__copy_to_user - Copy a block of data into user space, with less checking.
2. SYNOPSIS ▲
unsigned long __copy_to_user(void __user * to , const void * from , unsigned long n );
3. ARGUMENTS ▲
Destination address, in user space.
Source address, in kernel space.
Number of bytes to copy.
4. CONTEXT ▲
User context only. This function may sleep.
5. DESCRIPTION ▲
Copy data from kernel space to user space. Caller must check the specified block with access_ok before calling this function.
Returns number of bytes that could not be copied. On success, this will be zero.
6. COPYRIGHT ▲