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>
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@ -4,7 +4,7 @@
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* Copyright (c) 1999 Andreas Gal
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* Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
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* Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
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* Copyright (c) 2006-2010 Jiri Kosina
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* Copyright (c) 2006-2012 Jiri Kosina
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*/
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/*
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@ -50,6 +50,10 @@ module_param_named(debug, hid_debug, int, 0600);
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MODULE_PARM_DESC(debug, "toggle HID debugging messages");
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EXPORT_SYMBOL_GPL(hid_debug);
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static int hid_ignore_special_drivers = 0;
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module_param_named(ignore_special_drivers, hid_ignore_special_drivers, int, 0600);
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MODULE_PARM_DESC(debug, "Ignore any special drivers and handle all devices by generic driver");
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/*
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* Register a new report for a device.
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*/
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@ -1678,7 +1682,7 @@ static int hid_bus_match(struct device *dev, struct device_driver *drv)
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return 0;
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/* generic wants all that don't have specialized driver */
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if (!strncmp(hdrv->name, "generic-", 8))
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if (!strncmp(hdrv->name, "generic-", 8) && !hid_ignore_special_drivers)
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return !hid_match_id(hdev, hid_have_special_driver);
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return 1;
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