centos man page for read_zsreg

READ_ZSREG(9)							Internal Functions						     READ_ZSREG(9)

NAME
       read_zsreg - Read a register from a Z85230

SYNOPSIS
       u8 read_zsreg(struct z8530_channel * c, u8 reg);

ARGUMENTS
       c
	   Z8530 channel to read from (2 per chip)

       reg
	   Register to read

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

AUTHOR
       Alan Cox <alan@lxorguk.ukuu.org.uk>
	   Author.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							     READ_ZSREG(9)