_HID_USAGE Struct Reference

#include <hid.h>

Data Fields
uint16_t	page
	The usage page this usage refers to.
uint16_t	usage
	The usage within the usage page.
uint16_t	count
	The total number of sequential usages where Usage represents the minimum value or 1 for a single usage (Usage range is from Usage to Usage + Count - 1).
uint32_t	index
	The index of this usage in the report (First usage is 0).
uint32_t	stringindex
	The string index for this usage.
uint32_t	stringcount
	The total number of sequential string index values where string index represents the minimum value or 1 for a single string.
uint32_t	designatorindex
	The designator index for this usage.
uint32_t	designatorcount
	The total number of sequential designator index values where designator index represents the minimum value or 1 for a single designator.
int32_t	logicalminimum
	The logical minimum value for this usage.
int32_t	logicalmaximum
	The logical maximum value for this usage.
int32_t	physicalminimum
	The physical minimum value for this usage (in Units).
int32_t	physicalmaximum
	The physical maximum value for this usage (in Units).
uint32_t	unittype
	The unit type for this usage.
uint32_t	unitexponent
	The unit exponent index for this usage.
HID_USAGE *	aliases
	The list of aliased usages for this control (See Delimiters in Section 6.2.2.8).
uint32_t	aliascount
	The number of aliased usages contained for this control.
HID_REPORT *	report
	The report this usage belongs to.

Field Documentation

page

uint16_t page

The usage page this usage refers to.

usage

uint16_t usage

The usage within the usage page.

count

uint16_t count

The total number of sequential usages where Usage represents the minimum value or 1 for a single usage (Usage range is from Usage to Usage + Count - 1).

index

uint32_t index

The index of this usage in the report (First usage is 0).

stringindex

uint32_t stringindex

The string index for this usage.

stringcount

uint32_t stringcount

The total number of sequential string index values where string index represents the minimum value or 1 for a single string.

designatorindex

uint32_t designatorindex

The designator index for this usage.

designatorcount

uint32_t designatorcount

The total number of sequential designator index values where designator index represents the minimum value or 1 for a single designator.

logicalminimum

int32_t logicalminimum

The logical minimum value for this usage.

logicalmaximum

int32_t logicalmaximum

The logical maximum value for this usage.

physicalminimum

int32_t physicalminimum

The physical minimum value for this usage (in Units).

physicalmaximum

int32_t physicalmaximum

The physical maximum value for this usage (in Units).

unittype

uint32_t unittype

The unit type for this usage.

unitexponent

uint32_t unitexponent

The unit exponent index for this usage.

aliases

HID_USAGE* aliases

The list of aliased usages for this control (See Delimiters in Section 6.2.2.8).

aliascount

uint32_t aliascount

The number of aliased usages contained for this control.

report

HID_REPORT* report

The report this usage belongs to.

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The documentation for this struct was generated from the following file:

• ultibo/hid.h