lombus_cmd
(void) lombus_cmd(hdlp, ADDR_TO_VREG(addr), val, LOMBUS_CMD_WRITE);
(void) lombus_cmd(hdlp, 0, 0, LOMBUS_CMD_NOP);
(void) lombus_cmd(hdlp, 0, 0, LOMBUS_CMD_NOP);
return (lombus_cmd(hdlp, ADDR_TO_VREG(addr), 0, LOMBUS_CMD_READ));