INT 15 - POINTING DEVICE BIOS INTERFACE (PS,DESQview 2.x)
|
Input |
Output |
|
AX
|
C2h |
00h |
Status |
|
AX |
|
BX
|
0=Enable, 1=Dis |
|
|
|
BX |
|
CX
|
|
|
|
|
CX |
|
DX
|
|
|
|
|
DX |
| ES:DI |
|
Set
on Error |
CF |
Enable / Disable
|
Input |
Output |
|
AX
|
C2h |
01h |
Status |
|
AX |
|
BX
|
|
|
Device ID |
|
BX |
|
CX
|
|
|
|
|
CX |
|
DX
|
|
|
|
|
DX |
| ES:DI |
|
Set
on Error |
CF |
Reset
|
Input |
Output |
|
AX
|
C2h |
02h |
Status |
|
AX |
|
BX
|
Sampling
Rate |
|
|
|
BX |
|
CX
|
|
|
|
|
CX |
|
DX
|
|
|
|
|
DX |
| ES:DI |
|
Set
on Error |
CF |
Set Sampling Rate
Sampling Rates:
00h = 10/second
01h = 20/second
02h = 40/second
03h = 60/second
04h = 80/second
05h = 100/second
06h = 200/second
|
Input |
Output |
|
AX
|
C2h |
03h |
Status |
|
AX |
|
BX
|
Resolution |
|
|
|
BX |
|
CX
|
|
|
|
|
CX |
|
DX
|
|
|
|
|
DX |
| ES:DI |
|
Set
on Error |
CF |
Set Resolution
Resolutions:
00h = One count per mm
01h = Two counts per mm
02h = Four counts per mm
03h = Eight counts per mm
|
Input |
Output |
|
AX
|
C2h |
04h |
Status |
|
AX |
|
BX
|
|
|
Device ID |
|
BX |
|
CX
|
|
|
|
|
CX |
|
DX
|
|
|
|
|
DX |
| ES:DI |
|
Set
on Error |
CF |
Get Type
|
Input |
Output |
|
AX
|
C2h |
05h |
Status |
|
AX |
|
BX
|
Data Pack
Size |
|
|
|
BX |
|
CX
|
|
|
|
|
CX |
|
DX
|
|
|
|
|
DX |
| ES:DI |
|
Set
on Error |
CF |
Initialize
Data Package Size = 1 - 8 bytes
|
Input |
Output |
|
AX
|
C2h |
06h |
Status |
|
AX |
|
BX
|
00h |
|
|
Device Status |
BX |
|
CX
|
|
|
|
Resolution |
CX |
|
DX
|
|
|
|
Sample Rate |
DX |
| ES:DI |
|
Set
on Error |
CF |
Return Device Status
| Device
Status |
| Bit |
Dec |
Hex |
Description |
| 0 |
1 |
01h |
Right button pressed |
| 1 |
2 |
02h |
Reserved |
| 2 |
4 |
04h |
Left button pressed |
| 3 |
8 |
08h |
Reserved |
| 4 |
16 |
10h |
Scaling: 0 =
1:1, 1 = 2:1 |
| 5 |
32 |
20h |
Device enabled |
| 6 |
64 |
40h |
Mode: 0 =
Stream, 1 = Remote |
| 7 |
128 |
80h |
Reserved |
|
Input |
Output |
|
AX
|
C2h |
06h |
Status |
|
AX |
|
BX
|
01h |
|
|
Device Status |
BX |
|
CX
|
|
|
|
Resolution |
CX |
|
DX
|
|
|
|
Sample Rate |
DX |
| ES:DI |
|
Set
on Error |
CF |
Set scaling at 1:1
|
Input |
Output |
|
AX
|
C2h |
06h |
Status |
|
AX |
|
BX
|
02h |
|
|
Device Status |
BX |
|
CX
|
|
|
|
Resolution |
CX |
|
DX
|
|
|
|
Sample Rate |
DX |
| ES:DI |
|
Set
on Error |
CF |
Set scaling at 2:1
|
Input |
Output |
|
AX
|
C2h |
07h |
Status |
|
AX |
|
|
|
|
|
|
BX |
|
CX
|
|
|
|
|
CX |
|
DX
|
|
|
|
|
DX |
| ES:BX |
User
Device Handler |
Set
on Error |
CF |
Set Device Handler Address
Status Codes:
00h = Successful
01h = Invalid function
02h = Invalid input
03h = Interface error
04h = Need to resend
05h = No device handler installed |