[lwip-users] Low level interface

[yh]

Hello,

I've read the document, but sorry I am still not clear about the low level
interface. I try to link the lwip stack to a backplane bus device driver.
The backplane bus device driver has a read and a write functions, which
interface in lwip I can use to transmit packers to backplane device driver
write function  and to receive packets from backplane device driver read
function?

Thank you.

Jim