th1520_mbox_chan_read
val = th1520_mbox_chan_read(cp, off, is_remote);
*arg = th1520_mbox_chan_read(cp, off, is_remote);
info0_data = th1520_mbox_chan_read(cp, TH_1520_MBOX_INFO0, false);
info7_data = th1520_mbox_chan_read(cp, TH_1520_MBOX_INFO7, false);