Socket implementation differences Post: 71156

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LEARN ABOUT SUNOS

csx_releaseconfiguration

csx_ReleaseConfiguration(9F)				   Kernel Functions for Drivers 			      csx_ReleaseConfiguration(9F)

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

       Solaris DDI Specific (Solaris 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_RequestConfigura-
       tion(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_Relea-
       seIRQ(9F),  or csx_ReleaseWindow(9F) functions. csx_ReleaseConfiguration() must be called to release the current card and socket configura-
       tion 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 Solaris, 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

SunOS 5.10							    19 Jul 1996 				      csx_ReleaseConfiguration(9F)

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