devio.c File Reference

#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/signal.h>
#include <linux/poll.h>
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/usbdevice_fs.h>
#include <linux/usb/hcd.h>
#include <linux/cdev.h>
#include <linux/notifier.h>
#include <linux/security.h>
#include <linux/user_namespace.h>
#include <linux/scatterlist.h>
#include <asm/uaccess.h>
#include <asm/byteorder.h>
#include <linux/moduleparam.h>
#include "usb.h"

Go to the source code of this file.

Data Structures
struct	dev_state
struct	async

Macros
#define	USB_MAXBUS   64
#define	USB_DEVICE_MAX   USB_MAXBUS * 128
#define	USB_SG_SIZE   16384 /* split-size for large txs */
#define	snoop(dev, format, arg...)
#define	USB_DEVICE_DEV   MKDEV(USB_DEVICE_MAJOR, 0)
#define	USBFS_XFER_MAX   (UINT_MAX / 2 - 1000000)
#define	AS_CONTINUATION   1
#define	AS_UNLINK   2

Enumerations
enum	snoop_when { SUBMIT, COMPLETE }

Functions
	DEFINE_MUTEX (usbfs_mutex)
	module_param (usbfs_snoop, bool, S_IRUGO|S_IWUSR)
	MODULE_PARM_DESC (usbfs_snoop,"true to log all usbfs traffic")
	module_param (usbfs_memory_mb, uint, 0644)
	MODULE_PARM_DESC (usbfs_memory_mb,"maximum MB allowed for usbfs buffers (0 = no limit)")
int __init	usb_devio_init (void)
void	usb_devio_cleanup (void)

Variables
struct usb_driver	usbfs_driver
struct file_operations	usbdev_file_operations

Macro Definition Documentation

#define AS_CONTINUATION   1

Definition at line 447 of file devio.c.

#define AS_UNLINK   2

Definition at line 448 of file devio.c.

#define snoop	(		dev,
			format,
			arg...
	)

Value:

do {                            \
        if (usbfs_snoop)                \
			dev_info(dev , format , ## arg); \
    } while (0)

Definition at line 102 of file devio.c.

#define USB_DEVICE_DEV   MKDEV(USB_DEVICE_MAJOR, 0)

Definition at line 112 of file devio.c.

#define USB_DEVICE_MAX   USB_MAXBUS * 128

Definition at line 58 of file devio.c.

#define USB_MAXBUS   64

Definition at line 57 of file devio.c.

#define USB_SG_SIZE   16384 /* split-size for large txs */

Definition at line 59 of file devio.c.

#define USBFS_XFER_MAX   (UINT_MAX / 2 - 1000000)

Definition at line 121 of file devio.c.

Enumeration Type Documentation

enum snoop_when

Enumerator:

SUBMIT
COMPLETE

Definition at line 108 of file devio.c.

Function Documentation

DEFINE_MUTEX

(

usbfs_mutex

)

module_param	(	usbfs_snoop	,
		bool	,
		S_IRUGO|	S_IWUSR
	)

module_param	(	usbfs_memory_mb	,
		uint	,
		0644
	)

MODULE_PARM_DESC	(	usbfs_snoop	,
		"true to log all usbfs traffic"
	)

MODULE_PARM_DESC	(	usbfs_memory_mb	,
		"maximum MB allowed for usbfs buffers (0 = no limit)"
	)

void usb_devio_cleanup

(

void

)

Definition at line 2263 of file devio.c.

int __init usb_devio_init

(

void

)

Definition at line 2237 of file devio.c.

Variable Documentation

struct file_operations usbdev_file_operations

Initial value:

= {
    .owner =      THIS_MODULE,
    .llseek =     usbdev_lseek,
    .read =       usbdev_read,
    .poll =       usbdev_poll,
    .unlocked_ioctl = usbdev_ioctl,



    .open =       usbdev_open,
    .release =    usbdev_release,
}

Definition at line 2184 of file devio.c.

struct usb_driver usbfs_driver

Initial value:

= {
    .name =     "usbfs",
    .probe =    driver_probe,
    .disconnect =   driver_disconnect,
    .suspend =  driver_suspend,
    .resume =   driver_resume,
}

Definition at line 622 of file devio.c.