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use of otg_vbus (otg_det signal)

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Posted at 11/2/2016 19:56:14     
Hi all,
I am looking at the schematic of the reload core module and see that there is an otg_det signal. In the schematic of the reload board this is tied via a resistor to VBUS0. However, when I look at the device tree files or driver code for linux I don't find this signal anywhere? How is this signal used?
Thanks
B
otg det.JPG
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Posted at 11/3/2016 10:40:53     
VBUS is the input and output bidirectional pin.
For Device, is a  supply power input pin.
For Host ,will supply a 5V power output to the devices.
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Posted at 11/4/2016 18:14:11     
isle Posted at 11/3/2016 10:40
VBUS is the input and output bidirectional pin.
For Device, is a  supply power input pin.
For Host ...

Thanks, I know that, but what is the role of the OTG_DET signal?
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Posted at 11/7/2016 10:55:22     

the cpu detect this signal to know if there is a host device plugged in.
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