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Copyright (c) 2004, Sun Microsystems, Inc., All Rights Reserved
The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License.
You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
Copyright (c) 2004, Sun Microsystems, Inc., All Rights Reserved
The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License.
You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
USB_DEV_DESCR 9S "Jan 5, 2004"
NAME
usb_dev_descr - USB device descriptor
SYNOPSIS
#include <sys/usb/usba.h>
INTERFACE LEVEL
illumos DDI specific (illumos DDI)
DESCRIPTION
The usb_dev_descr_t device descriptor defines device-wide attributes.
Please refer to Section 9.6.1 of the USB 2.0 specification. The
USB 2.0 specification is available at www.usb.org.
The device descriptor is retrieved from a USB device during device enumeration and can be accessed via usb_get_dev_data(9F).
A device descriptor contains the following fields:
uint8_t bLength Size of this descriptor, in bytes. uint8_t bDescriptorType Set to USB_DESCR_TYPE_DEV. uint16_t bcdUSB USB specification release number supported, in bcd. uint8_t bDeviceClass Class code (see below). uint8_t bDeviceSubClass Subclass code (see USB 2.0 specification of applicable device class for information.) uint8_t bDeviceProtocol Protocol code (see USB 2.0 specification of applicable device class for information.) uint8_t bMaxPacketSize0 Maximum packet size of endpoint 0. uint16_t idVendor vendor ID value. uint16_t idProduct product ID value. uint16_t bcdDevice Device release number in binary coded decimal. uint8_t iManufacturer Index of optional manufacturer description string. Valid if > 0. uint8_t iProduct Index of optional product description string. Valid if > 0. uint8_t iSerialNumber Index of optional serial number string. Valid if > 0. uint8_t bNumConfigurations Number of available configurations. Device descriptors bDeviceClass values: USB_CLASS_PER_INTERFACE Class information is at interface level. USB_CLASS_COMM CDC control device class. USB_CLASS_DIAG Diagnostic device class. USB_CLASS_HUB HUB device class. USB_CLASS_MISC MISC device class. USB_CLASS_VENDOR_SPEC Vendor-specific class. USB_CLASS_WIRELESS Wireless controller device class.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
| ATTRIBUTE TYPE ATTRIBUTE VALUE |
| Architecture PCI-based systems |
| Interface stability Committed |
SEE ALSO
attributes (7), 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_qlf_descr (9S), usb_ep_descr (9S), usb_if_descr (9S), usb_other_speed_cfg_descr (9S), usb_string_descr (9S)