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AIXLink/X.25 1.1 for AIX: Guide and Reference

X25_DIAG_IO_WRITE (Write to Register) x25sioctl Operation


Writes to an I/O register on the X.25 Interface Co-Processor/2.


Note: Only a process that has opened the device for diagnostics can call this process.

The X25_DIAG_IO_WRITE x25sioctl operation writes to an I/O register on the X.25 Interface Co-Processor/2. Both direct and indirect registers can be written to as the card pointer register is adjusted by this operation.

Execution Environment

The X25_DIAG_IO_WRITE operation can be called from the process environment only.

Return Values

A return code of -1 indicates an unsuccessful operation. If -1 is returned, the kernel sets the errno global variable to one of the following values:

EACCES The channel was not opened in diagnostic mode.
ENXIO The operation attempted to read a card that was not configured.

Implementation Specifics

The X25_DIAG_IO_WRITE operation functions with an X.25 Interface Co-Processor/2 that has been correctly configured for use on a qualified network. Consult adapter specifications for more information on configuring the adapter and network qualifications.

Related Information

The X25_DIAG_IO_READ x25sioctl operation, X25_DIAG_MEM_READ x25sioctl operation, X25_DIAG_MEM_WRITE x25sioctl operation, X25_DIAG_TASK x25sioctl operation.

The x25sioctl entry point.

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