struct_ccw_dev_id (9) Linux Manual Page
struct_ccw_dev_id – unique identifier for ccw devices
Synopsis
struct ccw_dev_id {
u8 ssid;
u16 devno;
};Members
ssid
- subchannel set id
devno
- device number
Description
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, struct ccw_dev_id has been introduced.
Author
Cornelia Huck <cornelia.huck [at] de.ibm.com>
- Author.