Messages in this thread | | | Subject | Re: es1371 damaged after 2.2.x | Date | Mon, 17 Dec 2001 02:02:54 +0100 | From | Rob van Nieuwkerk <> |
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Hi,
No fix, but behaviour confirmed ..
greetings, Rob van Nieuwkerk
> Hi, all. I've finally sat down and looked at a problem that's been > annoying me for a long time: the es1371 driver in 2.4.x does not allow > me to set the mic recording gain as high as the 2.2.x driver does. > > With 2.2.20, the mixer channels SOUND_MIXER_MIC (7) and > SOUND_MIXER_RECLEV (11) can both be adjusted to control the recoding > level. The default levels are sufficient for my needs, and I can > adjust them to a much higher level. > > With 2.4.17-rc1, I can only control the recording level with > SOUND_MIXER_IGAIN (12), and even setting it to the maximum 0x6464 > value does not yield a satisfactory recording level. Changing > SOUND_MIXER_MIC (7) does not affect the recording level (unlike > 2.2.x). Further, SOUND_MIXER_RECLEV (11) is not available for reading > or writing. > > My guess is that the change in 2.3.x to use the ac97_codec driver for > es1371 is the cause of this damage. Under 2.4.x, the maximum available > recording level is barely usable for my application. Does anyone have > a fix for this? > > Note that when I say "recording level", I do mean recording. For later > processing. I don't mean "gain from mic to headphones". > > Regards, > > Richard.... > Permanent: rgooch@atnf.csiro.au > Current: rgooch@ras.ucalgary.ca > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ >
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