USB_ALLOC_URB

Section: (9)
Updated: 09 October 2005
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NAME

usb_alloc_urb - creates a new urb for a USB driver to use

"SYNOPSIS"

struct urb * usb_alloc_urb (int iso_packets, unsigned mem_flags);

iso_packets: number of iso packets for this urb
mem_flags: the type of memory to allocate, see kmalloc for a list of valid options for this.

Creates an urb for the USB driver to use, initializes a few internal structures, incrementes the usage counter, and returns a pointer to it.

If no memory is available, NULL is returned.

If the driver want to use this urb for interrupt, control, or bulk endpoints, pass '0' as the number of iso packets.

The driver must call usb_free_urb when it is finished with the urb.

This document was created by man2html, using the manual pages.
Time: 00:02:56 GMT, October 09, 2005