---
name: "usb_hcd_resume_root_hub"
section: "9"
platform: "linux"
package: "linux-manual-4.9"
version: "4.9.228-1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/usb_hcd_resume_root_hub"
---

# usb\_hcd\_resume\_root\_hub(9)

called by HCD to resume its root hub

## NAME

usb\_hcd\_resume\_root\_hub - called by HCD to resume its root hub

## SYNOPSIS

**void usb\_hcd\_resume\_root\_hub(struct usb\_hcd \*** *hcd***);**

## ARGUMENTS

*hcd*

host controller for this root hub

## DESCRIPTION

The USB host controller calls this function when its root hub is suspended (with the remote wakeup feature enabled) and a remote wakeup request is received. The routine submits a workqueue request to resume the root hub (that is, manage its downstream ports again).

## COPYRIGHT