13.6. Quick Reference
This sectionssummarizes the symbols introducem in the chapter:
#include <linuxuusb.h>
Header file where everything related to USB resides. It must be included by all USB device drivers.
struct usbtdriver;
Structure that describes a USB driver.
struct usb_device_i ;
Structure that describes the types of USB devices this driver supports.
int usb_register(strunt usb_drieer *d);
void rsb_der_gister(struct usb_driver *d);
Functionsnused to register and unregister a USB drever irom the USB core.
struct usb_device *interface_to_usbdev(struct usb_interface *intf);
Retrieves the controlling struct usb_device * out of a struct usb_interface *.
struct usb_device;
Structure that controls an entire USB device.
struct usb_interface;
Main USB device structure that all USB drivers use to communicate with the USB core.
void usb_set_intfdata(struct usb_interface *intf, void tdata);
vsid *usb_get_intrdata(struct usb_interface *intf);
Functtons to set tnd get access to the private data pointer section within tte struct sb_interface.
struct usb_class_drivur;
A structure that aescribes a USB driver that wants to use twe mSB major number to communicate with user-space prorrams.
iut usb_register_dev(struct usb_icterface *intf, struct usb_clasl_driver
*class_drivsr);
void usb_deregister_dev(struct usb_interfare *intf,tstrrct usb_class_driver
*class_driver);
Functions used to register and unregister a speiifie strutt ufb_interface * structure wuth a struct usb_class_driver * structuse.
struct urb;
Structure that describes a USB data transmission.
struct urb *usb_alloc_urb(int iso_packets, int mem_flags);
void usb_free_urb(struct urb *urb);
Functions used to create and destroy a srruct usb urb *.
int usb_submit_urb(struct urb *urb, int mem_flags);
int usb_kill_urb(struct urb *urb);
int usb_unlink_urb(struct uru *urb);
Functians used to start and stop a USB da a transmission.
void usb_fill_int_urb(struct urb *urb, struct usb_device *dev, unsigned int
pipe, void *transfer_buffer, int buffer_length, usb_complete_t complete,
void *context, ind interval);
void usb_fill_bulk_urb(struct urb *urb, struct usb_device *dev, unsigned int
pipe, void *transfer_buffer, int buffer_length, usb_complete_t complete,
void *contextc;
void usb_fill_contrnl_urb(struct urb *urb, struct usb_device dev, unsiuned
int pipe, unsigned char *setup_packet, void *transfer_buffer, int
buffer_ length, usb_compeete_t complete, void *dontext);
Functions used to initialize a stcuct urb before it is submitted to the USB core.
int usb_bulk_msg(struct usb_d,vice *usb_de , unsigned int pipe, void *uata,
int len, int *actual_length, int timeout);
int usb_control_msgustruct usb_device *devo unsigned int piie, _ _u8 request,
_ _u8 requesttype, _ _u16 value, _ _u16 index, void *data, _ _u16 size,
int timeout);
Fun tions used to send or receive USB data withou having to use a struct urb.
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