COPY_TO_USER(9) Memory Management in Linux COPY_TO_USER(9)
NAME
copy_to_user - Copy a block of data into user space.
SYNOPSIS
unsigned long copy_to_user(void __user * to, const void * from, unsigned long n);
ARGUMENTS
to
Destination address, in user space.
from
Source address, in kernel space.
n
Number of bytes to copy.
CONTEXT
User context only. This function may sleep.
DESCRIPTION
Copy data from kernel space to user space.
Returns number of bytes that could not be copied. On success, this will be zero.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 COPY_TO_USER(9)
