X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;ds=sidebyside;f=Documentation%2Fserial%2Fdriver;fp=Documentation%2Fserial%2Fdriver;h=42ef9970bc86b1ad762a5928942f63085be0019d;hb=64ba3f394c830ec48a1c31b53dcae312c56f1604;hp=88ad615dd338d75e2b282422c8f2d6f7f3af80b7;hpb=be1e6109ac94a859551f8e1774eb9a8469fe055c;p=linux-2.6.git

diff --git a/Documentation/serial/driver b/Documentation/serial/driver
index 88ad615dd..42ef9970b 100644
--- a/Documentation/serial/driver
+++ b/Documentation/serial/driver
@@ -3,11 +3,14 @@
 			--------------------
 
 
+   $Id: driver,v 1.10 2002/07/22 15:27:30 rmk Exp $
+
+
 This document is meant as a brief overview of some aspects of the new serial
 driver.  It is not complete, any questions you have should be directed to
 <rmk@arm.linux.org.uk>
 
-The reference implementation is contained within amba_pl011.c.
+The reference implementation is contained within serial_amba.c.
 
 
 
@@ -28,11 +31,6 @@ The serial core provides a few helper functions.  This includes identifing
 the correct port structure (via uart_get_console) and decoding command line
 arguments (uart_parse_options).
 
-There is also a helper function (uart_write_console) which performs a
-character by character write, translating newlines to CRLF sequences.
-Driver writers are recommended to use this function rather than implementing
-their own version.
-
 
 Locking
 -------
@@ -88,7 +86,6 @@ hardware.
 		- TIOCM_DTR	DTR signal.
 		- TIOCM_OUT1	OUT1 signal.
 		- TIOCM_OUT2	OUT2 signal.
-		- TIOCM_LOOP	Set the port into loopback mode.
 	If the appropriate bit is set, the signal should be driven
 	active.  If the bit is clear, the signal should be driven
 	inactive.
@@ -144,10 +141,6 @@ hardware.
   enable_ms(port)
 	Enable the modem status interrupts.
 
-	This method may be called multiple times.  Modem status
-	interrupts should be disabled when the shutdown method is
-	called.
-
 	Locking: port->lock taken.
 	Interrupts: locally disabled.
 	This call must not sleep
@@ -167,8 +160,6 @@ hardware.
 	state.  Enable the port for reception.  It should not activate
 	RTS nor DTR; this will be done via a separate call to set_mctrl.
 
-	This method will only be called when the port is initially opened.
-
 	Locking: port_sem taken.
 	Interrupts: globally disabled.
 
@@ -178,11 +169,6 @@ hardware.
 	RTS nor DTR; this will have already been done via a separate
 	call to set_mctrl.
 
-	Drivers must not access port->info once this call has completed.
-
-	This method will only be called when there are no more users of
-	this port.
-
 	Locking: port_sem taken.
 	Interrupts: caller dependent.
 
@@ -214,13 +200,12 @@ hardware.
 	The interaction of the iflag bits is as follows (parity error
 	given as an example):
 	Parity error	INPCK	IGNPAR
-	n/a		0	n/a	character received, marked as
-					TTY_NORMAL
-	None		1	n/a	character received, marked as
+	None		n/a	n/a	character received
+	Yes		n/a	0	character discarded
+	Yes		0	1	character received, marked as
 					TTY_NORMAL
-	Yes		1	0	character received, marked as
+	Yes		1	1	character received, marked as
 					TTY_PARITY
-	Yes		1	1	character discarded
 
 	Other flags may be used (eg, xon/xoff characters) if your
 	hardware supports hardware "soft" flow control.