Cloud Led On/Off; Advanced Linux Sound Architecture (Alsa) - Dell Edge Gateway 3003 Installation And Operation Manual

4. Activate TPM.
# cctk --tpmactivation=activate --valsetuppwd=<Setuppwd>
5. Reboot the system.
# systemctl reboot
NOTE: Do not power off the system while it is rebooting.
6. Check whether TPM is active.
# cctk --tpmactivation

Cloud LED On/Off

1. To export Cloud LED PIN, run the command:
#sudo su –
#echo 346 > /sys/class/gpio/export
#echo out > /sys/class/gpio/gpio346/direction
2. To turn on Cloud LED, run the command:
#echo 1 > /sys/class/gpio/gpio346/value
or
To turn off Cloud LED, run the command:
#echo 0 > /sys/class/gpio/gpio346/value

Advanced Linux Sound Architecture (ALSA)

Advanced Linux Sound Architecture (ALSA) is part of the Linux kernel, which provides an Application Programming Interface
(API) for sound card device drivers.
The following table lists ALSA utilities included with the Edge Gateway:
Table 18. ALSA utilities
Utilities
alsactl
alsaloop
alsamixer
alsaucm
amixer
amidi
aplay, arecord
aplaymidi, arecordmidi
aconnect, aseqnet, aseqdump
iecset
Description
Advanced controls for ALSA sound drivers
Create loopbacks between PCM capture and playback devices
ALSA Ncurses mixer
ALSA use-case manager
Command-line mixer
Read from and write to ALSA raw-MIDI ports
Command-line playback and recording
Command-line MIDI playback and recording
Command-line MIDI sequencer control
Set or dump IEC958 status bits
Setting up the operating system 69