我正在尝试在没有 Pulse-Eight USB-CEC 适配器的 Fedora 上使用 libcec-2.1.4 进行 CEC。我根据自述文件构建源代码，但 cec-client 似乎需要 USB-CE 适配器。
root## echo "standby 0" | cec-client -s
WARNING: [ 0] libCEC has not been compiled with detection code for the Pulse-Eight USB-CEC Adapter, so the path to the COM port has to be provided to libCEC if this adapter is being used
root# echo h | cec-client -s d 1
opening a connection to the CEC adapter...
DEBUG: [ 1] unregistering all CEC clients
DEBUG: [ 2] Broadcast (F): osd name set to 'Broadcast'
ERROR: [ 3507] error opening serial port '1': No such file or directory
ERROR: [ 3508] could not open a connection (try 1)
ERROR: [ 6343] error opening serial port '1': No such file or directory
ERROR: [ 6343] could not open a connection (try 2)
ERROR: [ 8233] error opening serial port '1': No such file or directory
ERROR: [ 8233] could not open a connection (try 3)
ERROR: [ 9492] error opening serial port '1': No such file or directory
ERROR: [ 9492] could not open a connection (try 4)
NOTICE: [ 10498] connection opened
ERROR: [ 10498] could not start CEC communications
unable to open the device on port 1
我还在 Raspberry Pi 上构建了源代码，即使没有 CEC 适配器，它也可以成功地工作电视开/关/HDMI 输入更改等。所以我相信有一种方法可以让它在 Fedora box 上工作，但现在不能工作。如果您有任何用于配置构建源的指南，请告诉我。会有一些配置选项作为覆盆子的构建。或者，如果您知道 HDMI CEC 的其他开源代码，请告诉我。
谢谢