struct scsw — subchannel status word
struct scsw {
__u32 key:4;
__u32 sctl:1;
__u32 eswf:1;
__u32 cc:2;
__u32 fmt:1;
__u32 pfch:1;
__u32 isic:1;
__u32 alcc:1;
__u32 ssi:1;
__u32 zcc:1;
__u32 ectl:1;
__u32 pno:1;
__u32 res:1;
__u32 fctl:3;
__u32 actl:7;
__u32 stctl:5;
__u32 cpa;
__u32 dstat:8;
__u32 cstat:8;
__u32 count:16;
}; subchannel key
suspend control
esw format
deferred condition code
format
prefetch
initial-status interruption control
address-limit checking control
suppress-suspended interruption
zero condition code
extended control
path not operational
reserved
function control
activity control
status control
channel program address
device status
subchannel status
residual count