Sets mouse scale factor.
#include <sys/inputdd.h>
int ioctl
(FileDescriptor, MSCALE, Arg)
int FileDescriptor;
uint * Arg;
The MSCALE ioctl subroutine call provides a course/fine tracking response. The reported horizontal and vertical movement is converted as follows:
| Real Value | 1:1 Scale | 2:1 Scale |
|---|---|---|
| 0 | 0 | 0 |
| 1 | 1 | 1 |
| 2 | 2 | 1 |
| 3 | 3 | 3 |
| 4 | 4 | 6 |
| 5 | 5 | 9 |
| N | N | N x 2 |
| where N >= 6 |
The default scale factor is 1:1.
| Item | Description |
|---|---|
| FileDescriptor | Specifies the open file descriptor for the mouse. |
| Arg | Specifies the address of an integer where value is one of
the following values: |