Hi Aapo, Timecop, Thanks for your assistance. Timecop: Thanks for your note on firmware. However, I can't find any file with the extension '.spt' in my system or system32 directories. My guess is that the firmware is embedded somewhere in the driver file(s). Perhaps I am best off using usbsnoop as Aapo suggests. Aapo: Thanks for your advice. It looks, however, like I have a fair bit of learning to do about these devices and how drivers interact with them. I'll give it a go and see where I get, however I think it will take me a while! Cheers, Luc On 4/17/07, Aapo Tahkola <aet@xxxxxxxxxxxxxx> wrote:
On Tue, 17 Apr 2007 11:51:05 +1000 "Luc Small" <luc.small@xxxxxxxxx> wrote: > Hi Aapo, > > Thanks for your email. > > > I do not think this tuner [TUA6045] is supported yet. Infineon > > offers datasheets though... > > Assuming for a moment that I were to write a driver for the TUA6045: > > 1. Is it at all likely that an existing driver could be adapted to > work with this device? i.e. are other tuners by Infineon supported > under Linux and, if so, how significantly do the tuners typically > differ in terms of how drivers interact with them? It would, after > all, be much easier to start with something (i.e. an existing driver) > than to start from scratch. Take a look at mt2060_set_params. I'm no expert on PPL tuners but it would seem to be similar to TUA6045. I think most PPL tuners share most of the design philosophy so it shouldn't be too hard. For starters, you want to read the "chip id" register on TUA6045 to see if you can get it working at all. Id start from scratch. You can also compare different tuners datasheets and sources to get the idea. "v4l# grep -ri infineon *" gives me nothing... > > 2. If I did succeed in writing such a driver, would I still face an > issue with firmware? i.e. the stick seems to be loaded (under Windows > XP) with C&E firmware rather than the Hanftek firmware that Linux > loads onto it. Is there any way to get hold of this (C&E) firmware or > to extract it from the Windows drivers? You can use usbsnoop to capture usb traffic. usbreplay can be used to send usb control messages and so. You might want to take a peek at how windows driver interacts with that tuner. You need to figure out its i2c address at least. > > Best wishes, > > Luc > > > On 4/17/07, Aapo Tahkola <aet@xxxxxxxxxxxxxx> wrote: > > On Mon, 16 Apr 2007 22:17:37 +1000 > > "Luc Small" <luc.small@xxxxxxxxx> wrote: > > > > > Hello, > > > > > > I have a slightly unusual USB DVB-T stick and I am trying to work > > > out if it is supported by Linux. > > > > > > I purchased it from Oatley Electronics here in Australia. A > > > picture and description can be viewed here: > > > > > > http://secure.oatleyelectronics.com//product_info.php?cPath=24&products_id=348&osCsid=3a2a89b61e884d851844e1d820c768e2 > > > > > > The device is enclosed in a metal casing with a typical 75ohm TV > > > connector at one end, and the USB connector at the other. There > > > are two holes in the case, allowing one red and one green LED to > > > be visible when the device is operating (under Windows XP). > > > > > > I have prized off the metal casing to get a view of circuit > > > board. It hosts, amongst other components, the following chips: > > > > > > - Zarlink MT352CG (Demodulator) > > > > > > - Infineon TUA6045 (Tuner) > > > > I do not think this tuner is supported yet. Infineon offers > > datasheets though... > > > > -- > > Aapo Tahkola > > > > !DSPAM:4624280a952921073714974! > -- Aapo Tahkola
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