[sane-devel] saned at service environment question

[Olaf Meeuwissen]

Hi,

Apologies for the belated reply.

ToddAndMargo writes:

> On 11/25/2017 01:09 AM, Olaf Meeuwissen wrote:
>> Hi ToddAndMargo,
>>
>> ToddAndMargo writes:
>>
>>> Dear list,
>>>
>>> In the man page, the script for saned at .service shows:
>>
>> # OK, you are reading the documentation, just rather selectively ;-)
>>
>>> Environment=SANE_CONFIG_DIR=/etc/sane.d
>>> # If you need to debug your configuration uncomment the next line and
>>> # change it as appropriate to set the desired debug options
>>> # Environment=SANE_DEBUG_DLL=255 SANE_DEBUG_BJNP=5
>>>
>>> https://bugzilla.redhat.com/show_bug.cgi?id=1091566#c8
>>> also adds:
>>>
>>> #Environment=SANE_DEBUG_DLL=128 SANE_DEBUG_NET=128
>>>
>>> Question:
>>> Do you un-comment the all, or only uncomment one of them?
>>
>> You add the SANE_DEBUG_* variables for the backends you want to debug.
>> In your case, you probably want to look at least at SANE_DEBUG_DLL and
>> SANE_DEBUG_NET and the backend that supports your particular scanner.
>>
>>> Question:
>>>
>>> Should it not be?
>>>
>>> Environment=SANE_CONFIG_DIR=/etc/sane.d SANE_DEBUG_DLL=255
>>> SANE_DEBUG_BJNP=5 SANE_DEBUG_NET=128
>>>
>>> all run togther with spaces as the demlimier?
>>
>> Please read the systemd documentation.  I vaguely seem to remember all
>> the Environment "assignments" are run together by systemd, though.
>>
>> # Disclaimer: I no longer use systemd.
>>
>>> Questions:
>>>
>>> What is
>>>         SANE_CONFIG_DIR=/etc/sane.d
>>
>> An environment variable that tells the dll (and most other backends)
>> where to look for their configuration.  See sane-dll(5).
>>
>>>         SANE_DEBUG_DLL=255
>>>         SANE_DEBUG_BJNP=5, and
>>>         SANE_DEBUG_NET=128
>>
>> Environment variables that tell each of the backend how much to log.
>> Larger values produce more output.  What and how much exactly differs
>> between backends.
>>
>> Hope this helps,
>
> Not really, but thank you for trying.
>
> What systemd documentation are you speaking of?

The documentation you get from `man systemd` and what it lists in the
SEE ALSO section.

Hope this helps,
--
Olaf Meeuwissen, LPIC-2            FSF Associate Member since 2004-01-27
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