NIO CommKit Host Interface Installation and System Administration Manual

DKXQT(7) DKXQT(7)

E-92 CommKit Host Interface, Release 4.0

NAME

dkxqt – remote execution character special device

DESCRIPTION

dkxqt is a character special device that provides processes with an interface that implements the remote

execution protocol of the CommKit Host Interface. This interface is used on the remote end of a remote login

or remote execution circuit. It cannot be used to originate calls.

The routines within the dkxqt driver are the following:

dkxopen() Opens a channel of an incoming call for remote execution.

dkxclose() Closes and takes down the channel for remote execution.

dkxread() Reads from the calling process. This routine puts together a read request, sends it to the

calling host and waits for a reply indicating the amount of real data to be received over the

channel. It then reads in the data and returns to the user process.

dkxwrite() Writes to the calling process. This routine first sends a write request, then sends the data

to the calling host. It then waits for a reply message indicating the amount of data written.

It returns this amount to the user process.

dkxioctl() Send ioctl commands to the calling host. This routine sends an ioctl request followed by the

data to the calling host and waits for a response. It also reads any data transmitted from the

calling host and returns this to the user process.

FILES

/dev/dkx/xqt Common Signaling Channel device for the interface

/dev/dkx/intf.chan individual remote execution devices