1libtracefs(3) 2============= 3 4NAME 5---- 6tracefs_set_loglevel - Set log level of the library 7 8SYNOPSIS 9-------- 10[verse] 11-- 12*#include <tracefs.h>* 13 14int *tracefs_set_loglevel*(enum tep_loglevel _level_); 15-- 16 17DESCRIPTION 18----------- 19The *tracefs_set_loglevel()* function sets the level of the library logs that will be printed on 20the console. See _libtraceevent(3)_ for detailed description of the log levels. Setting the log 21level to specific value means that logs from the previous levels will be printed too. For example 22_TEP_LOG_WARNING_ will print any logs with severity _TEP_LOG_WARNING_, _TEP_LOG_ERROR_ and 23_TEP_LOG_CRITICAL_. The default log level is _TEP_LOG_CRITICAL_. When a new level is set, it is 24also propagated to the libtraceevent. 25 26EXAMPLE 27------- 28[source,c] 29-- 30#include <tracefs.h> 31 32tracefs_set_loglevel(TEP_LOG_ALL); 33... 34/* call libtracefs or libtraceevent APIs and observe any logs they produce */ 35... 36tracefs_set_loglevel(TEP_LOG_CRITICAL); 37-- 38FILES 39----- 40[verse] 41-- 42*tracefs.h* 43 Header file to include in order to have access to the library APIs. 44*-ltracefs* 45 Linker switch to add when building a program that uses the library. 46-- 47 48SEE ALSO 49-------- 50*libtracefs*(3), 51*libtraceevent*(3), 52*trace-cmd*(1) 53 54AUTHOR 55------ 56[verse] 57-- 58*Steven Rostedt* <rostedt@goodmis.org> 59*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com> 60-- 61REPORTING BUGS 62-------------- 63Report bugs to <linux-trace-devel@vger.kernel.org> 64 65LICENSE 66------- 67libtracefs is Free Software licensed under the GNU LGPL 2.1 68 69RESOURCES 70--------- 71https://git.kernel.org/pub/scm/libs/libtrace/libtracefs.git/ 72 73COPYING 74------- 75Copyright \(C) 2021 VMware, Inc. Free use of this software is granted under 76the terms of the GNU Public License (GPL). 77