Has anybody tried a driver hack to route sound output from the MSP4418G-A2 on a WinTV-PVR-350 back to the outgoing the 9-pin DIN video output connector (here: SCART) on a WinTV-PVR-350? I can't make that work, which assuming the outgoing audio signal is routed that way, it should, through some setting. The driver framework is a PCI+I2C skeleton for WinTV-PVR-350 plus /dev/radio bits from bttv-*.c, used with tuner.c and a modified msp3400.c. Stock msp3400.c 2.4.20 patched with the bttv-0.7.100 patch-2.4.20-kraxel.gz doesn't do it, unfortunately neither does my hacked msp3400.c. By hacked I mean to fix up differences between MSP3400 and MSP4418G-A2, at least with regards to what "radio" from xawtv 3.82 use and to instrument i2c calls to printk the register settings and readings. I've tried source select 0, 1 and 15 combined with SCART1 and 2 output select from SCART1 DA, SCART2 DA and (less logically) MONO. BTW, I *did* set SCART2 volume output, 0x12:0x40, to the same value as to 0x12:0x7 (or:ed with 1 as said on page 30). I can send the msp3400.c patch if wanted. (No; the changes *can't* be deduced from those proprietary drivers since those do not even mention any MSPxxxx part, besides an unused macro definition for the obvious I2C device address. I guess that's a clue.) The tuner (tuner.c; mostly stock, set to type 5) locks on to the local FM stations, and the signal seems properly passed on to the MSP4418G when autodetected (stock msp3400.c doesn't do this for AUDC_SET_RADIO), since the MSP4418G properly identifies the signal as FM radio, type 0x40. (Which it doesn't when input is taken from ANA_IN2+, for example; detection then logs an error.) Maybe there *is* no useful outgoing signal path; maybe the outgoing audio signal isn't routed through the MSP4418G? Anybody followed the signal paths on the board? A curious detail is that the MSP44x8 datasheet (msp44x8g_2pd.pdf, 6251-516-2PD, "Edition March 15, 2001") says in "Table 1-1" and "Table 3-7" that the MSP4418G doesn't handle FM Radio. Still, it identifies a signal as such, and the WinTV-PVR-350 is touted as radio capable and was shipped with an radio connector and one of those standard "flat-wire" dipole (sp?) antennas. Maybe that's just the pre-A2 versions; the version info in chapter 1.1 and 1.2 contradictorily indicate that it works. Or perhaps the signal should be modulated in some other way (than with a 10.7MHz carrier) by the tuner? Oh well. On to fumbling with the SAA7115. brgds, H-P
