blob: ed35c18a5c44bbae2fcd5cf977ae98aeccbf8966 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
/*
* The USB Monitor, inspired by Dave Harding's USBMon.
*/
#ifndef __USB_MON_H
#define __USB_MON_H
#include <linux/list.h>
#include <linux/slab.h>
#include <linux/kref.h>
/* #include <linux/usb.h> */ /* We use struct pointers only in this header */
#define TAG "usbmon"
struct mon_bus {
struct list_head bus_link;
spinlock_t lock;
struct dentry *dent_s; /* Debugging file */
struct dentry *dent_t; /* Text interface file */
struct usb_bus *u_bus;
/* Ref */
int nreaders; /* Under mon_lock AND mbus->lock */
struct list_head r_list; /* Chain of readers (usually one) */
struct kref ref; /* Under mon_lock */
/* Stats */
unsigned int cnt_text_lost;
};
/*
* An instance of a process which opened a file (but can fork later)
*/
struct mon_reader {
struct list_head r_link;
struct mon_bus *m_bus;
void *r_data; /* Use container_of instead? */
void (*rnf_submit)(void *data, struct urb *urb);
void (*rnf_complete)(void *data, struct urb *urb);
};
void mon_reader_add(struct mon_bus *mbus, struct mon_reader *r);
void mon_reader_del(struct mon_bus *mbus, struct mon_reader *r);
extern struct semaphore mon_lock;
extern struct file_operations mon_fops_text;
extern struct file_operations mon_fops_stat;
#endif /* __USB_MON_H */
|
