TM4C123GH6PM: USBHIDInit seems to fail when following the USB library (rev. e)

Ayrton Leyssens said:

There it calls  'USBDHIDMouseInit'... although the struct expected is not a tUSBDHIDDevice...

What do you mean the struct expected is not a tUSBDHIDDevice? There is a HID Keyboard example at C:\ti\TivaWare_C_Series-2.2.0.295\examples\boards\ek-tm4c123gxl\usb_dev_keyboard. You can reference the HID keyboard example as a starting point and modify for HID mouse since both are HID devices. 

On page 85, it says:

From your main initialization function call the HID device class driver initialization function to
configure the USB controller and place the device on the bus.

pvDevice = USBDHIDMouseInit(0, &g_sHIDMouseDevice);

If you look at sHIDMouseDevice that is defined starting at page 83, it is a HID mouse. 

const tUSBDHIDDevice g_sHIDMouseDevice =
{
//
// The Vendor ID you have been assigned by USB-IF.
//
USB_VID_YOUR_VENDOR_ID,
//

// The product ID you have assigned for this device.
//
USB_PID_YOUR_PRODUCT_ID,
//
// The power consumption of your device in milliamps.
//
POWER_CONSUMPTION_MA,
//
// The value to be passed to the host in the USB configuration descriptor’s
// bmAttributes field.
//
USB_CONF_ATTR_BUS_PWR,
//
// This mouse supports the boot subclass.
//
USB_HID_SCLASS_BOOT,
//
// This device supports the BIOS mouse report protocol.
//
USB_HID_PROTOCOL_MOUSE,
//
// The device has a single input report.
//
1,
//
// A pointer to our array of tHIDReportIdle structures. For this device,
// the array must have 1 element (matching the value of the previous field).
//
g_psMouseReportIdle,
//
// A pointer to your receive callback event handler.
//
YourUSBReceiveEventCallback,
//
// A value that you want passed to the receive callback alongside every
// event.
//
(void *)&g_sYourInstanceData,
//
// A pointer to your transmit callback event handler.
//
YourUSBTransmitEventCallback,
//
// A value that you want passed to the transmit callback alongside every
// event.
//
(void *)&g_sYourInstanceData,
//
// This device does not want to use a dedicated interrupt OUT endpoint
// since there are no output or feature reports required.
//
false,
//
// A pointer to the HID descriptor for the device.

//
&g_sMouseHIDDescriptor,
//
// A pointer to the array of HID class descriptor pointers for this device.
// The number of elements in this array and their order must match the
// information in the HID descriptor provided above.
//
g_pMouseClassDescriptors,
//
// A pointer to your string table.
//
g_pStringDescriptors,
//
// The number of entries in your string table. This must equal
// (1 + (5 + (num HID strings)) * (num languages)).
//
NUM_STRING_DESCRIPTORS
};