tty/hvc/hvc_iucv.c

5  * This HVC device driver provides terminal access using
38 #define MSG_TYPE_TERMENV	0x02	/* Terminal environment variable */
39 #define MSG_TYPE_TERMIOS	0x04	/* Terminal IO struct update */
40 #define MSG_TYPE_WINSIZE	0x08	/* Terminal window size update */
41 #define MSG_TYPE_DATA		0x10	/* Terminal data */
97 /* Kernel module parameter: use one terminal device as default */
126  * @num:	The HVC virtual terminal number (vtermno)
129  * to the HVC virtual terminal number specified as parameter @num.
201  * @buf:		HVC buffer for writing received terminal data.
212  * The function returns the number of bytes written to the terminal, zero if
303  * @vtermno:	HVC virtual terminal number.
340  * hvc_iucv_queue() - Buffer terminal data for sending.
380  * hvc_iucv_send() - Send an IUCV message containing terminal data.
448  * @vtermno:	HVC virtual terminal number.
453  * The function calls hvc_iucv_queue() to queue terminal data for sending.
537  * to flush any buffered terminal output data and waits for completion.
560  * up the underlying HVC terminal device.
562  * otherwise there is no need to hang up the terminal device.
576  * Special notes on hanging up a HVC terminal instantiated as console:
772  * to a terminal managed by this device driver.
773  * If the path belongs to this driver, ensure that the terminal is not accessed
774  * multiple times (only one connection to a terminal is allowed).
775  * If the terminal is not yet connected, the pending path is accepted and is
778  * Returns 0 if @path belongs to a terminal managed by the this device driver;
798 	 * - find the device that matches the terminal ID in ipuser  in hvc_iucv_path_pending()
836 	/* If the terminal is already connected or being severed, then sever  in hvc_iucv_path_pending()
838 	 * path per terminal. */  in hvc_iucv_path_pending()
878  * respective IUCV HVC terminal.
1364 	/* register the first terminal device as console  in hvc_iucv_init()
1365 	 * (must be done before allocating hvc terminal devices) */  in hvc_iucv_init()
1368 		pr_err("Registering HVC terminal device as "  in hvc_iucv_init()
1377 			pr_err("Creating a new HVC terminal device "  in hvc_iucv_init()