CB_SOCKET_CTRL_VCCMASK
if ((sockctrl & CB_SOCKET_CTRL_VCCMASK) == 0)
sock_ctrl &= ~CB_SOCKET_CTRL_VCCMASK;
sock_ctrl &= ~CB_SOCKET_CTRL_VCCMASK;
sock_ctrl &= ~CB_SOCKET_CTRL_VCCMASK;
sock_ctrl &= ~CB_SOCKET_CTRL_VCCMASK;