HelenOS sources

LOGGER_CONTROL_SET_LOG_LEVEL   51 uspace/lib/c/include/ipc/logger.h 	LOGGER_CONTROL_SET_LOG_LEVEL,
LOGGER_CONTROL_SET_LOG_LEVEL   51 uspace/lib/posix/include/libc/ipc/logger.h 	LOGGER_CONTROL_SET_LOG_LEVEL,
HelenOS homepage, sources at GitHub