Commit 6b1968d5 authored by Jiri Kosina's avatar Jiri Kosina
Browse files

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: default avatarJiri Kosina <jkosina@suse.cz>
parent a786e83c

drivers/hid/hid-core.c

+6 −2
Original line number Diff line number Diff line
@@ -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_param_named(debug, hid_debug, int, 0600); 
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 @@ static int hid_bus_match(struct device *dev, struct device_driver *drv) 
		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;

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