Re: Serial Driver Name Question (kernels 2.4.x)

[Andrew Morton <akpm@zip.com.au>]

[ tty driver name breakage ]

Richard, can we please get this wrapped up?

My preferred approach is to change the driver naming scheme
so that we don't have to put printf control-strings everywhere.
We can remove a number of ifdefs that way.

So for serial.c:

--- linux-2.4.18-pre2/drivers/char/tty_io.c	Mon Jan  7 16:48:02 2002
+++ linux-akpm/drivers/char/tty_io.c	Mon Jan  7 20:56:38 2002
@@ -193,10 +193,13 @@ _tty_make_name(struct tty_struct *tty, c
 
 	if (!tty) /* Hmm.  NULL pointer.  That's fun. */
 		strcpy(buf, "NULL tty");
-	else
-		sprintf(buf, name,
-			idx + tty->driver.name_base);
-		
+	else {
+#ifdef CONFIG_DEVFS_FS
+		sprintf(buf, "%s/%d", name, idx + tty->driver.name_base);
+#else
+		sprintf(buf, "%s%d", name, idx + tty->driver.name_base);
+#endif
+	}		
 	return buf;
 }
 
--- linux-2.4.18-pre2/drivers/char/serial.c	Mon Jan  7 16:48:02 2002
+++ linux-akpm/drivers/char/serial.c	Mon Jan  7 20:58:09 2002
@@ -5387,7 +5387,7 @@ static int __init rs_init(void)
 	serial_driver.driver_name = "serial";
 #endif
 #if (LINUX_VERSION_CODE > 0x2032D && defined(CONFIG_DEVFS_FS))
-	serial_driver.name = "tts/%d";
+	serial_driver.name = "tts";
 #else
 	serial_driver.name = "ttyS";
 #endif