Messages in this thread | | | From | (Alan Cox) | Subject | Re: user space writel() etc. in 2.2.2 | Date | Fri, 5 Mar 1999 14:29:20 +0000 (GMT) |
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> 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.
Those macros arent usable in their native form
> 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 ?
mmio space by using mmap() as with 2.0, and pc style io space with inb inw etc (which are exported with __KERNEL__ not defined)
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