Specifications

AMD Geode™ GeodeROM Functional Specification 157
System Services
32087C
12.1.13.2 Subfunction 01h - Reset Pointing Device
Description:
Resets the pointing device: IRQ 12 is unmasked, the interface is disabled, the pointing device is reset (command FFh),
and if found successfully, bit 4 of the equipment determination WORD in the BDA (40:10) is set.
Passed:
Returns:
Related Functions:
None.
12.1.13.3 Subfunction 02h - Set Sample Rate
Description:
Sets the sample rate for the pointing device. Note that if an invalid sample rate is passed, the return status reflects
invalid input. Sending the F3h command to the device, followed by the rate value sets the sample.
Passed:
Returns:
Related Functions:
None.
Parameter Description
AH C201h
Parameter Description
CF 0 = Success
1 = Failure
BH Device ID
BL Value returned by pointing device (AAh if device is a mouse)
AH Status code:
See "Subfunction 00h: - Enable/Disable Pointing Device" on page 156
Parameter Description
AH C202h
BH Sample rate:
00h = 10 samples/second
01h = 20/second
02h = 40/second
03h = 60/second
04h = 80/second
05h = 100/second
06h = 200/second
Parameter Description
CF 0 = Success
1 = Failure
AH Status code:
See "Subfunction 00h: - Enable/Disable Pointing Device" on page 156