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96 SunATM 3U CompactPCI Adapter Installation and User’s Guide • February 2001

Connecting, Sending, and Receiving

Data with the ATM Device Driver

Connecting to the ATM device driver involves several steps, some of which include

several ioctl calls. To create a more standardized interface for user space

applications, a set of atm_util functions is available to application writers. An

overview of those functions is provided in

TABLE C-4. For more detailed information,

refer to the atm_util(3) man page. The ma(7) man page contains a more detailed

discussion of the driver-supported ioctls.

TABLE C-4 atm_util Function Overview

Name Functionality Kernel Equivalent

atm_open Opens a stream to the ATM device driver Must be done by a user space setup

program

atm_close Closes a stream to the ATM device driver Must be done by a user space setup

program

atm_attach Attaches to a physical interface Must be done by a user space setup

program

atm_detach Detaches from a physical interface Must be done by a user space setup

program

atm_bind Binds to a Service Access Point send DL_BIND_REQ

atm_unbind Unbinds from a Service Access Point send DL_UNBIND_REQ

atm_setraw Sets the encapsulation mode to raw Send DLIOCRAW

atm_add_vpci Associates a vpci with this connection A_ADDVC ioctl

atm_delete_vpci Dissociates a vpci from this connection A_DELVC ioctl

atm_allocate_bw Allocates constant bit rate bandwidth for

this connection

A_ALLOCBW ioctl

atm_allocate_cbr_bw Allocates constant bit rate bandwidth

with more granularity than

atm_allocate_bw

A_ALLOCBW_CBR ioctl

atm_allocate_vbr_bw Allocates variable bit rate bandwidth A_ALLOCBW_VBR ioctl

atm_release_bw Releases previously allocated bandwidth A_RELSE_BW ioctl

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Sun-microsystems 3U Bedienungsanleitung Seite 118