copy_from_user_toio(9) centos man page | unix.com

COPY_FROM_USER_TOIO(9)					  Management of Cards and Device				    COPY_FROM_USER_TOIO(9)

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.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						    COPY_FROM_USER_TOIO(9)