NAME
seq_read - ->read method for sequential files.
SYNOPSIS
ssize_t seq_read(struct file * file, char __user * buf, size_t size, loff_t * ppos);
ARGUMENTS
file
the file to read from
buf
the buffer to read to
size
the maximum number of bytes to read
ppos
the current position in the file
DESCRIPTION
Ready-made ->f_op->read