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Shawn wrote:
> hello guys,
> I got a newbie confused when I was looking into the source code of
> s3c2440's RTC driver.I dont know what is __v excatly means.anyone can
> tell?thanks anyway!
>
> #define readb(c) ({ __u8 __v = __raw_readb(__mem_pci(c)); __v; })
>
> --
> GNU powered it...
> GPL protect it...
> God blessing it...
>
> regards
> HFG--Shawn the R0ck
Hi,
__v is a variable name.
If you convert this macro to a function it would look something like:
uint8_t f(uint8_t *addr)
{
uint8_t __v = 0;
__v = _raw_readb(__mem_pci(addr));
return __v;
}
Regards
T.
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