| STRUCT CCW1(9) | The ccw bus | 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.
COPYRIGHT¶
| May 2024 | Kernel Hackers Manual 2.6. |