0187773933 / hdmicec

HDMI-CEC Controller

Docker

• sudo apt-get install cec-utils

• https://github.com/Pulse-Eight/libcec

• https://github.com/Pulse-Eight/libcec/blob/bf5a97d7673033ef6228c63109f6baf2bdbe1a0c/src/libcec/adapter/Pulse-Eight/USBCECAdapterCommands.cpp

• https://github.com/julemand101/cec_dart/blob/master/lib/src/libcec_enum/CEC_opcode.dart

• https://github.com/RobertMe/gocec/blob/master/connection.go

• https://github.com/trainman419/python-cec

• find /usr/local -name "cec.h"

• /usr/local/Cellar/libcec/6.0.2/include/libcec/cec.h

• export CFLAGS="-I/usr/local/Cellar/libcec/6.0.2/include"

• python3 -m pip install --user cec

• find /usr/local/Cellar/libcec -name libcec.6.dylib

• export DYLD_LIBRARY_PATH="/usr/local/Cellar/libcec/6.0.2/lib:${DYLD_LIBRARY_PATH}"

• https://justaddpower.happyfox.com/kb/article/68-cec-over-ip-control

• Pulse-Eight/libcec#223

Vendor IDS

• 0f:87:00:00:f0
• Samsung = 240
• LG = ?

Linux libcec install

sudo apt-get update && \
sudo apt-get install -y cmake libudev-dev libxrandr-dev \
python3-dev swig libp8-platform-dev && \
git clone https://github.com/Pulse-Eight/libcec.git && \
cd libcec && mkdir build && cd build && cmake .. && \
make -j4 && \
sudo make install && \
sudo ldconfig

• https://github.com/chbmuc/cec/blob/master/cec.go
• https://github.com/znkr/cec
• https://github.com/jsolla/cec-decoderwd
• https://engineering.purdue.edu/ece477/Archive/2012/Spring/S12-Grp10/Datasheets/CEC_HDMI_Specification.pdf
• https://www.linuxuprising.com/2019/07/raspberry-pi-power-on-off-tv-connected.html
• https://blog.gordonturner.com/2016/12/14/using-cec-client-on-a-raspberry-pi/
• https://www.uli-eckhardt.de/vdr/cec.en.shtml
• https://github.com/torvalds/linux/blob/052d534373b7ed33712a63d5e17b2b6cdbce84fd/Documentation/driver-api/media/cec-core.rst#L6
• https://man.archlinux.org/man/cec-ctl.1.en
• https://help.crestron.com/cds/main/index.htm#Rio_Media_Zones/Controlling_devices_by_sending_CEC_commands.htm
• https://github.com/xbmc/xbmc/blob/f3f1df1eab2a38b7039e57635a6597b37510481a/xbmc/peripherals/devices/PeripheralCecAdapter.cpp#L67

We just need to find the vendor specific codes somehow. XBOX knows these

Send Keypress

// https://github.com/chbmuc/cec/blob/master/cec.go#L89
// https://github.com/chbmuc/cec/blob/master/libcec.go#L187
// https://github.com/Pulse-Eight/libcec/blob/bf5a97d7673033ef6228c63109f6baf2bdbe1a0c/src/libcec/LibCECC.cpp#L355
// echo "tx 1F:44:09" | cec-client -s -d 31 && echo "tx 1F:45" | cec-client -s -d 31
C.libcec_send_keypress( connection , 0xF , C.cec_user_control_code( 9 ) , 1 )

Monitor Mode ???

/usr/local/bin/cec-client-6.0.2 -m

cec-client with Pipes

mkfifo cecpipe
cec-client < /home/morphs/DOCKER_IMAGES/HDMICEC/cecpipe > ceclog.txt 2>&1
echo "tx 1F:82:10:00" > cecpipe

Get Device IDS

echo 'scan' | cec-client -s -d 1

Set Source to HDMI 2

echo "txn 1F:82:20:00" | cec-client -s -d 4

Power On

echo "on 0" | cec-client -s -d 1

Power Off

echo "tx 1F:36" | cec-client -s -d 1

Power Status

echo "pow 0" | cec-client -s -d 1

echo -e "tx 10\ntx 10:8F" | cec-client -s -d 31

Volume Up / Down

echo "volup" | cec-client -s -d 1

Mute Toggle

echo "tx 10:44:43" | cec-client -s -d 1