Commit 83e44918 authored by Chris Ball's avatar Chris Ball Committed by Jiri Kosina
Browse files

USB HID: Add ID for eGalax Multitouch used in JooJoo tablet 

The JooJoo tablet (http://thejoojoo.com/

) contains an "eGalax Inc. USB
TouchController", and this patch hooks it up to the egalax-touch driver.
Without the patch we don't get any cursor motion, since it comes through
Z/RX rather than X/Y.

(The egalax-touch driver does not yet generate a correct event sequence
for the "serial" protocol used by this device, though -- see the note
added to the code, which comes from research by Stéphane Chatty.)

Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Stéphane Chatty <chatty@enac.fr>
Signed-off-by: default avatarChris Ball <cjb@laptop.org>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent 9c9e54a8

drivers/hid/hid-core.c

+1 −0
Original line number Diff line number Diff line
@@ -1299,6 +1299,7 @@ static const struct hid_device_id hid_blacklist[] = { 
	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },

	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },

	{ HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) },

	{ HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) },

	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },

	{ HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },

	{ HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },

drivers/hid/hid-egalax.c

+9 −0
Original line number Diff line number Diff line
@@ -159,6 +159,13 @@ static int egalax_event(struct hid_device *hid, struct hid_field *field, 
{

	struct egalax_data *td = hid_get_drvdata(hid);



	/* Note, eGalax has two product lines: the first is resistive and

	 * uses a standard parallel multitouch protocol (product ID ==

	 * 48xx).  The second is capacitive and uses an unusual "serial"

	 * protocol with a different message for each multitouch finger

	 * (product ID == 72xx).  We do not yet generate a correct event

	 * sequence for the capacitive/serial protocol.

	 */

	if (hid->claimed & HID_CLAIMED_INPUT) {

		struct input_dev *input = field->hidinput->input;
@@ -246,6 +253,8 @@ static void egalax_remove(struct hid_device *hdev) 
static const struct hid_device_id egalax_devices[] = {

	{ HID_USB_DEVICE(USB_VENDOR_ID_DWAV,

			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) },

	{ HID_USB_DEVICE(USB_VENDOR_ID_DWAV,

			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) },

	{ }

};

MODULE_DEVICE_TABLE(hid, egalax_devices);

drivers/hid/hid-ids.h

+1 −0
Original line number Diff line number Diff line
@@ -188,6 +188,7 @@ 
#define USB_VENDOR_ID_DWAV		0x0eef

#define USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER	0x0001

#define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH	0x480d

#define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1	0x720c



#define USB_VENDOR_ID_ELECOM		0x056e

#define USB_DEVICE_ID_ELECOM_BM084	0x0061

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