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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/usb/mon/usb_mon.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/usb/mon/usb_mon.h')
-rw-r--r--drivers/usb/mon/usb_mon.h51
1 files changed, 51 insertions, 0 deletions
diff --git a/drivers/usb/mon/usb_mon.h b/drivers/usb/mon/usb_mon.h
new file mode 100644
index 000000000000..ed35c18a5c44
--- /dev/null
+++ b/drivers/usb/mon/usb_mon.h
@@ -0,0 +1,51 @@
1/*
2 * The USB Monitor, inspired by Dave Harding's USBMon.
3 */
4
5#ifndef __USB_MON_H
6#define __USB_MON_H
7
8#include <linux/list.h>
9#include <linux/slab.h>
10#include <linux/kref.h>
11/* #include <linux/usb.h> */ /* We use struct pointers only in this header */
12
13#define TAG "usbmon"
14
15struct mon_bus {
16 struct list_head bus_link;
17 spinlock_t lock;
18 struct dentry *dent_s; /* Debugging file */
19 struct dentry *dent_t; /* Text interface file */
20 struct usb_bus *u_bus;
21
22 /* Ref */
23 int nreaders; /* Under mon_lock AND mbus->lock */
24 struct list_head r_list; /* Chain of readers (usually one) */
25 struct kref ref; /* Under mon_lock */
26
27 /* Stats */
28 unsigned int cnt_text_lost;
29};
30
31/*
32 * An instance of a process which opened a file (but can fork later)
33 */
34struct mon_reader {
35 struct list_head r_link;
36 struct mon_bus *m_bus;
37 void *r_data; /* Use container_of instead? */
38
39 void (*rnf_submit)(void *data, struct urb *urb);
40 void (*rnf_complete)(void *data, struct urb *urb);
41};
42
43void mon_reader_add(struct mon_bus *mbus, struct mon_reader *r);
44void mon_reader_del(struct mon_bus *mbus, struct mon_reader *r);
45
46extern struct semaphore mon_lock;
47
48extern struct file_operations mon_fops_text;
49extern struct file_operations mon_fops_stat;
50
51#endif /* __USB_MON_H */