suse man page for relay_open

RELAY_OPEN(9)						      relay interface support						     RELAY_OPEN(9)

NAME
       relay_open - create a new relay channel

SYNOPSIS
       struct rchan * relay_open(const char * base_filename, struct dentry * parent, size_t subbuf_size, size_t n_subbufs,
				 struct rchan_callbacks * cb, void * private_data);

ARGUMENTS
       base_filename
	   base name of files to create, NULL for buffering only

       parent
	   dentry of parent directory, NULL for root directory or buffer

       subbuf_size
	   size of sub-buffers

       n_subbufs
	   number of sub-buffers

       cb
	   client callback functions

       private_data
	   user-defined data

DESCRIPTION
       Returns channel pointer if successful, NULL otherwise.

       Creates a channel buffer for each cpu using the sizes and attributes specified. The created channel buffer files will be named
       base_filename0...base_filenameN-1. File permissions will be S_IRUSR.

COPYRIGHT
Kernel Hackers Manual 2.6.					     July 2010							     RELAY_OPEN(9)