| 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 if pagefaults are enabled.
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¶
| June 2024 | Kernel Hackers Manual 3.10 |