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Commit 1b474fe8 authored by Benjamin Tissoires's avatar Benjamin Tissoires Committed by Jiri Kosina
Browse files

HID: ntrig: use input_configured() callback to set the name 



The use of input_configured() allows the ntrig driver to actually
change the name of the input and its bitmask before it is added to the
input subsystem. Thus, the logs are coherents and udev catch the real
bitmask when the device is added.

Signed-off-by: default avatarBenjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: default avatarRafi Rubin <rafi@seas.upenn.edu>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent cf5425bf

drivers/hid/hid-ntrig.c

+34 −34
Original line number Diff line number Diff line
@@ -858,12 +858,43 @@ not_claimed_input: 
	return 1;

}



static void ntrig_input_configured(struct hid_device *hid,

		struct hid_input *hidinput)



{

	struct input_dev *input = hidinput->input;



	if (hidinput->report->maxfield < 1)

		return;



	switch (hidinput->report->field[0]->application) {

	case HID_DG_PEN:

		input->name = "N-Trig Pen";

		break;

	case HID_DG_TOUCHSCREEN:

		/* These keys are redundant for fingers, clear them

		 * to prevent incorrect identification */

		__clear_bit(BTN_TOOL_PEN, input->keybit);

		__clear_bit(BTN_TOOL_FINGER, input->keybit);

		__clear_bit(BTN_0, input->keybit);

		__set_bit(BTN_TOOL_DOUBLETAP, input->keybit);

		/*

		 * The physical touchscreen (single touch)

		 * input has a value for physical, whereas

		 * the multitouch only has logical input

		 * fields.

		 */

		input->name = (hidinput->report->field[0]->physical) ?

							"N-Trig Touchscreen" :

							"N-Trig MultiTouch";

		break;

	}

}



static int ntrig_probe(struct hid_device *hdev, const struct hid_device_id *id)

{

	int ret;

	struct ntrig_data *nd;

	struct hid_input *hidinput;

	struct input_dev *input;

	struct hid_report *report;



	if (id->driver_data)
@@ -901,38 +932,6 @@ static int ntrig_probe(struct hid_device *hdev, const struct hid_device_id *id) 
		goto err_free;

	}





	list_for_each_entry(hidinput, &hdev->inputs, list) {

		if (hidinput->report->maxfield < 1)

			continue;



		input = hidinput->input;

		switch (hidinput->report->field[0]->application) {

		case HID_DG_PEN:

			input->name = "N-Trig Pen";

			break;

		case HID_DG_TOUCHSCREEN:

			/* These keys are redundant for fingers, clear them

			 * to prevent incorrect identification */

			__clear_bit(BTN_TOOL_PEN, input->keybit);

			__clear_bit(BTN_TOOL_FINGER, input->keybit);

			__clear_bit(BTN_0, input->keybit);

			__set_bit(BTN_TOOL_DOUBLETAP, input->keybit);

			/*

			 * The physical touchscreen (single touch)

			 * input has a value for physical, whereas

			 * the multitouch only has logical input

			 * fields.

			 */

			input->name =

				(hidinput->report->field[0]

				 ->physical) ?

				"N-Trig Touchscreen" :

				"N-Trig MultiTouch";

			break;

		}

	}



	/* This is needed for devices with more recent firmware versions */

	report = hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[0x0a];

	if (report) {
@@ -1023,6 +1022,7 @@ static struct hid_driver ntrig_driver = { 
	.remove = ntrig_remove,

	.input_mapping = ntrig_input_mapping,

	.input_mapped = ntrig_input_mapped,

	.input_configured = ntrig_input_configured,

	.usage_table = ntrig_grabbed_usages,

	.event = ntrig_event,

};