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NAME="FUNC-REF-COMEDI-LOGLEVEL"
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>comedi_loglevel</H1
><DIV
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><A
NAME="AEN4883"
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><H2
>Name</H2
>comedi_loglevel -- change Comedilib logging properties</DIV
><DIV
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><H2
>Synopsis</H2
><DIV
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><PRE
CLASS="FUNCSYNOPSISINFO"
>#include <comedilib.h></PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>int comedi_loglevel</CODE
>(int loglevel);</CODE
></P
><P
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><A
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><H2
> Description
</H2
><P
>This function affects the output of debugging and error messages
from Comedilib. By increasing the loglevel, additional debugging
information will be printed. Error and debugging messages are
printed to the stream stderr.</P
><P
>The default loglevel can be set by using the environment variable
COMEDI_LOGLEVEL. The default loglevel is 1.</P
><P
>In order to conserve resources, some debugging information is
disabled by default when Comedilib is compiled.</P
><P
>The meaning of the loglevels is as follows:</P
><P
>COMEDI_LOGLEVEL=0 Comedilib prints nothing.</P
><P
>COMEDI_LOGLEVEL=1 (default) Comedilib prints error messages when
there is a self-consistency error (i.e., an internal bug.)</P
><P
>COMEDI_LOGLEVEL=2 Comedilib prints an error message when an invalid
parameter is passed.</P
><P
>COMEDI_LOGLEVEL=3 Comedilib prints an error message whenever an
error is generated in the Comedilib library or in the C library,
when called by Comedilib.</P
><P
>COMEDI_LOGLEVEL=4 Comedilib prints a lot of junk.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN4905"
></A
><H2
> Return value
</H2
><P
>This function returns the previous loglevel.</P
><P
> </P
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