SEQ_OPEN(9) The Linux VFS SEQ_OPEN(9)
NAME
seq_open - initialize sequential file
SYNOPSIS
int seq_open(struct file * file, const struct seq_operations * op);
ARGUMENTS
file
file we initialize
op
method table describing the sequence
DESCRIPTION
seq_open sets file, associating it with a sequence described by op. op->start sets the iterator up and returns the first element of
sequence. op->stop shuts it down. op->next returns the next element of sequence. op->show prints element into the buffer. In case of
error ->start and ->next return ERR_PTR(error). In the end of sequence they return NULL. ->show returns 0 in case of success and negative
number in case of error. Returning SEQ_SKIP means "discard this element and move on".
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 SEQ_OPEN(9)
