hi, all
  i enable API like this:

// Simple Observium API Settings
$config['api']['enabled']                        = 1; 
$config['api']['module']['inventory']                = 1;


and then i use http://x.x.x.x/api.php?username=admin&password=admin&module=inventory&device=4 to export data, but retured :
{"login":{"success":{"code":"101","msg":"User authentification succeeded"}},"data":[]}

the device id is right, i can find inventory data from url http://x.x.x.x/device/device=4/tab=entphysical/
what's wrong about this ? thanks for your answer.

yuan