"However, the mic is not powered as no bias is being provided" If the micro is powered by a PIN, you have to tell the cape manager through the dtbo to power the micro .
Micka, On Wed, Jun 4, 2014 at 1:11 PM, Tristan Phillips <[email protected]> wrote: > In addition, my engineer tells me we are using MIC3L which is not used on > the audio cape. Thats what I need to get working... > > On Wednesday, 4 June 2014 11:50:48 UTC+1, Tristan Phillips wrote: >> >> Hi all, >> >> Bit of a strange question... We are working on something which uses a tlv320 >> in the same layout as the audio cape, with one difference, we have >> *added* an electret mic. So our board has line out left/right, line in >> left/right and also mic in. >> >> Apart from changing the i2c bus everything else is the same. With a >> modded overlay (addressing the right i2c bus) output and line input work as >> expected. However, the mic is not powered as no bias is being provided. >> Also the Alsa mixer does not mention the mic anywhere. >> >> My assumption is that I need to modify the device tree overlay to tell >> the driver that we have a mic present (I'm rather new to audio and dto's, >> so forgive me if I'm talking rubbish). >> >> Could anyone point me in the right direction to getting this mic working? >> >> Thanks in advance! >> >> Tris >> > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
