ccw1 Struct Reference

#include <cio.h>

Data Fields
__u8	cmd_code
__u8	flags
__u16	count
__u32	cda

Detailed Description

struct ccw1 - channel command word : command code : flags, like IDA addressing, etc. : byte count : data address

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.

Definition at line 28 of file cio.h.

Field Documentation

__u32 cda

Definition at line 32 of file cio.h.

__u8 cmd_code

Definition at line 29 of file cio.h.

__u16 count

Definition at line 31 of file cio.h.

__u8 flags

Definition at line 30 of file cio.h.

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The documentation for this struct was generated from the following file:

• arch/s390/include/asm/cio.h