struct_hsi_msg(9) [centos man page]

STRUCT 
HSI_MSG(9)					   High Speed Synchronous Serial					 STRUCT HSI_MSG(9)

NAME

       struct_hsi_msg - HSI message descriptor

SYNOPSIS

       struct hsi_msg {
	 struct list_head link;
	 struct hsi_client * cl;
	 struct sg_table sgt;
	 void * context;
	 void (* complete) (struct hsi_msg *msg);
	 void (* destructor) (struct hsi_msg *msg);
	 int status;
	 unsigned int actual_len;
	 unsigned int channel;
	 unsigned int ttype:1;
	 unsigned int break_frame:1;
       };

MEMBERS

       link
	   Free to use by the current descriptor owner

       cl
	   HSI device client that issues the transfer

       sgt
	   Head of the scatterlist array

       context
	   Client context data associated to the transfer

       complete
	   Transfer completion callback

       destructor
	   Destructor to free resources when flushing

       status
	   Status of the transfer when completed

       actual_len
	   Actual length of data transfered on completion

       channel
	   Channel were to TX/RX the message

       ttype
	   Transfer type (TX if set, RX otherwise)

       break_frame
	   if true HSI will send/receive a break frame. Data buffers are ignored in the request.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014							 STRUCT HSI_MSG(9)

STRUCT 
PIPE_INODE_IN(9) 					     pipes API						   STRUCT PIPE_INODE_IN(9)

NAME

       struct_pipe_inode_info - a linux kernel pipe

SYNOPSIS

       struct pipe_inode_info {
	 struct mutex mutex;
	 wait_queue_head_t wait;
	 unsigned int nrbufs;
	 unsigned int curbuf;
	 unsigned int buffers;
	 unsigned int readers;
	 unsigned int writers;
	 unsigned int files;
	 unsigned int waiting_writers;
	 unsigned int r_counter;
	 unsigned int w_counter;
	 struct page * tmp_page;
	 struct fasync_struct * fasync_readers;
	 struct fasync_struct * fasync_writers;
	 struct pipe_buffer * bufs;
       };

MEMBERS

       mutex
	   mutex protecting the whole thing

       wait
	   reader/writer wait point in case of empty/full pipe

       nrbufs
	   the number of non-empty pipe buffers in this pipe

       curbuf
	   the current pipe buffer entry

       buffers
	   total number of buffers (should be a power of 2)

       readers
	   number of current readers of this pipe

       writers
	   number of current writers of this pipe

       files
	   number of struct file refering this pipe (protected by ->i_lock)

       waiting_writers
	   number of writers blocked waiting for room

       r_counter
	   reader counter

       w_counter
	   writer counter

       tmp_page
	   cached released page

       fasync_readers
	   reader side fasync

       fasync_writers
	   writer side fasync

       bufs
	   the circular array of pipe buffers

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						   STRUCT PIPE_INODE_IN(9)