1COMEDI_LOGLEVEL(3)                                          COMEDI_LOGLEVEL(3)
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NAME

6       comedi_loglevel - change Comedilib logging properties
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SYNOPSIS

9       #include <comedilib.h>
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11       int comedi_loglevel (int loglevel);
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DESCRIPTION

14       This  function  affects the output of debugging and error messages from
15       Comedilib.  By increasing the loglevel, additional  debugging  informa‐
16       tion  will be printed.  Error and debugging messages are printed to the
17       stream stderr.
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19       The default loglevel can be  set  by  using  the  environment  variable
20       COMEDI_LOGLEVEL.  The default loglevel is 1.
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22       In  order to conserve resources, some debugging information is disabled
23       by default when Comedilib is compiled.
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25       The meaning of the loglevels is as follows:
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27       COMEDI_LOGLEVEL=0  Comedilib prints nothing.
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29       COMEDI_LOGLEVEL=1  (default) Comedilib prints error messages when there
30       is a self-consistency error (i.e., an internal bug.)
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32       COMEDI_LOGLEVEL=2   Comedilib  prints  an error message when an invalid
33       parameter is passed.
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35       COMEDI_LOGLEVEL=3  Comedilib prints an error message whenever an  error
36       is  generated in the Comedilib library or in the C library, when called
37       by Comedilib.
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39       COMEDI_LOGLEVEL=4  Comedilib prints a lot of junk.
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RETURN VALUE

42       This function returns the previous loglevel.
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44                                28 October 2007             COMEDI_LOGLEVEL(3)