usb_alloc_dev
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Name

usb_alloc_dev — usb device constructor (usbcore-internal)

Synopsis

struct usb_device * usb_alloc_dev (struct usb_device * parent,
 struct usb_bus * bus,
 unsigned port1);
 

Arguments

parent

hub to which device is connected; null to allocate a root hub

bus

bus used to access the device

port1

one-based index of port; ignored for root hubs

Context

!in_interrupt

Description

Only hub drivers (including virtual root hub drivers for host controllers) should ever call this.

This call may not be used in a non-sleeping context.

Return

On success, a pointer to the allocated usb device. NULL on failure.

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