Fast I/O Function Codes and Modifiers

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HP OpenVMS I/O User's Reference Manual

I/O Function Codes

Local Area Network Device Drivers

Fast Path Function Code and Modifiers

Fast I/O FunctionCodes and Modifiers

This section lists the function codes and parameters for the$IO_SETUP system service.

Functions Arguments

IO$_READVBLK IO$_READLBLK IO$_WRITEVBLK IO$_WRITELBLK
bufobj - user's buffer

iosobj -- I/OStatus Area (IOSA)

astadr -- Completion ASTroutine

flags -- longword mask

return_fandle -- fandleaddress

Functions	Arguments
IO$_READVBLK IO$_READLBLK IO$_WRITEVBLK IO$_WRITELBLK	bufobj - user's buffer iosobj -- I/OStatus Area (IOSA) astadr -- Completion ASTroutine flags -- longword mask return_fandle -- fandleaddress

Local Area Network Device Drivers

Fast Path Function Code and Modifiers