'\" t
.\"     Title: usb_gadget_wakeup
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: May 2018
.\"    Manual: Kernel Mode Gadget API
.\"    Source: Kernel Hackers Manual 3.16.56
.\"  Language: English
.\"
.TH "USB_GADGET_WAKEUP" "9" "May 2018" "Kernel Hackers Manual 3\&.16\&" "Kernel Mode Gadget API"
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.SH "NAME"
usb_gadget_wakeup \- tries to wake up the host connected to this gadget
.SH "SYNOPSIS"
.HP \w'int\ usb_gadget_wakeup('u
.BI "int usb_gadget_wakeup(struct\ usb_gadget\ *\ " "gadget" ");"
.SH "ARGUMENTS"
.PP
\fIgadget\fR
.RS 4
controller used to wake up the host
.RE
.SH "DESCRIPTION"
.PP
Returns zero on success, else negative error code if the hardware doesn\*(Aqt support such attempts, or its support has not been enabled by the usb host\&. Drivers must return device descriptors that report their ability to support this, or hosts won\*(Aqt enable it\&.
.PP
This may also try to use SRP to wake the host and start enumeration, even if OTG isn\*(Aqt otherwise in use\&. OTG devices may also start remote wakeup even when hosts don\*(Aqt explicitly enable it\&.
.SH "AUTHOR"
.PP
\fBDavid Brownell\fR <\&dbrownell@users.sourceforge.net\&>
.RS 4
Author.
.RE
.SH "COPYRIGHT"
.br