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 adressing, 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.