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.
Returns zero if successful, or non-zero on failure.