Hi Pham Thanh Nam, you are exactly at the point! Am Freitag, den 17.07.2009, 08:32 +0700 schrieb Pham Thanh Nam: > I read somewhere that the radio had ever worked for this card but has > stopped working with newer kernels. I had the same problem when I used > my card (AverMedia AverTV GO 007 FM Plus) with card=57 before. Radio had > worked with old kernel versions. > Try this: > hg clone http://linuxtv.org/hg/v4l-dvb > Edit v4l-dvb/linux/drivers/media/video/saa7134/saa7134-cards.c, go to > entry [SAA7134_BOARD_AVERMEDIA_GO_007_FM], in .radio = { ... }, > change .amux = LINE1 to .amux = TV > make > then > sudo make install > and reboot. > I don't know why someone has changed it to LINE1. But if the > modification works for you, I think we need to modify a bit. > Please let us know if it works. The AVerMedia AVerTV GO 007 FM was the first card ever reported working with the new saa7131e chip, including the previously external tda8290 demodulator built into that chip, by Assaf Gillat. This did include working radio on LINE* input. No other later card does have such and all LINE* input for radio was not working on all other later cards. However, all later cards did use gpio21 to switch those stuff into radio mode, having it either high or later also low. (vice versa/swapped) That single gpio did trigger a cascade of further switches on later cards, starting with selecting the right antenna input on a further microscopic switch later in the row and routing the radio IF to the TV input for decoding "on chip". This did also include that the radio IF has to go over that extra/special 7.5MHz ceramic filter on these cards, also present on the 007. I can tell, that this huge ceramic filter on recent cards is not any longer easily to identify, there are SMD replacements for it, and with recent circuits for additional external LNAs, all looks even much more interesting ;) Fact is so far, with the previous reports the card should work with kernels around 2.6.13,14,15. Since all other later cards did not work for radio that way, Hartmut introduced decoding from radio IF at amux TV (saa7133/35/31e only) and that maybe did break this one. Or the other way round, before he introduced that, it might have been working. I don't have the specs, but as long nothing else is reported, I can't exclude that the tda8275 in combination with a tda8290 can deliver base band radio stereo sound to some pair of stereo LINE input of the saa7131e. Cheers, Hermann -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
