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How to test remote wakeup (Make sure connecting to usb host and gadget is loaded)
1. Prepare a usb host which featured with remote wakeup
alternatively, You can use another i.mx board (like mx50 rdp, or mx6q)
2. Boot up both boards, and connect two boards with usb cable
3. At device side, do below commands:
- modprobe g_file_storage file=/dev/mmcblk0p1 (other gadgets are also ok)
- echo 1 > /sys/devices/platform/fsl-usb2-udc/gadget/remote_wakeup
4. At host side, do below command:
- echo enabled > /sys/devices/platform/fsl-ehci.1/power/wakeup
- echo standby > /sys/power/state
5. Send Remote wakeup to wake up host
At device side, do below command:
echo 1 > /sys/devices/platform/fsl-usb2-udc/gadget/start_remote_wakeup
6. The expected behaviour is: host is waked up, and there is
not re-enumeration happens.
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