usb_root_hub_lost_power(9)

usb_root_hub_lost_power9

Called by hcd if the root hub lost vbus power

Usage

void usb_root_hub_lost_power(struct usb_device * rhdev);

Arguments

rhdev

struct usb_device for the root hub

Overview

The USB host controller driver calls this function when its root hub is resumed and Vbus power has been interrupted or the controller has been reset. The routine marks rhdev as having lost power. When the hub driver is resumed it will take notice and carry out power-session recovery for all the “USB-PERSIST”-enabled child devices; the others will be disconnected.

Releases

6 releases since Debian 4.0 (Etch); the text changed 5 times.

  1. 4.0
  2. 5.0
  3. 6.0
  4. 7
  5. 8
  6. 9

From linux-manual-4.9 4.9.228-1 in Debian 9 (Stretch). Parsed by carta from the page's man source.