Function usleep

components/libc/posix/delay/delay.c:103–116

* @brief Delays the execution of the current thread for the specified number of microseconds. * * @param usec The number of microseconds to sleep. * * @return Returns 0 on success. */

 * @return   Returns 0 on success.
 */
int usleep(useconds_t usec)
{
    if (rt_thread_self() != RT_NULL)
    {
        msleep(usec / 1000u);
        udelay(usec % 1000u);
    }
    else  /* scheduler has not run yet */
    {
        udelay(usec);
    }

    return 0;
}
RTM_EXPORT(usleep);