1COPY_FROM_USER_TOIO(9) Management of Cards and Device COPY_FROM_USER_TOIO(9)
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6 copy_from_user_toio - copy data from user-space to mmio-space
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9 int copy_from_user_toio(volatile void __iomem * dst,
10 const void __user * src, size_t count);
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13 dst
14 the destination pointer on mmio-space
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16 src
17 the source pointer on user-space
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19 count
20 the data size to copy in bytes
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23 Copies the data from user-space to mmio-space.
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26 Zero if successful, or non-zero on failure.
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29Kernel Hackers Manual 3.10 June 2019 COPY_FROM_USER_TOIO(9)