It's easier to add parallel ports to a machine nowadays, so the
default maximum of three printer devices is becoming a bit
restrictive.
Here's a patch to increase it. Any objections?
Tim.
*/
2001-03-19 Tim Waugh <[email protected]>
* include/linux/parport.h: Increase PARPORT_MAX to 16.
* drivers/char/lp.c: Increase LP_NO to 16.
--- linux/include/linux/parport.h.printers Mon Mar 19 09:41:22 2001
+++ linux/include/linux/parport.h Mon Mar 19 09:42:08 2001
@@ -11,8 +11,8 @@
/* Start off with user-visible constants */
-/* Maximum of 8 ports per machine */
-#define PARPORT_MAX 8
+/* Maximum of 16 ports per machine */
+#define PARPORT_MAX 16
/* Magic numbers */
#define PARPORT_IRQ_NONE -1
--- linux/drivers/char/lp.c.printers Mon Mar 19 09:41:12 2001
+++ linux/drivers/char/lp.c Mon Mar 19 09:41:41 2001
@@ -135,8 +135,8 @@
#include <asm/uaccess.h>
#include <asm/system.h>
-/* if you have more than 3 printers, remember to increase LP_NO */
-#define LP_NO 3
+/* if you have more than 16 printers, remember to increase LP_NO */
+#define LP_NO 16
/* ROUND_UP macro from fs/select.c */
#define ROUND_UP(x,y) (((x)+(y)-1)/(y))