Synopsis:

        buf_handle=sys_bufuse()

Arguments:

      None

Description:    This function returns a handle to one of the pool of 1024 byte buffers which can then be used by the task in the sys_fhread() and sys_fhwrite() functions.

Return Value:

The function will return a unique handle to a 1kb buffer, else wioll return -1 if there are no free bufferes available.