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Quell
March 11th, 2005, 09:10 AM
Hello.
Anyone knows how to access outportB on windows NT systems?
I think it has been disabled or something...any ideas what it is?
thx
NoHero
March 11th, 2005, 10:23 AM
Hello.
Anyone knows how to access outportB on windows NT systems?
I think it has been disabled or something...any ideas what it is?
thx

Only 0 privileged code segment (that's only the kernel) can use the outport functions to write data to a specified hardware port. Since you are running in usermode (and that means in privilge step 2) you won't be able to access the hardware. A kernel driver has the access rights to use the out instruction. So write one :)