usb_urb_dir_out(9) centos man page | unix.com

USB_URB_DIR_OUT(9)					  Host-Side Data Types and Macro					USB_URB_DIR_OUT(9)

NAME
       usb_urb_dir_out - check if an URB describes an OUT transfer

SYNOPSIS
       int usb_urb_dir_out(struct urb * urb);

ARGUMENTS
       urb
	   URB to be checked

RETURN
       1 if urb describes an OUT transfer (host-to-device), otherwise 0.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							USB_URB_DIR_OUT(9)