LAN8742_GetLinkState() function

LAN8742_STATUS_LINK_DOWN if link is down LAN8742_STATUS_AUTONEGO_NOTDONE if Auto nego not completed LAN8742_STATUS_100MBITS_FULLDUPLEX if 100Mb/s FD LAN8742_STATUS_100MBITS_HALFDUPLEX if 100Mb/s HD LAN8742_STATUS_10MBITS_FULLDUPLEX if 10Mb/s FD LAN8742_STATUS_10MBITS_HALFDUPLEX if 10Mb/s HD LAN8742_STATUS_READ_ERROR if cannot read register LAN8742_STATUS_WRITE_ERROR if cannot write to register