====== LCD MODULE ======

An example to display system information on the LCD. I hope we can see the track information like title/artist/play-time and so on.
<code>
+------------------+
| Login Name       |
|  root            |
| My IP Address    |
|  192.168.XXX.XXX |
| Date & Time      |
|  06/29/15 Mon    |
|  09:00:00 am     |
+-------------------
</code>
{{http://dn.odroid.com/S805/s_20150630_101758.jpg?600|}}

How to enable the 128x64 GLCD driver and its framebuffer
  * st7565 driver of fbtft_device must be enabled as a "module" in the kernel menuconfig.
  * Kernel and module build
  * Copy uImage and meson8b_odroidc.dtb file in boot/dtsb directory to the boot partition.
  * Copy driver modules into "lib" directory.
  * To enable the auto loading the LCD driver, add "spicc" and "fbtft_device" into "/etc/modules-load.d/odroid.conf" 
  * To add a few driver parameters, Add "fbtft_device name=st7565-fb speed=1000000" into "/etc/modprobe.d/modprobe.conf"
  * To enable the framebuffer, add "fbcon=map:22" in the end of the kernel arguments line.
  * Copy this sample LCD script into /etc/profile.d
<code>
#!/bin/bash
clear
tput civis
x=0
while true; do
        ip=$(ifconfig | sed -En 's/127.0.0.1//;s/.*inet (addr:)?(([0-9]*\.){3}[0-9]*).*/\2/p')
        date=$(date '+ %D %a')
        time=$(date '+ %X')
        name=$(whoami)

        echo "Login Name"
        echo " $name"
        echo "My IP Address"
        echo " $ip"
        echo "Date & time"
        echo "$date"
        echo "$time";
	tput cup 0 0
	sleep 1
	x=$(expr $x + 1)
	if [ "$x" -eq 5 ]; then clear; x=0;
	fi
done
</code>


Optional auto-login 

  * Edit [Service] of ExecStart in /etc/systemd/system/getty.target.wants/getty@tty1.service
<code>
ExecStart=~/sbin/agetty –noclear %I TERM -> ExecStart=~/sbin/agetty –autologin root –noclear %I TERM
</code>


**Above process was tested on the RuneAudio OS image. Volumio OS should be very similar probably.**

====== Configure the HiFi DAC shield ======

If you get the latest kernel source from our Github, you can use the I2S DAC.

Also add below things in the boot.ini file to activate the DAC.
<code>
# PCM5102 audio DAC Enable/Disable
# Uncomment the line below to __ENABLE__ Audio-DAC(PCM5102) 
# setenv enabledac "enabledac"

setenv bootargs "root=UUID=e139ce78-9841-40fe-8823-96a304a09859 rootwait ro ${condev} no_console_suspend vdaccfg=0xa000 logo=osd1,loaded,0x7900000,720p,full dmfc=3 cvbsmode=576cvbs hdmimode=${m} m_bpp=${m_bpp} vout=${vout_mode} ${disableuhs} ${hdmi_hpd} ${hdmi_cec} ${enabledac}"
</code>

If we uncomment the "# setenv enabledac "enabledac" line, we can see below list with "asound -l" command.
<code>
card 0: AMLM8AUDIO [AML-M8AUDIO], device 0: AML PCM pcm5102-0 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: AMLM8AUDIO [AML-M8AUDIO], device 1: SPDIF PCM dit-hifi-1 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
</code>

The first one is I2S DAC and the second one is HDMI audio.