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FLAG Question???


Hi, all..

I have a question about flags:

can i use a harware register as a flag??

For example, i have a FPGA that can access address and
data bus. Can i define a flag to be a register in my
FPGA???

How the kernel detect that a flag change??? Read
constantly the flag address or check the function set
and mask???

Thanks 

Carlos Camargo


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