118 	unsigned int column;  member
399  * Locking: should be called under the %output_lock to protect the column state
413 			ldata->column = 0;  in do_output_char()
417 			ldata->canon_column = ldata->column = 0;  in do_output_char()
421 		ldata->canon_column = ldata->column;  in do_output_char()
424 		if (O_ONOCR(tty) && ldata->column == 0)  in do_output_char()
429 				ldata->canon_column = ldata->column = 0;  in do_output_char()
432 		ldata->canon_column = ldata->column = 0;  in do_output_char()
435 		spaces = 8 - (ldata->column & 7);  in do_output_char()
439 			ldata->column += spaces;  in do_output_char()
443 		ldata->column += spaces;  in do_output_char()
446 		if (ldata->column > 0)  in do_output_char()
447 			ldata->column--;  in do_output_char()
454 				ldata->column++;  in do_output_char()
473  * Locking: %output_lock to protect column state and space left (also, this is
503  * Locking: %output_lock to protect column state and space left (also, this is
528 				ldata->column = 0;  in process_output_block()
531 			ldata->canon_column = ldata->column;  in process_output_block()
534 			if (O_ONOCR(tty) && ldata->column == 0)  in process_output_block()
538 			ldata->canon_column = ldata->column = 0;  in process_output_block()
543 			if (ldata->column > 0)  in process_output_block()
544 				ldata->column--;  in process_output_block()
551 					ldata->column++;  in process_output_block()
593 		 * offset by canon column. Otherwise, tab spacing is normal.  in n_tty_process_echo_ops()
605 			if (ldata->column > 0)  in n_tty_process_echo_ops()
606 				ldata->column--;  in n_tty_process_echo_ops()
612 		ldata->canon_column = ldata->column;  in n_tty_process_echo_ops()
617 		if (ldata->column > 0)  in n_tty_process_echo_ops()
618 			ldata->column--;  in n_tty_process_echo_ops()
628 		ldata->column++;  in n_tty_process_echo_ops()
645 		ldata->column += 2;  in n_tty_process_echo_ops()
667  * driver at the time of the write, operations like certain changes in column
803  * echo_move_back_col	-	add operation to move back a column
806  * Add an operation to the echo buffer to move back one column.
815  * echo_set_canon_col	-	add operation to set the canon column
818  * Add an operation to the echo buffer to set the canon column to the current
819  * column.
837  * information will be used later, along with canon column (if applicable), to
1309 			/* Record the column of first canon char. */  in n_tty_receive_char_canon()
1372 			/* Record the column of first canon char. */  in n_tty_receive_char_special()
1409 		/* Record the column of first canon char. */  in n_tty_receive_char()
2326  * here as well as in the echo processing function to protect the column state
2331  * Locking: output_lock to protect column state and space left