Re: [PATCH] ALSA: hda - Tweak OLPC XO-1.5 microphone bias

2009-11-10 Thread Takashi Iwai
At Mon, 9 Nov 2009 15:17:24 + (GMT), Daniel Drake wrote: Our contacts at Conexant suggested that we reduce the external microphone bias to 50% in order to center the input signal with the DC input range of the codec. This is because the microphone port is DC coupled for potential use

[PATCH] ALSA: hda - Tweak OLPC XO-1.5 microphone bias

2009-11-09 Thread Daniel Drake
Our contacts at Conexant suggested that we reduce the external microphone bias to 50% in order to center the input signal with the DC input range of the codec. This is because the microphone port is DC coupled for potential use with sensors. Signed-off-by: Daniel Drake d...@laptop.org ---