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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_QLF_DESCR 9S "Jan 5, 2004"
NAME
usb_dev_qlf_descr - USB device qualifier descriptor
SYNOPSIS
#include <sys/usb/usba.h>
INTERFACE LEVEL
illumos DDI specific (illumos DDI)
DESCRIPTION
The device qualifier descriptor usb_dev_qlf_descr_t defines how fields of
a high speed device's device descriptor would look if that device is run at a
different speed. If a high-speed device is running currently at full/high
speed, fields of this descriptor reflect how device descriptor fields would
look if speed was changed to high/full. Please refer to section 9.6.2 of
the USB 2.0 specification. The USB 2.0 specification is available
at www.usb.org.
A device descriptor contains the following fields:
uint8_t bLength Size of this descriptor.
uint8_t bDescriptorType Set to USB_DESCR_TYPE_DEV_QLF.
uint16_t bcdUSB USB specification release
number in binary coded decimal.
uint8_t bDeviceClass Device class code.
(See usb_dev_descr(9s).)
uint8_t bDeviceSubClass Device 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.
uint8_t bNumConfigurations Number of available
configurations.
uint8_t bReserved Reserved.
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_descr (9S), usb_ep_descr (9S), usb_if_descr (9S), usb_other_speed_cfg_descr (9S), usb_string_descr (9S)