usb_alloc_dev9
Usb device constructor (usbcore-internal)
Usage
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
Overview
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.