struct_ccw1 (9) - Linux Manuals

struct_ccw1: channel command word

Command to display struct_ccw1 manual in Linux: $ man 9 struct_ccw1

NAME

struct_ccw1 - channel command word

SYNOPSIS

struct ccw1 {
  __u8 cmd_code;
  __u8 flags;
  __u16 count;
  __u32 cda;
};

MEMBERS

cmd_code

: command code

flags

: flags, like IDA addressing, etc.

count

: byte count

cda

: data address

DESCRIPTION

The ccw is the basic structure to build channel programs that perform operations with the device or the control unit. Only Format-1 channel command words are supported.

AUTHOR

Cornelia Huck <cornelia.huck [at] de.ibm.com>

: Author.