SYNOPSIS

struct media_file_operations {
struct module * owner;
ssize_t (* read) (struct file *, char __user *, size_t, loff_t *);
ssize_t (* write) (struct file *, const char __user *, size_t, loff_t *);
unsigned int (* poll) (struct file *, struct poll_table_struct *);
long (* ioctl) (struct file *, unsigned int, unsigned long);
long (* compat_ioctl) (struct file *, unsigned int, unsigned long);
int (* open) (struct file *);
int (* release) (struct file *);
};

MEMBERS

owner

should be filled with THIS_MODULE

read

pointer to the function that implements read syscall

write

pointer to the function that implements write syscall

poll

pointer to the function that implements poll syscall

ioctl

pointer to the function that implements ioctl syscall

compat_ioctl

pointer to the function that will handle 32 bits userspace calls to the the ioctl syscall on a Kernel compiled with 64 bits.

open

pointer to the function that implements open syscall

release

pointer to the function that will release the resources allocated by the open function.

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