Function uart_irq_callback_set 

pub unsafe extern "C" fn uart_irq_callback_set(
    dev: *const device,
    cb: uart_irq_callback_user_data_t,
) -> c_int

@brief Set the IRQ callback function pointer (legacy).

This sets up the callback for IRQ. When an IRQ is triggered, the specified function will be called with the device pointer.

@param dev UART device instance. @param cb Pointer to the callback function.

@retval 0 on success. @retval -ENOSYS This function is not implemented. @retval -ENOTSUP API is not enabled.