'\" t
.\"     Title: struct ccw_dev_id
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: July 2017
.\"    Manual: The ccw bus
.\"    Source: Kernel Hackers Manual 4.11.6
.\"  Language: English
.\"
.TH "STRUCT CCW_DEV_ID" "9" "July 2017" "Kernel Hackers Manual 4\&.11\&" "The ccw bus"
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.SH "NAME"
struct_ccw_dev_id \- unique identifier for ccw devices
.SH "SYNOPSIS"
.sp
.nf
struct ccw_dev_id {
  u8 ssid;
  u16 devno;
};  
.fi
.SH "MEMBERS"
.PP
u8 ssid
.RS 4
subchannel set id
.RE
.PP
u16 devno
.RS 4
device number
.RE
.SH "DESCRIPTION"
.PP
This structure is not directly based on any hardware structure\&. The hardware identifies a device by its device number and its subchannel, which is in turn identified by its id\&. In order to get a unique identifier for ccw devices across subchannel sets,
\fIstruct\fR
ccw_dev_id has been introduced\&.
.SH "AUTHOR"
.PP
\fBCornelia Huck\fR <\&cornelia.huck@de.ibm.com\&>
.RS 4
Author.
.RE
.SH "COPYRIGHT"
.br