STRUCT
CCW1(9) The ccw bus STRUCT CCW1(9)
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@de.ibm.com>
Author.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 STRUCT CCW1(9)
