Technical Reference: Kernel and Subsystems, Volume 2

MSAMPLERATE (Set Mouse Sample Rate)

Purpose

Sets mouse sample rate.

Syntax

#include <sys/inputdd.h> int ioctl (FileDescriptor, MSAMPLERATE, Arg)
int FileDescriptor;
uint *Arg;

Description

The MSAMPLERATE ioctl subroutine call specifies the maximum number of mouse events that are reported per second.

The default sample rate is 100 samples per second.

Parameters

FileDescriptor

Specifies the open file descriptor for the mouse.

Arg

Specifies the address of an integer where value is one of the following values:

#define MSR10     1     /* 10 samples per second     */
#define MSR20     2     /* 20 samples per second     */
#define MSR40     3     /* 40 samples per second     */
#define MSR60     4     /* 60 samples per second     */
#define MSR80     5     /* 80 samples per second     */
#define MSR100    6     /* 100 samples per second    */
#define MSR200    7     /* 200 samples per second    */