How to Set Serial Ports to Share IRQ?

[Ann]

There are two share IRQ serial ports, COM3&COM4 ,on my hardware. COM3&COM4
use Microsoft serial port driver.After FBA, I have to set COM3&COM4 to share
IRQ manually using following steps:
1. delete COM3&COM4 from DeviceManager;
2. open "Add Hardware Wizard",next,...(following the wizard steps),when the
"finish"icon appears,set COM3 base address and IRQ, finish;
3. same as 2, set COM4 base address and IRQ, finish;
4. Reboot.

My question is : Could the above steps be realized automatically during FBA?

Could anybody give some hints?

Thanks and Best Regards,

Ann

 

[Kesavan]

If you believe this could happen with the Registry changes then I
guess it should ease your task .For that you might need to track the
procedure manually and test it whether it works for you by having
those registry changes done via component.
If its ok after the FBA phase and before the Restart then you may very
well include a batch file that does this task explicitely on the
desktop through scripts.

 

[Brad Combs]

Ann,

Although I havent done this personally, I'm sure you could use devcon to
workaround this. Create a component containing an FBA Genereic Request
calling cmd.exe /c c:\devcon.exe update <path to inf> <hardware id>. I think
you can pass more variables to it to specify the IRQ and base address. Heres
a link to information about devcon....

http://support.microsoft.com/default.aspx?scid=kb;en-us;311272

HTH,

Brad Combs
Imago Technologies