You could do trial and error, as it is not likely that the touchpad driver from the wrong manufacturer will install. :)
From an etaf (Wayne) post:
How to identify hardware in Device Manager
right click on the device with a yellow!
from the menu choose
properties
Click on the Details Tab
Under the Property - drop down
Select hardware ids
Right click and select all
Then right click again and select copy
Copy and paste that information here
You should see a code similar to this
PCI\VEN_8086&DEV_008A&SUBSYS_53058086&REV_34
please reply with the full code for your device(s)
The portion of the code highlighted in RED is the Vendor ID and the portion highlighted in GREEN is the Device ID. In this example:
PCI\VEN_8086&DEV_008A&SUBSYS_53058086&REV_34
Vendor ID = 8086
Device ID = 008A
Post back those two numbers make sure we know which is vendor ID and which is device ID
These codes can be looked up at this site http://www.pcidatabase.com/
As an example the link for that database tells us that;
Vendor ID code 8086 is for this vendor - Intel Corporation
Device ID code 008A is for this device - Intel Centrino Wireless-N1030
------------------------------------------------------------------------
From an etaf (Wayne) post:
How to identify hardware in Device Manager
right click on the device with a yellow!
from the menu choose
properties
Click on the Details Tab
Under the Property - drop down
Select hardware ids
Right click and select all
Then right click again and select copy
Copy and paste that information here
You should see a code similar to this
PCI\VEN_8086&DEV_008A&SUBSYS_53058086&REV_34
please reply with the full code for your device(s)
The portion of the code highlighted in RED is the Vendor ID and the portion highlighted in GREEN is the Device ID. In this example:
PCI\VEN_8086&DEV_008A&SUBSYS_53058086&REV_34
Vendor ID = 8086
Device ID = 008A
Post back those two numbers make sure we know which is vendor ID and which is device ID
These codes can be looked up at this site http://www.pcidatabase.com/
As an example the link for that database tells us that;
Vendor ID code 8086 is for this vendor - Intel Corporation
Device ID code 008A is for this device - Intel Centrino Wireless-N1030
------------------------------------------------------------------------