.TH "read_zsreg" 9 "read_zsreg" "25 May 1998" "Kernel Hacker's Manual" LINUX
.SH NAME
read_zsreg \-  Read a register from a Z85230 
.SH SYNOPSIS
.B "u8" read_zsreg
.BI "(struct z8530_channel *" c ","
.BI "u8 " reg ");"
.SH ARGUMENTS
.IP "c" 12
 Z8530 channel to read from (2 per chip)
.IP "reg" 12
 Register to read
.SH "FIXME"
 Use a spinlock.

Most of the Z8530 registers are indexed off the control registers.
A read is done by writing to the control register and reading the
register back.  The caller must hold the lock