CX23102 + TDA18211 (== DVB-T only version of TDA18271)
Maybe someone have better knowledge about that as I am not any familiar with CX23102 nor analog TV side.
Antti On 10/09/2011 03:56 AM, Ling Sequera wrote:
I try to post this at email@example.com <mailto:firstname.lastname@example.org>, but the system rejects the sending, Excuse me for send this to you, I have understood that you are one of the developers of the tda18271 module. I have a "Mygica u719c usb analog tv stick", lsusb output identify this device as: "ID 1f4d:0237 G-Tek Electronics Group". Googling, I found that this device is the same "Iconbit Analog Stick U100 FM <http://translate.google.es/translate?sl=ru&tl=en&js=n&prev=_t&hl=es&ie=UTF-8&layout=2&eotf=1&u=http%3A%2F%2Fwww.f1cd.ru%2Ftuners%2Freviews%2Ficonbit_u100_fm_iconbit_u500_fm_page_1%2F>", which has support in the kernel since version 3.0 as shown here <http://cateee.net/lkddb/web-lkddb/VIDEO_CX231XX.html>. I opened the device to corfirm this information, and effectively, it has to chips, the demod Conexan "CX23102" and the DVB-T tuner NPX "TDA-18211". I installed the precompiled version of kernel 3.0.4, and the device was reconized, but only works in the modes: composite and s-video. I check the source code and I found that it don't support tv tuner mode (.tuner_type=TUNER_ABSENT in 513 line of the cx231xx-cards.c <http://lxr.linux.no/#linux+v3.0.4/drivers/media/video/cx231xx/cx231xx-cards.c> source file), I want to add support for this. The TDA-18211 tuner has support in the kernel in the module tda18271 according to the thread of this mailing list <http://email@example.com/msg30055.html>. I have never written a module, but I have basic knowledge in C, so I need a book, reference, api, or something, to write the missing code to add support for this device as tv tuner. Also I need help understanding how to read usb-snoop log files and identify the necessary parameters for configure the code. Thanks in advance. Best regards.
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