centos man page for usb_urb_dir_in

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

NAME
       usb_urb_dir_in - check if an URB describes an IN transfer

SYNOPSIS
       int usb_urb_dir_in(struct urb * urb);

ARGUMENTS
       urb
	   URB to be checked

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

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							 USB_URB_DIR_IN(9)