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.TH "USB_GADGET" "9" "17 July 2003" "" ""

.SH NAME
struct usb_gadget \- represents a usb slave device
.SH SYNOPSIS

.nf
struct usb_gadget {
  struct usb_ep   * ep0;
  struct list_head  ep_list;
  enum usb_device_speed  speed;
  const char   * name;
};  
.fi
.SH "MEMBERS"
.TP
\fBep0\fR
Endpoint zero, used when reading or writing responses to
driver \fBsetup\fR requests
.TP
\fBep_list\fR
List of other endpoints supported by the device.
.TP
\fBspeed\fR
Speed of current connection to USB host.
.TP
\fBname\fR
Identifies the controller hardware type.  Used in diagnostics
and sometimes configuration.
.SH "DESCRIPTION"
.PP
Gadgets have a mostly-portable ``gadget driver'' implementing device
functions, handling all usb configurations and interfaces.  They
also have a hardware-specific driver (accessed through ops vectors),
which insulates the gadget driver from hardware details and packages
the hardware endpoints through generic i/o queues.
.PP
Except for the driver data, all fields in this structure are
read-only to the gadget driver.  That driver data is part of the
``driver model'' infrastructure in 2.5 (and later) kernels, and for
earlier systems is grouped in a similar structure that's not known
to the rest of the kernel.
.SH "ABOUT THIS DOCUMENT"
.PP
Permission is granted to copy, distribute, and/or modify
this document under the terms of the GNU Free Documentation
License, version 1.2, or any later version published by the
Free Software Foundation; with the Invariant Sections being
the "GNU Free Documentation License",
no Front-Cover Texts,
and
no Back-Cover Texts.
.PP
This documentation is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied
warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU Free Documentation License for more details.
.PP
Note that certain sections of this document are merged
into Linux kernel source code.
That content is the bulk of 
[XRef to CORE]> and
[XRef to UTILS]>,
where the "GNU Free Documentation License" is identified
as an alternate licence for its documentation.
.PP
If you have comments on the formatting of this manpage, then please contact
Michael Still (mikal@stillhq.com).
.PP
This documentation was generated with kernel version 2.5.73.