Hello Mark,
according my last tests, setting error_print and error_level will not change
the errno return behavior. It will create (much) more output, readable by a
human from console or syslog.
But I'm searching for a error handling within my application and do some
things based on different error types. So it looks like there are a lot of
different errors bundled in the errno=2
Is there somewhere a documentation, maybe in the sources, what the meaning
is of the different errno?
Thanks
Achim
Mark Richards-3 wrote:
>
> On 8/16/2011 19:17, ekgnkb3d wrote:
>> Hi all,
>> after some tests with the owcapi I found out, that for example the
>> OW_get()
>> returns -1 with an errno of "2" in the following cases:
>> - invalid directory path, like "uncaxxched/"
>> - wrong CRC in unique-id of the device
>> - device is not reachable
>>
>> did I made something wrong, or is there another method of determining a
>> reason for an error?
>>
>> Thanks
>> Achim
>>
> use these before calling ow_init, then you will see the errors.
>
> OW_set_error_print("0");
> OW_set_error_level("6");
> //OW_set_error_level=(0=default, 1=err_connect, 2=err_call, 3=err_data,
> 4=err_detail, 5=err_debug, 6=err_beyond)
> //OW_set_error_print sets where the debug output should be directed.
> 0=mixed output, 1=syslog, 2=console.
>
> It would be nice if the API had an error callback.
>
> /m
>
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