[nut-Feature Requests][304329] Drivers: add a "-p" probe parameter

[nut-featurerequests at alioth.debian.org]

Feature Requests item #304329, was opened at 11/01/2007 10:11
Status: Open
Priority: 3
Submitted By: Arnaud Quette (aquette)
Assigned to: Nobody (None)
Summary: Drivers: add a "-p" probe parameter 
Group: None
Category: None


Initial Comment:
having a "-p" parameter to probe for device, and exit upon completion would be a good thing for applications such as MGE PSP for autodetecting local UPS.

Ie, calling "usbhid-ups -p auto" would return
Detected a UPS: MGE UPS SYSTEMS/Evolution on bus ...
or No UPS detected.

Some notes:
- the output need to be standardized to be usable by external apps,
- the driver exits after having printed the above message, so after the first call to upsdrv_updateinfo() in drivers/main.c,
- the output message can be handled in drivers/main.c
- the MGE PSP currently rip the driver code (from usbhid-ups, mge-shut and mge-utalk) to do the device autodetection. This is obviously sub optimal and is in NUT scope, rather than application scope. 


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