Scroll to navigation

WRITE_ZSREG(9) Internal Functions WRITE_ZSREG(9)

NAME

write_zsreg - Write to a Z8530 channel register

SYNOPSIS

void write_zsreg(struct z8530_channel * c, u8 reg, u8 val);

ARGUMENTS

struct z8530_channel * c

The Z8530 channel

u8 reg

Register number

u8 val

Value to write

DESCRIPTION

Write a value to an indexed register. The caller must hold the lock to honour the irritating delay rules. We know about register 0 being fast to access.

Assumes c->lock is held.

AUTHOR

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

Author.

COPYRIGHT

September 2017 Kernel Hackers Manual 4.12