USB Host HID APIs

Files added to Host HID projects:
usb-host-hid.h
usb-host-hid.c
usb-host-hid-xxx.c

Where xxx is the type of HID device: mouse, keyboard, etc.

Public APIs provided:

Hosts communicate with attached HID devices at time intervals determined during enumeration. All data exchanges are coordinated through the user written functions set up with USB_HOST_xxx_EventHandlerSet.


USB_HOST_HID_xxx_EventHandlerSet

Description Inputs Returns
USB_HOST_HID_xxx_EventHandlerSet
establishes a user supplied function as the
function to be executed upon each valid
device event.
&user-event-handler USB_HOST_HID_MOUSE_RESULT

Example of opening and establishing an event handler for a mouse


void APP_HOST_Mouse_EventHandler(USB_HOST_HID_MOUSE_HANDLE
handle, USB_HOST_HID_MOUSE_EVENT event, void * pData)
{ switch (event)
{
case USB_HOST_HID_MOUSE_EVENT_ATTACH: . . .
case USB_HOST_HID_MOUSE_EVENT_DETACH: . . .
case USB_HOST_HID_MOUSE_EVENT_REPORT_RECEIVED: . . .
}
}

USB_HOST_HID_MOUSE_EventHandlerSet(APP_HOST_Mouse_EventHandler);


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