[sugar] Changing Name of Alsamixer controls 'Analog Input' and 'V_REFOUT'

Jaya Kumar jayakumar.lkml
Fri Sep 7 03:12:33 EDT 2007

On 9/6/07, Arjun Sarwal <arjun at laptop.org> wrote:
> 1. There is a control 'Analog Input' which when enabled essentially allows
> us to switch to a DC coupling by shorting a coupling capacitor on the
> motherboard. To the user, it simply allows one to put a DC signal into the
> Mic input and thus switch to DC mode.
> The proposal is to change the name to 'DC Mode Enable'
> 2. V_REFOUT : This is also a control in Alsamixer and essentially switches
> ON the bias voltage required by the microphone.
> The proposal is to change the name to 'Mic Enable'
> I look forward to comments and feedback on the above two proposals.

Hi Arjun,

If the changes you intend to make to the alsa driver are intended to
be generic and not OLPC specific, then I encourage you to CC the
alsa-devel mailing list since AD1888 AC97 code is shared. The naming
changes you propose look fine except for number 2, since not all mics
don't need bias so calling it Mic Enable may not be accurate. I think
Mitch's suggestion of "Mic Bias Enable" is a good one.

Best regards,

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