.TH "z8530_status" 9 "z8530_status" "25 May 1998" "Kernel Hacker's Manual" LINUX
.SH NAME
z8530_status \-  Handle a PIO status exception
.SH SYNOPSIS
.B "void" z8530_status
.BI "(struct z8530_channel *" chan ");"
.SH ARGUMENTS
.IP "chan" 12
 Z8530 channel to process
.SH "DESCRIPTION"
A status event occurred in PIO synchronous mode. There are several
reasons the chip will bother us here. A transmit underrun means we
failed to feed the chip fast enough and just broke a packet. A DCD
change is a line up or down. We communicate that back to the protocol
layer for synchronous PPP to renegotiate.