[alsa-devel] snd-usb-audio issues??
rstorer at ntlworld.com
Mon Apr 14 15:51:23 CEST 2014
>From what I can tell with the Windows driver Mic-In and Line-In share
the same mixer slider control, this may explain why only 1 capture
control appears under Linux.
I have tried adjusting the Mic levels while capturing audio but only
the Mic levels change the Line-In levels do not change at all.
Could this be confusing the driver somehow??
On 14/04/2014, Clemens Ladisch <clemens at ladisch.de> wrote:
> Richard Storer wrote:
>> bTerminalID 4
>> wTerminalType 0x0603 Line Connector
>> bDescriptorSubtype 6 (FEATURE_UNIT)
>> bUnitID 5
>> bSourceID 4
>> bmaControls( 0) 0x02
>> Volume Control
> That single capture mixer control controls the line input.
> (I don't know why it's labelled as "Mic", or how the device
> switches between mic and line signal levels.)
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