HelenOS sources

NIC_CM_UNKNOWN    387 uspace/app/nic/nic.c 	nic_channel_mode_t duplex = NIC_CM_UNKNOWN;
NIC_CM_UNKNOWN    401 uspace/app/nic/nic.c 	if (duplex == NIC_CM_UNKNOWN) {
NIC_CM_UNKNOWN   1554 uspace/lib/drv/generic/remote_nic.c 	nic_channel_mode_t duplex = NIC_CM_UNKNOWN;