USBCBCheckOtherReq Function

void USBCBCheckOtherReq();

When SETUP packets arrive from the host, some firmware must process the request and respond appropriately to fulfill the request. Some of the SETUP packets will be for standard USB "chapter 9" (as in, fulfilling chapter 9 of the official USB specifications) requests, while others may be specific to the USB device class that is being implemented. For example, a HID class device needs to be able to respond to "GET REPORT" type of requests. This is not a standard USB chapter 9 request, and therefore not handled by usb_device.c. Instead this request should be handled by class specific firmware, such as that contained in usb_function_hid.c. 

Typical Usage:

void USBCBCheckOtherReq(void)
{
    //Since the stack didn't handle the request I need to check
    //  my class drivers to see if it is for them
    USBCheckMSDRequest();
}

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