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cecc-client --help / --list-devices #747

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2af6106
implement cecc-client --help
barak Aug 17, 2026
4994f9c
implement cecc-client --list-devices
barak Aug 17, 2026
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82 changes: 80 additions & 2 deletions src/cecc-client/cecc-client.c
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Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,7 @@
#include <fcntl.h>
#include <stdarg.h>
#include <inttypes.h>
#include <time.h>
#if !defined(__WINDOWS__)
#include <unistd.h>
#endif
Expand Down Expand Up @@ -125,7 +126,84 @@ static void cb_cec_log_message(void* UNUSED(lib), const cec_log_message* message

static void cec_list_devices(void)
{
//TODO
cec_adapter_descriptor devices[10];
char buffer[50];
int8_t iDevicesFound = g_iface.detect_adapters(g_iface.connection, devices, sizeof(devices) / sizeof(cec_adapter_descriptor), NULL, 0);
int8_t iDevicePtr;

g_iface.version_to_string(g_config.serverVersion, buffer, sizeof(buffer));
printf("libCEC version: %s, %s\n", buffer, g_iface.get_lib_info(g_iface.connection));

if (iDevicesFound <= 0)
{
printf("Found devices: NONE\n");
return;
}

printf("Found devices: %d\n\n", iDevicesFound);

for (iDevicePtr = 0; iDevicePtr < iDevicesFound; iDevicePtr++)
{
printf("device: %d\n", (int)iDevicePtr + 1);
printf("com port: %s\n", devices[iDevicePtr].strComName);
printf("vendor id: %04x\n", (unsigned int)devices[iDevicePtr].iVendorId);
printf("product id: %04x\n", (unsigned int)devices[iDevicePtr].iProductId);
printf("firmware version: %d\n", (int)devices[iDevicePtr].iFirmwareVersion);

if (devices[iDevicePtr].iFirmwareBuildDate != CEC_FW_BUILD_UNKNOWN)
{
time_t buildTime = (time_t)devices[iDevicePtr].iFirmwareBuildDate;
struct tm* buildTm = gmtime(&buildTime);
if (buildTm && strftime(buffer, sizeof(buffer), "%a %b %e %H:%M:%S %Y +0000", buildTm))
printf("firmware build date: %s\n", buffer);
}

if (devices[iDevicePtr].adapterType != ADAPTERTYPE_UNKNOWN)
{
g_iface.adapter_type_to_string(devices[iDevicePtr].adapterType, buffer, sizeof(buffer));
printf("type: %s\n", buffer);
}

printf("\n");
}
}

static void cec_show_help_command_line(const char* strExec)
{
printf("\n"
"%s {-h|--help|-i|--info|-l|--list-devices|[COM PORT]}\n"
"\n"
"parameters:\n"
" -h --help Shows this help text\n"
" -i --info Shows the libCEC version and how it was compiled\n"
" -l --list-devices List all devices on this system\n"
" -t --type {p|r|t|a|x} The device type to use: playback, recording, tuner,\n"
" audio system or tv (x).\n"
" -o --osd-name {osd name} Use a custom osd name.\n"
" -p --port {int} The HDMI port to use as active source.\n"
" -b --base {int} The logical address of the device to which this\n"
" adapter is connected.\n"
" -r --rom Read saved settings from the EEPROM\n"
" -d --log-level {level} Sets the log level, as the sum of the levels\n"
" wanted: 1 error, 2 warning, 4 notice, 8 traffic,\n"
" 16 debug, 31 all. See cectypes.h for the values.\n"
" -m --monitor Start a monitor-only client.\n"
" -s --single-command Execute a single command and exit.\n"
" -c --command {command} Execute a single given command and exit. (Implies\n"
" --single-command)\n"
" [COM PORT] The com port to connect to. If no COM port is\n"
" given, the client tries to connect to the first\n"
" device that is detected.\n"
"\n"
"commands, read from stdin one per line or given with --command:\n"
" as Make this device the active source.\n"
" ea Ask the audio system to enable system audio mode.\n"
" da Ask the audio system to disable system audio mode.\n"
" gas Show the audio system's audio status.\n"
" gsam Show whether system audio mode is enabled.\n"
" scan Show information about each device on the bus.\n"
" q, quit Exit.\n",
strExec);
}

static int cec_process_command_line_arguments(int argc, char *argv[])
Expand Down Expand Up @@ -252,7 +330,7 @@ static int cec_process_command_line_arguments(int argc, char *argv[])
if (g_cecLogLevel == -1)
g_cecLogLevel = CEC_LOG_WARNING + CEC_LOG_ERROR;

// TODO ShowHelpCommandLine(argv[0]);
cec_show_help_command_line(argv[0]);
return 0;
}
else if (!strcmp(argv[iArgPtr], "-b") ||
Expand Down