void USBHostShutdown();
This function turns off the USB module and frees all unnecessary memory. This routine can be called by the application layer to shut down all USB activity, which effectively detaches all devices. The event EVENT_DETACH will be sent to the client drivers for the attached device, and the event EVENT_VBUS_RELEASE_POWER will be sent to the application layer.
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MLA - USB Library Help Version : 2.16
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