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kfifo_to_user
Langue: en
Version: October 2010 (fedora - 01/12/10)
Section: 9 (Appels noyau Linux)
NAME
kfifo_to_user - gets data from the FIFO and write it to user spaceSYNOPSIS
- int kfifo_to_user(struct kfifo * fifo, void __user * to, unsigned int len, unsigned * lenout);
ARGUMENTS
fifo
- the fifo to be used.
to
- where the data must be copied.
len
- the size of the destination buffer.
lenout
- pointer to output variable with copied data
DESCRIPTION
This function copies at most len bytes from the FIFO into the to buffer and 0 or -EFAULT.
Note that with only one concurrent reader and one concurrent writer, you don't need extra locking to use these functions.
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Contenus ©2006-2024 Benjamin Poulain
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