shr-u: how do you keep awake?

[arne anka]

while playing around with shr-u the last week, i enabled autosuspend,  
which works well.

i was pleasantly suprised to see, that the fr stays nevertheless awake  
when on usb -- a feat i did not yet manage with debian/fso.

how is that done?

looking at the config files did not really make things clear to me, but  
posed again the question of the relation between

[odeviced.idlenotifier]
ignoreinput = 2,3,4

and

[odeviced.input]
report1 = AUX,key,169,1
report2 = POWER,key,116,1
report3 = CHARGER,key,356,0
report4 = HEADSET,switch,2,0