CSX_CONVERTSPEED(9F) Kernel Functions for Drivers CSX_CONVERTSPEED(9F)
csx_ConvertSpeed - convert device speeds
#include <sys/pccard.h>
int32_t csx_ConvertSpeed(convert_speed_t *cs);
illumos DDI Specific (illumos DDI)
cs
Pointer to a convert_speed_t structure.
This function is an illumos-specific extension that provides a method
for clients to convert from one type of device speed representation
to another, that is, from devspeed format to nS and vice versa.
The structure members of convert_speed_t are:
uint32_t Attributes;
uint32_t nS;
uint32_t devspeed;
The fields are defined as follows:
Attributes
This is a bit-mapped field that identifies the type of
speed conversion to be performed. The field is defined
as follows:
CONVERT_NS_TO_DEVSPEED
Converts nS to devspeed
format
CONVERT_DEVSPEED_TO_NS
Converts devspeed format to
nS
nS
If CONVERT_NS_TO_DEVSPEED is set, the value in the nS
field is converted to a devspeed format and returned
in the devspeed field.
devspeed
If CONVERT_DEVSPEED_TO_NS is set, the value in the
devspeed field is converted to an nS value and
returned in the nS field.
CS_SUCCESS
Successful operation.
CS_BAD_SPEED
Invalid nS or devspeed.
CS_BAD_ATTRIBUTE
Bad Attributes value.
CS_UNSUPPORTED_FUNCTION
No PCMCIA hardware installed.
This function may be called from user or kernel context.
csx_ModifyWindow(9F), csx_RequestWindow(9F)
PC Card 95 Standard, PCMCIA/JEIDA
July 19, 1996 CSX_CONVERTSPEED(9F)
NAME
csx_ConvertSpeed - convert device speeds
SYNOPSIS
#include <sys/pccard.h>
int32_t csx_ConvertSpeed(convert_speed_t *cs);
INTERFACE LEVEL
illumos DDI Specific (illumos DDI)
PARAMETERS
cs
Pointer to a convert_speed_t structure.
DESCRIPTION
This function is an illumos-specific extension that provides a method
for clients to convert from one type of device speed representation
to another, that is, from devspeed format to nS and vice versa.
STRUCTURE MEMBERS
The structure members of convert_speed_t are:
uint32_t Attributes;
uint32_t nS;
uint32_t devspeed;
The fields are defined as follows:
Attributes
This is a bit-mapped field that identifies the type of
speed conversion to be performed. The field is defined
as follows:
CONVERT_NS_TO_DEVSPEED
Converts nS to devspeed
format
CONVERT_DEVSPEED_TO_NS
Converts devspeed format to
nS
nS
If CONVERT_NS_TO_DEVSPEED is set, the value in the nS
field is converted to a devspeed format and returned
in the devspeed field.
devspeed
If CONVERT_DEVSPEED_TO_NS is set, the value in the
devspeed field is converted to an nS value and
returned in the nS field.
RETURN VALUES
CS_SUCCESS
Successful operation.
CS_BAD_SPEED
Invalid nS or devspeed.
CS_BAD_ATTRIBUTE
Bad Attributes value.
CS_UNSUPPORTED_FUNCTION
No PCMCIA hardware installed.
CONTEXT
This function may be called from user or kernel context.
SEE ALSO
csx_ModifyWindow(9F), csx_RequestWindow(9F)
PC Card 95 Standard, PCMCIA/JEIDA
July 19, 1996 CSX_CONVERTSPEED(9F)