Please accept my apologies if you get this message more than once, but I don't think the first two attempts got through. I've just bought a second hand AVerMedia TVCam98. Basically it's a TVCapture98 with the MSP3410 Nicam stereo daughterboard fitted, bundled with a video camera and remote control (I don't have the IR receiver for the remote though). I have it tuning and displaying video from the TV and video inputs OK, but no matter what I tried I couldn't get anything more than a few quiet pops and clicks out of the audio output. The btaudio driver isn't any better- it creates two devices (dsp1 and dsp2); the first one seems not to work at all, and the second one records nothing but silence. Here are the relevant parts of the log: bttv: driver version 0.7.91 loaded bttv: using 2 buffers with 2080k (4160k total) for capture bttv: Host bridge is Advanced Micro Devices [AMD] AMD-760 [IGD4-1P] System Controller bttv: Bt8xx card found (0). bttv0: Bt878 (rev 2) at 00:0b.0, irq: 3, latency: 32, memory: 0xe3001000 bttv0: detected: AVermedia TVCapture 98 [card=13], PCI subsystem ID is 1461:0002bttv0: using: BT878(AVerMedia TVCapture 98) [card=13,autodetected] i2c-dev.o: Registered 'bt848 #0' as minor 0 i2c-core.o: adapter bt848 #0 registered as adapter 0. bttv0: Avermedia eeprom[0x4039]: tuner=5 radio:no remote control:yes bttv0: i2c: checking for MSP34xx @ 0x80... not found bttv0: i2c: checking for TDA9875 @ 0xb0... not found bttv0: i2c: checking for TDA7432 @ 0x8a... not found tvaudio: TV audio decoder + audio/video mux driver tvaudio: known chips: tda9840,tda9873h,tda9874h/a,tda9850,tda9855,tea6300,tea6420,tda8425,pic16c54 (PV951) i2c-core.o: driver generic i2c audio driver registered. i2c-core.o: driver i2c TV tuner driver registered. tuner: probing bt848 #0 i2c adapter [id=0x10005] tuner: chip found @ 0xc2 bttv0: i2c attach [client=Philips PAL,ok] i2c-core.o: client [Philips PAL] registered to adapter [bt848 #0](pos. 0). bttv0: registered device video0 bttv0: registered device vbi0 I now believe that the problem is due to the MSP3410 isn't being detected; in fact I found a thread in the list archive from August last year from someone else with exactly the same problem, and it was suggested to them that either: a. The MSP3410 might need a GPIO pin toggling to reset it before it can be detected. b. SCL and SDA might either be routed via a microcontroller or to a pair of GPIO lines because the MSP3400 needs long addresses that the BT878 can't produce or something like that. I had a look at the boards, and I discovered that SCL and SDA on the MSP3410 are connected directly to SCL and SDA on the BT878 as usual, and that the reset pin is connected to pin 75 of the BT878. So, I modified bttv-cards.c::bttv_init_card1() to call boot_msp34xx(btv,11). After that, the output from "detect" changed from this: 0xa0: eeprom (bt878, Hauppauge-848) 0xa2: ??? 0xa4: ??? 0xa6: ??? 0xa8: ??? 0xaa: ??? 0xac: ??? 0xae: ??? 0xc2: tuner (error: Device or resource busy) To this: 0x88: Bt832 0xa0: eeprom (bt878, Hauppauge-848) 0xa2: ??? 0xa4: ??? 0xa6: ??? 0xa8: ??? 0xaa: ??? 0xac: ??? 0xae: ??? 0xc2: tuner (error: Device or resource busy) Since there's definitely no BT832 on the board, it would appear that the MSP3410 is appearing at address 0x88 after it has been reset. I then attempted to modify the drivers so that the MSP3400 driver looked for the chip at address 0x88 instead of 0x80, but I think I got something wrong because I still don't get any sound out of the card. The messages I get now are: bttv: driver version 0.7.103 loaded bttv: using 4 buffers with 2080k (8320k total) for capture bttv: Host bridge is Advanced Micro Devices [AMD] AMD-760 [IGD4-1P] System Controller bttv: Bt8xx card found (0). bttv0: Bt878 (rev 2) at 00:0b.0, irq: 3, latency: 32, mmio: 0xe3001000 bttv0: detected: AVermedia TVCapture 98 [card=13], PCI subsystem ID is 1461:0002bttv0: using: BT878(AVerMedia TVCapture 98) [card=13,autodetected] bttv0: Hauppauge/Voodoo msp34xx: reset line init [11] i2c-dev.o: Registered 'bt848 #0' as minor 0 i2c-core.o: adapter bt848 #0 registered as adapter 0. bttv0: Avermedia eeprom[0x4039]: tuner=5 radio:no remote control:yes bttv0: using tuner=5 bttv0: i2c: checking for MSP34xx @ 0x88... found i2c-core.o: driver i2c msp3400 driver registered. bttv0: i2c: checking for TDA9875 @ 0xb0... not found bttv0: i2c: checking for TDA7432 @ 0x8a... not found tvaudio: TV audio decoder + audio/video mux driver tvaudio: known chips: tda9840,tda9873h,tda9874h/a,tda9850,tda9855,tea6300,tea6420,tda8425,pic16c54 (PV951) i2c-core.o: driver generic i2c audio driver registered. i2c-core.o: driver i2c TV tuner driver registered. tuner: probing bt848 #0 i2c adapter [id=0x10005] tuner: chip found @ 0xc2 i2c-core.o: client [Philips PAL] registered to adapter [bt848 #0](pos. 0). bttv0: PLL: 28636363 => 35468950 .. ok bttv0: registered device video0 bttv0: registered device vbi0 Has anyone else managed to get sound working on this card, or have any more suggestions about how to get it working? -- ------------ Alex Holden - http://www.linuxhacker.org ------------ If it doesn't work, you're not hitting it with a big enough hammer
