SYSC_CFGA_CMD_DISCONNECT
case SYSC_CFGA_CMD_DISCONNECT:
if (ioctl(fd, SYSC_CFGA_CMD_DISCONNECT, sc) == -1)
case SYSC_CFGA_CMD_DISCONNECT:
case SYSC_CFGA_CMD_DISCONNECT:
case SYSC_CFGA_CMD_DISCONNECT: