'\" te
.\" Copyright (c) 2004, Sun Microsystems, Inc., All Rights Reserved
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.TH USB_STRING_DESCR 9S "Jan 5, 2004"
.SH NAME
usb_string_descr \- USB string descriptor
.SH SYNOPSIS
.LP
.nf
#include <sys/usb/usba.h>
.fi

.SH INTERFACE LEVEL
.sp
.LP
Solaris DDI specific (Solaris DDI)
.SH DESCRIPTION
.sp
.LP
The \fBusb_string_descr_t\fR string descriptor defines the attributes of a
string, including size and Unicode language ID.  Other USB descriptors may have
string descriptor index fields which refer to specific string descriptors
retrieved as part of a device's configuration.
.sp
.LP
Please refer to Section \fI9.6.7\fR of the \fIUSB 2.0\fR specification. The
\fIUSB 2.0\fR specification is available at \fIwww.usb.org\fR.
.sp
.LP
A  string descriptor has the following fields:
.sp
.in +2
.nf
uint8_t       bLength                Size of this descriptor,
                                     in bytes.

uint8_t       bDescriptorType        Set to USB_DESCR_TYPE_STRING.

uint16_t      bString[1];            Variable length Unicode encoded
                                     string.
.fi
.in -2

.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE	ATTRIBUTE VALUE
_
Architecture	PCI-based systems
_
Interface stability	Committed
.TE

.SH SEE ALSO
.sp
.LP
\fBattributes\fR(5), \fBusb_get_alt_if\fR(9F), \fBusb_get_cfg\fR(9F),
\fBusb_get_dev_data\fR(9F), \fBusb_get_string_descr\fR(9F),
\fBusb_parse_data\fR(9F), \fBusb_ctrl_request\fR(9S)