 +0300 [thread overview]
Message-ID: <4FF45438.4030809@iki.fi> (raw)
In-Reply-To: <CAD4Xxq8CpCMtNP=sPSMhsWs4K1qULXWBtGzbu1ENqs1pgBBs3Q@mail.gmail.com>
On 07/04/2012 04:27 PM, Fisher Grubb wrote:
> Of course I wouldn't be surprised if people will have to reverse
> engineer it from the windows drivers but I thought I would mention it.
> I could not find any info on this 750 HD on www.linuxtv.org regarding
> where it stands. What help is needed for it?
>> Chips:
>> ATI:
>> T507
>> 0930
>> MADE IN TAIWAN
>> P0U493.00
>> 215-0692014
T507 driver is the missing piece. I suspect that SoC integrates many
chips, USB-bridge (with IR etc.), DVB-T demodulator and analog decoder.
Getting it work as DVB-T device is not mission impossible even without a
specs. Reverse-engineering is fun ;-)
Generally speaking DVB-bridge is very simple, no problems at all to
reverse. DVB demodulator is little bit harder but still possible without
loosing even sensitivity. What you lose is configuration options like
how IF frequency, SNR, BER is calculated. Tuners are most tricky as
there is all kind of calibration routines etc. but in that case tuner
driver exists.
>> NXP:
>> TDA18271HDC2
>> P3KN4 02
>> PG09361
That TDA18271 driver already exists - even two different drivers.
regards
Antti
--
http://palosaari.fi/
next prev parent reply other threads:[~2012-07-04 14:33 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAD4Xxq_s4zbRKBrjcQAfn4v5Dp0sytU=8_=XUViice98aQFysQ@mail.gmail.com>
[not found] ` <CAD4Xxq9LXGXQKRiNsU_tE8LcyJY64Wk5H4OFzEyhhXtsJJy3dw@mail.gmail.com>
2012-07-04 13:21 ` ATI theatre 750 HD tuner USB stick Fisher Grubb
2012-07-04 13:27 ` Fisher Grubb
2012-07-04 13:48 ` Devin Heitmueller
2012-07-04 13:51 ` Alex Deucher
2012-07-04 14:33 ` Antti Palosaari [this message]
2012-07-23 16:13 ` Joshua Roys
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