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 Copyright (c) 1996, Sun Microsystems, Inc. All Rights Reserved
 The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License.
 You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
 When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
 CSX_RELEASECONFIGURATION 9F "Jul 19, 1996"
 NAME
csx_ReleaseConfiguration - release PC Card and socket configuration

 SYNOPSIS
#include <sys/pccard.h>



int32_t csx_ReleaseConfiguration(client_handle_t ch, release_config_t *rc);




 INTERFACE LEVEL
illumos DDI Specific (illumos DDI)

 PARAMETERS
ch 


Client handle returned from csx_RegisterClient(9F).



rc 


Pointer to a release_config_t structure.




 DESCRIPTION
This function returns a PC Card and socket to a simple memory only
interface and sets the card to configuration zero by writing a 0 to the
PC card's COR (Configuration Option Register).


Card Services may remove power from the socket if no clients have indicated
their usage of the socket by an active csx_RequestConfiguration(9F) or
csx_RequestWindow(9F).


Card Services is prohibited from resetting the PC Card and is not
required to cycle power through zero (0) volts.


After calling csx_ReleaseConfiguration() any resources requested via the
request functions csx_RequestIO(9F), csx_RequestIRQ(9F), or
csx_RequestWindow(9F) that are no longer needed should be returned to
Card Services via the corresponding csx_ReleaseIO(9F),
csx_ReleaseIRQ(9F), or csx_ReleaseWindow(9F) functions.
csx_ReleaseConfiguration() must be called to release the current card and
socket configuration before releasing any resources requested by the driver via
the request functions named above.

 STRUCTURE MEMBERS
The structure members of release_config_t are:

uint32_t Socket; /* socket number */





The Socket field is not used in illumos, but for portability with other
Card Services implementations, it should be set to the logical socket number.

 RETURN VALUES
CS_SUCCESS 


Successful operation.



CS_BAD_HANDLE 


Client handle is invalid or csx_RequestConfiguration(9F) not done.



CS_BAD_SOCKET 


Error getting or setting socket hardware parameters.



CS_NO_CARD 


No PC card in socket.



CS_UNSUPPORTED_FUNCTION 


No PCMCIA hardware installed.




 CONTEXT
This function may be called from user or kernel context.

 SEE ALSO
 csx_RegisterClient (9F),  csx_RequestConfiguration (9F),  csx_RequestIO (9F),  csx_RequestIRQ (9F),  csx_RequestWindow (9F) 

PC Card 95 Standard, PCMCIA/JEIDA