SVR5 and SCO OpenServer 5

M_COPYIN(D7str)

M_COPYIN -- request a copyin operation

Description

M_COPYIN is generated by a module or driver and sent upstream to request that the Stream head perform a copyin(D3) for the module or driver. It is valid only after receiving an M_IOCTL(D7str) message and before an M_IOCACK(D7str) M_IOCNAK(D7str) message.

The message format is one M_COPYIN message block containing a copyreq(D4str) structure.

This message should not be queued by a module or driver unless it intends to process the data for the ioctl( ).

Message type

Priority.

Version applicability

ddi: 1, 2, 3, 4, 5, 5mp, 6, 6mp, 7, 7mp, 7.1, 7.1mp, 8, 8mp
oddi: 1, 2, 2mp, 3, 3mp, 4, 4mp, 5, 5mp

Differences between versions

This message type is identical in DDI and ODDI, but note the differences in the copyreq(D4str) structure between the two interfaces.

References

copyreq(D4str), M_COPYOUT(D7str), M_IOCACK(D7str), M_IOCDATA(D7str), M_IOCNAK(D7str), streamio

``STREAMS ioctls'' in HDK Technical Reference