'\" t
.\"     Title: struct ccw1
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: June 2017
.\"    Manual: The ccw bus
.\"    Source: Kernel Hackers Manual 4.11.3
.\"  Language: English
.\"
.TH "STRUCT CCW1" "9" "June 2017" "Kernel Hackers Manual 4\&.11\&" "The ccw bus"
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.SH "NAME"
struct_ccw1 \- channel command word
.SH "SYNOPSIS"
.sp
.nf
struct ccw1 {
  __u8 cmd_code;
  __u8 flags;
  __u16 count;
  __u32 cda;
};  
.fi
.SH "MEMBERS"
.PP
__u8 cmd_code
.RS 4
command code
.RE
.PP
__u8 flags
.RS 4
flags, like IDA addressing, etc\&.
.RE
.PP
__u16 count
.RS 4
byte count
.RE
.PP
__u32 cda
.RS 4
data address
.RE
.SH "DESCRIPTION"
.PP
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\&.
.SH "AUTHOR"
.PP
\fBCornelia Huck\fR <\&cornelia.huck@de.ibm.com\&>
.RS 4
Author.
.RE
.SH "COPYRIGHT"
.br