SGTL500 Audio Device - Line-In Not Working

PaulDeMetrotion — Wed, 04 Sep 2013 17:53:57 GMT

I am currently debugging a custom SBC that utilizes the i.MX6Q processor. The device supports and HDMI audio and an external SGTL5000 audio device. The board provides Line-Out, Headphones, Line-In, and Microphone connections. The speakers and headphones work fine but I cannot get the microphone or line-in to work. Following is the behavior I see:

Hear sound from speakers when speakers selected
Hear sound from speakers and headphones when headphones selected
See volume meter move when microphone is used but cannot hear through speakers
Hear nothing when I hook up an iPod to the line-in – Have no selection

Do the line-in and mic functions need to be set up in my custom board file? This is what I have now.

static struct
mxc_audio_platform_data mx6_sbc35_c398_audio_data = {

.ssi_num = 1,

.src_port = 2,

.ext_port = 5,

.init = mx6_sbc35_c398_sgtl5000_init,

.hp_gpio = -1,

.mic_gpio = -1,

};

Re: SGTL500 Audio Device - Line-In Not Working

PaulDeMetrotion — Fri, 13 Sep 2013 13:34:52 GMT

Got this working. Once I configured the audio chip properly using alsamixer and ran the command 'pactl load-module module-loopback', everything works fine.

i.MX ProcessorsのトピックSGTL500 Audio Device - Line-In Not Working

SGTL500 Audio Device - Line-In Not Working

Re: SGTL500 Audio Device - Line-In Not Working