copy_from_user_toio (9) - Linux Manuals

copy_from_user_toio: copy data from user-space to mmio-space

NAME

copy_from_user_toio - copy data from user-space to mmio-space

SYNOPSIS

int copy_from_user_toio(volatile void __iomem * dst, const void __user * src, size_t count);

ARGUMENTS

dst

the destination pointer on mmio-space

src

the source pointer on user-space

count

the data size to copy in bytes

DESCRIPTION

Copies the data from user-space to mmio-space.

RETURN

Zero if successful, or non-zero on failure.

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