On Saturday, March 12, 2011 19:19:00 Ondrej Zary wrote: > Hello, > the radio-maestro driver is badly broken. It's intended to drive the radio on > MediaForte ESS Maestro-based sound cards with integrated radio (like > SF64-PCE2-04). But it conflicts with snd_es1968, ALSA driver for the sound > chip itself. > > If one driver is loaded, the other one does not work - because a driver is > already registered for the PCI device (there is only one). This was probably > broken by conversion of PCI probing in 2006: > ttp://lkml.org/lkml/2005/12/31/93 > > How to fix it properly? Include radio functionality in snd-es1968 and delete > radio-maestro? Interesting. I don't know anyone among the video4linux developers who has this hardware, so the radio-maestro driver hasn't been tested in at least 6 or 7 years. The proper fix would be to do it like the fm801.c alsa driver does: have the radio functionality as an i2c driver. In fact, it would not surprise me at all if you could use the tea575x-tuner.c driver (in sound/i2c/other) for the es1968 and delete the radio-maestro altogether. Both are for the tea575x tuner, although radio-maestro seems to have better support for the g_tuner operation. It doesn't seem difficult to add that to tea575x-tuner.c. The fm801 code for driving the tea575x is pretty horrible and it should be possible to improve that. I suspect that those read/write/mute functions really belong in tea575x-tuner.c and that only the low-level gpio actions need to be in the fm801/es1968 drivers. Hope this helps. Regards, Hans BTW: if anyone has spare hardware for testing the radio-maestro/tea575x-tuner, then I'm interested. -- Hans Verkuil - video4linux developer - sponsored by Cisco -- 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
