Manual Pages for UNIX Operating System command usage for man usb_if_descr

Data Structures for Drivers                      usb_if_descr(9S)



NAME
     usb_if_descr - USB interface descriptor

SYNOPSIS
     #include 


INTERFACE LEVEL
     Solaris DDI specific (Solaris DDI)

DESCRIPTION
     The usb_if_descr_t interface descriptor  defines  attributes
     of an interface. A configuration contains one or more inter-
     faces. An interface contains one or more endpoints.


     Please refer to Section 9.6.5 of the USB 2.0  specification.
     The USB 2.0 specification is available at www.usb.org.


     One or more configuration descriptors are retrieved  from  a
     USB  device  during device enumeration. They can be accessed
     via usb_get_dev_data(9F).


     A  interface descriptor has the following fields:

       uint8_t     bLength                 Size of this descriptor
                                           in bytes.

       uint8_t     bDescriptorType         Set to USB_DESCR_TYPE_IF.

       uint8_t     bInterfaceNumber        Interface number (0-based).

       uint8_t     bAlternateSetting       Alternate setting number for
                                           this interface and its
                                           endpoints (0-based).

       uint8_t     bNumEndpoints           Number of endpoints,
                                           excluding endpoint 0.

       uint8_t     bInterfaceClass         Interface Class code
                                           (see below).

       uint8_t     bInterfaceSubClass      Sub class code. (See USB 2.0
                                           specification of applicable
                                           interface class for information.)

       uint8_t     bInterfaceProtocol      Protocol code.  (See USB 2.0
                                           specification of applicable
                                           interface class for information.)




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Data Structures for Drivers                      usb_if_descr(9S)



       uint8_t     iInterface              Index of optional string
                                           describing this interface
                                           Valid if > 0. Pass to
                                           usb_get_string_descr(9F) to
                                           retrieve string.

       USB 2.0 specification interface descriptor bInterfaceClass field
       values are as follows:

               USB_CLASS_APP           Application-specific interface class

               USB_CLASS_AUDIO         Audio interface class

               USB_CLASS_CCID          Chip/Smartcard interface class

               USB_CLASS_CDC_CTRL      CDC control interface class

               USB_CLASS_CDC_DATA      CDC data interface class

               USB_CLASS_SECURITY      Content security interface class

               USB_CLASS_DIAG          Diagnostic interface class

               USB_CLASS_HID           HID interface class

               USB_CLASS_HUB           HUB interface class

               USB_CLASS_MASS_STORAGE  Mass storage interface class

               USB_CLASS_PHYSICAL      Physical interface class

               USB_CLASS_PRINTER       Printer interface class

               USB_CLASS_VENDOR_SPEC   Vendor-specific interface class

               USB_CLASS_WIRELESS      Wireless interface class




ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:












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Data Structures for Drivers                      usb_if_descr(9S)



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Architecture                | PCI-based systems           |
    |_____________________________|_____________________________|
    | Interface Stability         | Committed                   |
    |_____________________________|_____________________________|
    | Availability                | system/header/header-usb    |
    |_____________________________|_____________________________|


SEE ALSO
     attributes(5),     usb_get_alt_if(9F),      usb_get_cfg(9F),
     usb_get_dev_data(9F),              usb_get_string_descr(9F),
     usb_parse_data(9F), usb_cfg_descr(9S), usb_ctrl_request(9S),
     usb_dev_descr(9S),  usb_dev_qlf_descr(9S), usb_ep_descr(9S),
     usb_other_speed_cfg_descr(9S), usb_string_descr(9S)






































SunOS 5.11           Last change: 5 Jan 2004                    3