csx_ModifyConfiguration(9Kernel Functions for Drivecsx_ModifyConfiguration(9F)NAMEcsx_ModifyConfiguration - modify socket and PC Card Configuration Reg‐
ister
SYNOPSIS
#include <sys/pccard.h>
int32_t csx_ModifyConfiguration(client_handle_t ch, modify_config_t
*mc);
INTERFACE LEVEL
Solaris DDI Specific (Solaris DDI)
PARAMETERS
ch Client handle returned from csx_RegisterClient(9F).
mc Pointer to a modify_config_t structure.
DESCRIPTION
This function allows a socket and PC Card configuration to be modified.
This function can only modify a configuration requested via
csx_RequestConfiguration(9F).
STRUCTURE MEMBERS
The structure members of modify_config_t are:
uint32_t Socket; /* socket number */
uint32_t Attributes; /* attributes to modify */
uint32_t Vpp1; /* Vpp1 value */
uint32_t Vpp2; /* Vpp2 value */
The fields are defined as follows:
Socket Not used in Solaris, but for portability with other
Card Services implementations, it should be set to the
logical socket number.
Attributes This field is bit-mapped. The following bits are
defined:
CONF_ENABLE_IRQ_STEERING
Enable IRQ steering. Set to connect the PC Card
IREQ line to a previously selected system inter‐
rupt.
CONF_IRQ_CHANGE_VALID
IRQ change valid. Set to request the IRQ steering
enable to be changed.
CONF_VPP1_CHANGE_VALID
Vpp1 change valid. These bits are set to request a
change to the corresponding voltage level for the
PC Card.
CONF_VPP2_CHANGE_VALID
Vpp2 change valid. These bits are set to request a
change to the corresponding voltage level for the
PC Card.
CONF_VSOVERRIDE
Override VS pins. For Low Voltage keyed cards, must
be set if a client desires to apply a voltage inap‐
propriate for this card to any pin. After card
insertion and prior to the first csx_RequestConfig‐
uration(9F) call for this client, the voltage lev‐
els applied to the card will be those specified by
the Card Interface Specification. (See WARNINGS.)
Vpp1, Vpp2 Represent voltages expressed in tenths of a volt. Val‐
ues from 0 to 25.5 volts may be set. To be valid, the
exact voltage must be available from the system. To be
compliant with the PC Card 95 Standard, PCMCIA/JEIDA,
systems must always support 5.0 volts for both Vcc and
Vpp. (See WARNINGS.)
RETURN VALUES
CS_SUCCESS Successful operation.
CS_BAD_HANDLE Client handle is invalid or
csx_RequestConfiguration(9F)
not done.
CS_BAD_SOCKET Error getting/setting socket
hardware parameters.
CS_BAD_VPP Requested Vpp is not available
on socket.
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 ALSOcsx_RegisterClient(9F), csx_ReleaseConfiguration(9F), csx_Relea‐
seIO(9F), csx_ReleaseIRQ(9F), csx_RequestConfiguration(9F), csx_Reques‐
tIO(9F), csx_RequestIRQ(9F)
PC Card 95 Standard, PCMCIA/JEIDA
WARNINGS
1. CONF_VSOVERRIDE is provided for clients that have a need to over‐
ride the information provided in the CIS. The client must exercise
caution when setting this as it overrides any voltage level protec‐
tion provided by Card Services.
2. Using csx_ModifyConfiguration() to set Vpp to 0 volts may result in
the loss of a PC Card's state. Any client setting Vpp to 0 volts is
responsible for insuring that the PC Card's state is restored when
power is re-applied to the card.
NOTES
Mapped IO addresses can only be changed by first releasing the current
configuration and IO resources with csx_ReleaseConfiguration(9F) and
csx_ReleaseIO(9F), requesting new IO resources and a new configuration
with csx_RequestIO(9F), followed by csx_RequestConfiguration(9F).
IRQ priority can only be changed by first releasing the current config‐
uration and IRQ resources with csx_ReleaseConfiguration(9F) and
csx_ReleaseIRQ(9F), requesting new IRQ resources and a new configura‐
tion with csx_RequestIRQ(9F), followed by csx_RequestConfiguration(9F).
Vcc can not be changed using csx_ModifyConfiguration(). Vcc may be
changed by first invoking csx_ReleaseConfiguration(9F), followed by
csx_RequestConfiguration(9F) with a new Vcc value.
SunOS 5.10 19 Jul 1996 csx_ModifyConfiguration(9F)
