Users Guide

/   LED   
1.  PIN  LED      :
#sudo su –
#echo 346 > /sys/class/gpio/export
#echo out > /sys/class/gpio/gpio346/direction
2.  LED      :
#echo 1 > /sys/class/gpio/gpio346/value

    LED      :
#echo 0 > /sys/class/gpio/gpio346/value
      Linux (ALSA(


       Linux (ALSA (

  Linux kernel      )API (      .
      ALSA   Edge Gateway:
 18 .   ALSA
 
alsactl
       ALSA
alsaloop
     PCM  
alsamixer
 Ncurses  ALSA
alsaucm
   ALSA
amixer
  
amidi
   raw-MIDI  ALSA  
aplay arecord    
aplaymidi arecordmidi   MIDI    
aconnect aseqnet aseqdump    MIDI    
iecset
    IEC958  
  
    
:     ALSA  Ubuntu  packages.ubuntu.com/bionic/alsa-utils.

        ALSA.
1.    )  baytrailcraudio.(
#aplay -l
2. .
#aplay /usr/share/sounds/alsa/Front_Center.wmv
68  