Linus, here is a patch from Adam J. Richter to add the tiny kernel
hook for device-id based parport device driver module loading, as well
as an example usage in lp.c. (The code for making use of it is already
in modutils.)
Tim.
*/
2001-01-05 Adam J. Richter <[EMAIL PROTECTED]>
* include/linux/parport.h: Declare parport_device_id.
* drivers/char/lp.c: Use it as MODULE_DEVICE_TABLE.
--- linux-2.4.0/include/linux/parport.h.devid Tue Aug 8 13:39:21 2000
+++ linux-2.4.0/include/linux/parport.h Fri Jan 5 10:58:18 2001
@@ -91,6 +91,10 @@
/* Flags for block transfer operations. */
#define PARPORT_EPP_FAST (1<<0) /* Unreliable counts. */
+struct parport_device_id {
+ const char *pattern;
+};
+
/* The rest is for the kernel only */
#ifdef __KERNEL__
--- linux-2.4.0/drivers/char/lp.c.devid Fri Jan 5 10:58:18 2001
+++ linux-2.4.0/drivers/char/lp.c Fri Jan 5 10:58:18 2001
@@ -141,6 +141,17 @@
/* ROUND_UP macro from fs/select.c */
#define ROUND_UP(x,y) (((x)+(y)-1)/(y))
+/* printer_ieee1284_id is declared as its own variable so that it
+ can be in the __initdata section. */
+static __initdata char printer_ieee1284_id[] = "CLS:PRINTER";
+
+static __initdata struct parport_device_id printer_id_tbl[] = {
+ { printer_ieee1284_id },
+ { }
+};
+
+MODULE_DEVICE_TABLE(parport, printer_id_tbl);
+
static devfs_handle_t devfs_handle = NULL;
struct lp_struct lp_table[LP_NO];
-
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