>> in the io.h file functions to read/write IO memory
>> (writel(),readl() etc.) are only defined with __KERNEL__ macro
>> defined. Under 2.0.36 that was not the case.
Alan> Those macros arent usable in their native form
Which is believe is a problem!
>> I don't like setting __KERNEL__ for user space allications, besides
>> it produces a lot of errors when I try to compile.
>>
>> Q: what is the right way to access IO memory under 2.2.2 ?
Alan> mmio space by using mmap() as with 2.0, and pc style io space
Alan> with inb inw etc (which are exported with __KERNEL__ not
Alan> defined)
Alpha + sparse memory + mmap'ed frame buffer + mmap'ed control
registers.
I am not that familiar with the sparse mem but I doubt mmap() has a
kludge to get around it (I found out the hard way why readl/writel is
needed when porting the AceNIC driver to run an Avanti).
Jes
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