#42: Audio driver for AD1888 - sensor input mode
--------------------+-------------------------------------------------------
Reporter: jg | Owner: blizzard
Type: task | Status: new
Priority: high | Milestone: rev1 alpha
Component: kernel | Resolution:
Keywords: |
--------------------+-------------------------------------------------------
Comment (by jg):
> Mark, Jaya; IIRC, someone told me that some microphones liked having the
> bias voltage applied, and some did not. Is my memory correct? Is there
> an ALSA control for this bias voltage)
Yes. Please use the "V_REFOUT Enable" control, it is part of mainline,
it determines whether or not the bias voltage is applied. The
undocumented register in AD1888 "High Pass Filter Enable" is also part
of mainline.
http://git.kernel.org/git/?p=linux/kernel/git/perex/alsa-
current.git;a=commit;h=02856b5684677b74095069c3be4774c2992e4fdc
--
Ticket URL: <http://dev.laptop.org/ticket/42#comment:2>
One Laptop Per Child <http://laptop.org/>
_______________________________________________
Devel mailing list
[email protected]
http://mailman.laptop.org/mailman/listinfo/devel
