HID: make it possible to force hid-core claim the device
Introduce 'hid_ignore_special_drivers' module parameter that makes hid-core
claim the device even if it's listed in hid_have_special_driver[]. This
is useful mostly for debugging purposes and specialized initrds, where
all the hid drivers are not avaiable.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index d76d85a..fbecdd3 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -4,7 +4,7 @@
* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
* Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
- * Copyright (c) 2006-2010 Jiri Kosina
+ * Copyright (c) 2006-2012 Jiri Kosina
*/
/*
@@ -50,6 +50,10 @@
MODULE_PARM_DESC(debug, "toggle HID debugging messages");
EXPORT_SYMBOL_GPL(hid_debug);
+static int hid_ignore_special_drivers = 0;
+module_param_named(ignore_special_drivers, hid_ignore_special_drivers, int, 0600);
+MODULE_PARM_DESC(debug, "Ignore any special drivers and handle all devices by generic driver");
+
/*
* Register a new report for a device.
*/
@@ -1678,7 +1682,7 @@
return 0;
/* generic wants all that don't have specialized driver */
- if (!strncmp(hdrv->name, "generic-", 8))
+ if (!strncmp(hdrv->name, "generic-", 8) && !hid_ignore_special_drivers)
return !hid_match_id(hdev, hid_have_special_driver);
return 1;