#include <rl_usb.h>

BOOL usbh_init_all (void);

The usbh_init_all function initializes the USB Host Stack and all of the enabled USB Host Controllers Hardware. It prepares the USB Host Controllers to detect connection or disconnection of a device on the bus and do enumeration of connected device. In any application, the usbh_init_all or usbh_init function must be called before calling any other USB Host function. The function does not initialize any non-USB Host hardware features.

The usbh_init_all function is part of the RL-USB Host Software Stack.

The usbh_init_all function returns one of the following manifest constants.

• __TRUE
  Success.
• __FALSE
  Indicates that function has failed. Function usbh_get_last_error can be called to determine reason of function failure.

usbh_engine, usbh_engine_all, usbh_get_error_string, usbh_get_last_error, usbh_init, usbh_uninit, usbh_uninit_all

#include <rl_usb.h>

int main (void)  {
  ..

  usbh_init_all();            // USB Hosts Initialize
  ..
}