From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/usb/mon/usb_mon.h | 76 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 drivers/usb/mon/usb_mon.h (limited to 'drivers/usb/mon/usb_mon.h') diff --git a/drivers/usb/mon/usb_mon.h b/drivers/usb/mon/usb_mon.h new file mode 100644 index 000000000..aa64efaba --- /dev/null +++ b/drivers/usb/mon/usb_mon.h @@ -0,0 +1,76 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * The USB Monitor, inspired by Dave Harding's USBMon. + * + * Copyright (C) 2005 Pete Zaitcev (zaitcev@redhat.com) + */ + +#ifndef __USB_MON_H +#define __USB_MON_H + +#include +#include +#include +/* #include */ /* We use struct pointers only in this header */ + +#define TAG "usbmon" + +struct mon_bus { + struct list_head bus_link; + spinlock_t lock; + struct usb_bus *u_bus; + + int text_inited; + int bin_inited; + struct dentry *dent_s; /* Debugging file */ + struct dentry *dent_t; /* Text interface file */ + struct dentry *dent_u; /* Second text interface file */ + struct device *classdev; /* Device in usbmon class */ + + /* 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_events; + 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_error)(void *data, struct urb *urb, int error); + void (*rnf_complete)(void *data, struct urb *urb, int status); +}; + +void mon_reader_add(struct mon_bus *mbus, struct mon_reader *r); +void mon_reader_del(struct mon_bus *mbus, struct mon_reader *r); + +struct mon_bus *mon_bus_lookup(unsigned int num); + +int /*bool*/ mon_text_add(struct mon_bus *mbus, const struct usb_bus *ubus); +void mon_text_del(struct mon_bus *mbus); +int /*bool*/ mon_bin_add(struct mon_bus *mbus, const struct usb_bus *ubus); +void mon_bin_del(struct mon_bus *mbus); + +int __init mon_text_init(void); +void mon_text_exit(void); +int __init mon_bin_init(void); +void mon_bin_exit(void); + +/* + */ +extern struct mutex mon_lock; + +extern const struct file_operations mon_fops_stat; + +extern struct mon_bus mon_bus0; /* Only for redundant checks */ + +#endif /* __USB_MON_H */ -- cgit v1.2.3