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 OmniOS