copy_to_user

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.